338:
111:
310:
497:
2009:
367:
345:
317:
1912:
446:
2847:
751:
484:
in the Black Mesa and
Paradox basins by Stewart in 1959. Contacts were revised again by Schell and Yochelson in 1966. Blakey named the Black Dragon, Torrey, and Moody Canyon members in the Paradox Basin and Plateau Sedimentary Province in 1974. Contacts were revised yet again by Welsh and others in 1979.
483:
and its age was modified to Early and Middle(?) Triassic by McKee in 1951. Contacts were revised by Robeck in 1956 and Cooley in 1958. The
Tenderfoot, Ali Baba, Sewemup, and Pariott Members were named in the Piceance and Uinta Basins by Shoemaker and Newman in 1959. The Hoskinnini Member was assigned
487:
Kietzke modified the age to Early and Middle
Triassic using biostratigraphic dating in 1988. The Anton Chico Member was assigned in the Palo Duro Basin and areal limits set by Lucas and Hunt in 1989. In 1991 areal limits were set again by Lucas and Hayden. An overview was completed by Lucas in 1991,
473:. While in the Great Basin, Bassler and Reeside characterized and named the Rock Canyon Conglomerate, Virgin Limestone, and Shnabkaib Shale members in 1921. Salt Creek (later replaced by Wupatki and Moqui Members) and the Holbrook Member were found and named in the Black Mesa basin by Hager in 1922.
550:
The general deposition setting was sluggish rivers traversing a flat, featureless coastal plain to the sea. The low relief meant that the shoreline moved great distances with changes of sea level or even with the tides. Thickness varies from a feather edge against the
Uncompahgre highlands to the
611:. This is red conglomeratic sandstone and red siltstone and was laid down by energetic rivers. A distinctive feature is load structures. Sediment sources were apparently the crests of anticlines, and paleocurrent directions are north to northwest, along the corresponding synclines.
2484:
586:
Members differ considerably from east to west, in part because sandstone beds corresponding to marine transgressions are used to define members to the west but cannot be traced to the east. In different regions, by ascending stratigraphic order, the members are:
578:. The lower unconformity corresponds to the regional Tr-1 unconformity and the upper to the regional Tr-3 unconformity. The Tr-1 unconformity represents a hiatus of at least 20 million years while Tr-2 represents a hiatus of about 10 million years.
946:
of the
Moenkopi Formation, in south-western Utah. The discovery of 27 species from 18 genera of two subclasses in these sites in 2013 cast doubt on previous claims that the bivalve fauna only recovered in the Middle Triassic after the
4797:
3942:
3409:
2913:
530:
area. It has a characteristic deep red color and tends to form slopes and benches. The depositional environment varies from fluvial channel and floodplain deposits in the eastern exposures to tidal mudflats in the
685:
after it was recognized to be middle
Triassic in age. Subsequently, named as a member of the Moenkopi when its beds were traced west and demonstrated that it was deposited in a single basin with Moenkopi beds in
623:. This is distinguished from the light brown Sewemup Member by its multihued brown, red, orange and purple strata. Exposures are geographically limited, appearing only in Richardson Amphitheater,
648:. Consists of a basal conglomerate; thinly bedded red sandstone, siltstone, and shale deposited in a tidal flat environment; a sandstone sheet; and a second sequence of tidal flat deposits.
4804:
476:
The Sinbad
Limestone Member was named in the Paradox Basin by Gilluly and Reeside in 1928. Williams and Gregory named the Timpoweap Member in the Plateau sedimentary province in 1947.
3949:
3416:
3377:
2920:
4355:
4188:
857:
5293:
3196:
2553:
Geological evolution of the
Colorado Plateau of eastern Utah and western Colorado, including the San Juan River, Natural Bridges, Canyonlands, Arches, and the Book Cliffs
4492:
4391:
4315:
3372:
617:. This is thinly bedded siltstone, shale, and sandstone, with enough gypsum content to give it a light brown color that contrasts with the darker brown Ali Baba Member.
3106:
4088:
3682:
943:
535:
area to deltaic sandstones and shallow marine limestones at
Capitol Reef. In eastern Nevada and northwestern Utah, it thickens dramatically, then transitions to the
5199:
4413:
4295:
4193:
3233:
3143:
3131:
2878:
2108:
is known from one relatively complete skeleton and a significant amount of other isolated material. Footprints and several fragmentary body fossils are known from
466:
5145:
4540:
4093:
4078:
3743:
3559:
3479:
3305:
830:
5230:
4948:
4520:
4365:
4300:
4163:
3641:
3350:
3101:
5177:
4418:
4128:
4098:
3539:
3253:
3096:
3050:
3014:
690:
Other members listed in alphabetical order, with asterisks (*) indicating usage by the U.S. Geological Survey and other usages by state geological surveys:
4637:
4335:
4290:
4223:
3609:
3340:
3211:
544:
4891:
4790:
4642:
4597:
4570:
4535:
4525:
4433:
4218:
4183:
4138:
4108:
3524:
3206:
5421:
5140:
4761:
4756:
4734:
4698:
4408:
4403:
4325:
4305:
4285:
4198:
4158:
4113:
4103:
4021:
4016:
3889:
3884:
2758:"Stratigraphy and origin of the Triassic Moenkopi Formation and related strata in the Colorado Plateau region, with a section on sedimentary petrology"
2142:
4428:
4330:
3935:
3554:
3519:
3216:
3126:
2027:
2677:
Lucas, S.G.; Hunt, A.P. (1989). "Revised
Triassic stratigraphy in the Tucumcari basin, east-central New Mexico". In Lucas, S.G.; Hunt, A.P. (eds.).
4865:
3720:
3715:
3584:
3402:
2906:
2498:
2125:
2023:
1682:
1179:
1114:
628:
1529:
1480:
1278:
3243:
2657:
Lucas, Spencer G.; Hunt, Adrian P. (1987). "Stratigraphy of the Anton Chico and Santa Rosa Formations, Triassic of East-Central New Mexico".
1584:
1344:
1064:
2714:
Shoemaker, Eugene M.; Newman, William L. (1959). "Moenkopi Formation (Triassic? and Triassic) in Salt Anticline Region, Colorado and Utah".
1056:
The absence of right valves may be caused by the "hydrodynamic separation of the differentially vaulted valves or to weaker calcification".
5426:
2871:
1776:
1713:
1313:
1265:
1004:
309:
1813:
1615:
1493:
1450:
5376:
5361:
4941:
1647:
196:
5386:
1418:
500:
5366:
337:
5356:
2864:
1976:
5396:
5371:
2735:
Stewart, John H. (1959). "Stratigraphic Relations of Hoskinnini Member (Triassic?) of Moenkopi Formation on Colorado Plateau".
2574:
1948:
631:, and Big Bend meander of the Colorado River. This member may be separated from the Sewemup Member by a regional unconformity.
5391:
4934:
2560:
5381:
1893:
from East Greenland, but the type material is poorly preserved, which makes comparison with published specimens difficult.
909:
801:
1955:
5431:
5411:
2851:
1929:
2584:
5416:
1995:
1962:
914:
2630:
2602:
1944:
1933:
1200:"One articulated specimen and approximately 50 isolated left valves", all with external shell layer preserved.
2465:"Bivalves from the Olenekian (Early Triassic) of southwestern Utah: Systematics and evolutionary significance"
2687:
2538:
Blakey, R.C. (1974). "Stratigraphic and depositional analysis of the Moenkopi Formation, southeastern Utah".
2821:
5406:
5273:
824:
480:
189:
5441:
2137:
948:
4173:
3499:
904:
885:
880:
771:
504:
264:
5436:
5401:
3589:
919:
775:
465:
area by Ward in 1901. In 1917 a 'substitute' type locality was located by Gregory in the wall of the
4443:
3091:
2462:
470:
450:
422:
681:. Described previously as the red sandstone member of the Santa Rosa Formation, but placed in its
551:
east to over 600 metres (2,000 ft) in southwestern Utah. The thickness varies greatly in the
5169:
4247:
3619:
3599:
3273:
1922:
601:
on an angular unconformity. Up to 290 feet (88 meters) thick, it consists of basal conglomerate,
458:
2748:
2727:
1969:
5258:
5240:
4990:
3636:
1334:
Numerous medium-sized specimens, mostly with outer shell layer but eroded to varying degrees.
5019:
4907:
4320:
3484:
3325:
3268:
3121:
3086:
2492:
2031:
682:
2102:
is an enigmatic reptile only known from a few tooth-bearing jaws. The poposauroid archosaur
1521:
Slightly differs from the holotype by greater divergence of the dorsal and ventral margins.
4853:
4213:
4168:
4153:
3529:
3330:
3320:
3111:
2834:
575:
382:
124:
115:
Moenkopi at its reference section along the Little Colorado River west of Cameron, Arizona
110:
8:
5187:
4438:
4375:
4203:
4011:
3879:
3862:
3818:
3509:
3504:
3335:
624:
461:
for this formation. It was named for a development at the mouth of Moencopie Wash in the
2828:
2576:
Geology of the Navajo Country: A Reconnaissance of Parts of Arizona, New Mexico and Utah
5263:
5150:
5125:
5077:
4957:
4263:
4118:
4051:
3725:
3677:
3579:
3534:
3355:
3345:
3263:
3258:
3179:
3116:
3073:
3055:
3019:
2887:
2666:
2570:
2065:
1234:
890:
536:
371:
770:
that makes up much of the famous prominent rock formations in protected areas such as
5298:
5204:
5047:
5042:
4739:
4717:
4703:
4681:
4674:
4624:
4592:
4584:
4345:
4310:
4178:
4123:
3758:
3748:
3710:
3687:
3614:
3569:
3549:
3489:
3310:
3283:
3238:
3201:
2974:
2631:"Triassic stratigraphy of the southeastern Colorado Plateau, west-central New Mexico"
2580:
2556:
2464:
789:
785:
540:
496:
20:
5268:
5235:
5135:
5130:
5082:
5072:
5067:
4875:
4607:
4563:
4515:
4448:
4360:
4340:
4268:
4148:
4133:
4073:
4056:
3791:
3753:
3705:
3672:
3628:
3604:
3469:
3462:
3315:
3300:
2817:
2796:
2769:
2744:
2723:
2476:
2312:
For the whole section, except where noted: GEOLEX database Bibliographic References
2120:
2098:
2077:
812:
797:
793:
781:
763:
725:
655:
598:
571:
418:
152:
142:
5283:
5092:
5037:
4575:
4530:
4505:
4423:
4350:
4280:
4208:
4143:
4083:
3801:
3697:
3544:
3278:
3191:
2856:
2808:
Williams, Herbert E.; Gregory, Norman C. (1947). "Zion National Monument, Utah".
2059:
895:
840:
835:
434:
414:
2480:
5278:
4926:
4837:
4510:
4475:
4228:
3846:
3831:
3783:
3735:
3664:
3514:
3065:
863:
851:
430:
955:, includes mainly genera that survived the mass extinction, while the second,
5350:
5160:
4238:
4004:
3474:
3248:
2800:
2516:
2104:
2054:
2008:
1385:
971:
956:
952:
898:
845:
574:
in turn rests unconformably on the Moenkopi. Both unconformities are locally
552:
267:
211:
198:
69:
34:
19:"Moenkopi" redirects here. For the Hopi community in the U.S. Southwest, see
2463:
Michael Hautmann, Andrew B. Smith, Alistair J. McGowan, Hugo Bucher (2013).
658:. Consists of yellowish limestone deposited by a brief marine transgression.
5288:
3594:
3564:
3494:
2114:
2092:
869:
670:. Thinly bedded slope forming siltstone and mudstone with minor evaporites.
527:
462:
1805:
due to subelliptical shape and slightly concave central part of the umbo.
5325:
5316:
4969:
4828:
4819:
4616:
4384:
3964:
3574:
3431:
2966:
2935:
2088:
2083:
2071:
818:
488:
Sprinkel in 1994, Hintze and Axen in 1995 and later, Huntoon and others.
44:
2670:
445:
5011:
4726:
4554:
4034:
3453:
2957:
2109:
2042:
1936: in this section. Unsourced material may be challenged and removed.
642:: Sandstone and siltstone. Found only in the southern part of the area.
532:
402:
390:
386:
249:
89:
54:
2756:
Stewart, John H.; Poole, F. G.; Wilson, R. F.; Cadigan, R. A. (1972).
959:, is represented mainly by genera that evolved in the Early Triassic.
796:, (2)-layered, lighter-red Moenkopi Formation, and (1)-white, layered
366:
5106:
4665:
4484:
3995:
3975:
3855:
3292:
3163:
3152:
3042:
2681:. New Mexico Museum of Natural History and Science. pp. 150–170.
2526:, U.S. Geological Survey Bulletin, vol. 726-C, pp. C87–C107
2050:
940:
567:
556:
523:
511:
426:
167:
94:
2784:
2219:
1911:
5250:
5222:
5057:
5029:
5000:
4980:
4884:
4656:
4466:
4256:
4043:
3772:
3655:
3442:
3172:
3006:
2997:
2946:
2891:
2046:
2035:
936:
755:
560:
515:
410:
254:
84:
79:
64:
59:
49:
2774:
2757:
555:, where the Moenkopi is thin to nonexistent on the crests of salt
5117:
4690:
3986:
3810:
3033:
2988:
759:
394:
232:
99:
74:
4961:
4846:
3871:
3226:
2846:
602:
398:
239:
4812:
2524:
Contributions to economic geology, 1921; Part 2, Mineral fuels
2371:
2369:
2018:
A diverse fossil vertebrate fauna has been described from the
1259:
Shell interior is unknown. USNM 543477 have similarities with
1085:
One left valve with shell over 18.3 mm long and 21.7 mm high.
750:
2038:
519:
177:
3957:
559:
and over 400 meters (1,300 feet) thick in the corresponding
3424:
2928:
2366:
1256:
One right valve (USNM 543477) 6.5 mm long and 4.3 mm high.
767:
406:
244:
2320:
2318:
2255:
2231:
2755:
2688:"Triassic deposits of the Arizona-New Mexico border area"
2603:"Triassic-Jurassic stratigraphy in southwestern Colorado"
2225:
2207:
2296:
2294:
2822:
10.1130/0016-7606(1947)58[211:ZNMU]2.0.CO;2
2354:
2315:
664:. Red beds signifying a return to subaerial deposition.
2679:
Dawn of the age of dinosaurs in the American southwest
2154:
2695:
New Mexico Geological Society Field Conference Series
2638:
New Mexico Geological Society Field Conference Series
2610:
New Mexico Geological Society Field Conference Series
2393:
2291:
605:, massive cliff-forming mudstone and silty sandstone.
2405:
2381:
2342:
2330:
16:
Geologic formation in the southwestern United States
2579:. U.S. Government Printing Office. pp. 23–31.
2267:
2173:
2171:
2169:
2886:
2422:
2420:
2279:
2195:
5348:
4956:
2659:Journal of the Arizona-Nevada Academy of Science
2458:
2456:
2454:
2452:
2243:
2166:
1672:One left valve over 10 mm long and 10 mm high.
2807:
2713:
2450:
2448:
2446:
2444:
2442:
2440:
2438:
2436:
2434:
2432:
2417:
2261:
2237:
2183:
2514:
2213:
1263:sp. from the late Griesbachian of Russia, and
778:. From top to bottom, (Jurassic to Permian):
4942:
4798:
3943:
3410:
2914:
2872:
788:, (4)-cliff-forming, vertically jointed, red
2497:: CS1 maint: multiple names: authors list (
2429:
1380:
1366:One left valve 27 mm long and 27.6 mm high.
966:
876:Found within these parks (incomplete list):
2749:10.1306/0BDA5E73-16BD-11D7-8645000102C1865D
2728:10.1306/0BDA5E70-16BD-11D7-8645000102C1865D
2540:Utah Geological and Mineral Survey Bulletin
2515:Bassler, Harvey; Reeside, J.B. Jr. (1921),
1889:Specimens look similar to the Griesbachian
440:
4949:
4935:
4813:Precambrian chronostratigraphy of Colorado
4805:
4791:
3950:
3936:
3417:
3403:
2921:
2907:
2879:
2865:
2517:"Oil prospects in Washington County, Utah"
344:
316:
5422:Sandstone formations of the United States
2773:
2762:U.S. Geological Survey Professional Paper
2676:
2656:
2399:
2300:
2143:Sandstone formations of the United States
1996:Learn how and when to remove this message
597:. This is everywhere in contact with the
479:The Wupatki Member was first used in the
469:, about 5 miles below Tanner Crossing in
370:Rock layers of the Moenkopi Formation in
3958:Paleozoic chronostratigraphy of Colorado
2550:
2375:
2360:
2324:
2160:
2007:
1383:
969:
749:
495:
444:
365:
3425:Mesozoic chronostratigraphy of Colorado
2929:Cenozoic chronostratigraphy of Colorado
2785:"Geology of the Little Colorado Valley"
2734:
2569:
2273:
2201:
510:The Moenkopi consists of thinly bedded
5349:
2810:Geological Society of America Bulletin
2537:
2487:from the original on February 8, 2024.
2285:
324:Moenkopi Formation (the United States)
4930:
4786:
3931:
3398:
2902:
2860:
2835:Bibliographic References for Moenkopi
2685:
2628:
2600:
2411:
2387:
2348:
2336:
2249:
2177:
2053:are a common component of the fauna.
1270:from the early Permian of Australia.
654:. Named for the Sinbad region in the
3461:
2782:
2189:
1934:adding citations to reliable sources
1905:
1639:Tre earliest specimen of the genus.
1388:reported from the Moenkopi Formation
974:reported from the Moenkopi Formation
910:Glen Canyon National Recreation Area
802:Glen Canyon National Recreation Area
566:The Moenkopi rests unconformably on
5427:Natural history of the Grand Canyon
2469:Journal of Systematic Palaeontology
808:Found in these geologic locations:
13:
2829:GEOLEX database entry for Moenkopi
635:Canyonlands and Glen Canyon area:
413:. This unit is considered to be a
14:
5453:
5377:Triassic formations of New Mexico
5362:Geologic formations of California
2840:
745:
5387:Triassic System of North America
2845:
1910:
1605:Several specimens (steinkerns).
1376:
962:
437:, around 240 million years ago.
343:
336:
315:
308:
109:
42:
5367:Geologic formations of Colorado
3378:Independence Mountain Formation
2306:
2034:vertebrates include freshwater
2030:of northern Arizona. Described
1921:needs additional citations for
1119:is a possibly related species.
1109:Several specimens with shells.
915:Walnut Canyon National Monument
707:Rock Canyon Conglomerate Member
5357:Geologic formations of Arizona
1901:
1141:Several fragmental specimens.
792:, (3)-slope-forming, purplish
674:San Juan Basin and Tucumcari:
491:
40:Early Triassic–Middle Triassic
1:
5397:Middle Triassic North America
5372:Geologic formations of Nevada
4356:Morgan Round Valley Formation
2508:
780:(6)-Rounded tan domes of the
327:Show map of the United States
5392:Early Triassic North America
5274:Frenchman Mountain Dolostone
4189:South Canyon Creek Formation
2831:, USGS (public domain text)
2783:Ward, Lester F. (Dec 1901).
2555:. University of Utah Press.
2148:
858:Plateau sedimentary province
481:Plateau Sedimentary Province
352:Moenkopi Formation (Arizona)
7:
5382:Geologic formations of Utah
5294:Prospect Mountain Sandstone
2789:American Journal of Science
2481:10.1080/14772019.2011.63751
2262:Shoemaker & Newman 1959
2238:Williams & Gregory 1947
2138:Geology of the Grand Canyon
2131:
1169:One incomplete left valve.
949:end-Permian mass extinction
930:
10:
5458:
5432:Capitol Reef National Park
5412:Triassic geology of Nevada
4174:Sangre de Cristo Formation
3197:Central Colorado Volcanics
2629:Lucas, Spencer G. (2021).
2601:Lucas, Spencer G. (2017).
2214:Bassler & Reeside 1921
905:Dinosaur National Monument
886:Capitol Reef National Park
881:Grand Canyon National Park
772:Capitol Reef National Park
581:
505:Capitol Reef National Park
385:that is spread across the
18:
5324:
5315:
5249:
5221:
5195:
5186:
5168:
5159:
5116:
5105:
5056:
5028:
5010:
4999:
4979:
4968:
4883:
4874:
4845:
4836:
4827:
4818:
4782:
4725:
4716:
4689:
4673:
4664:
4655:
4615:
4606:
4583:
4562:
4553:
4493:Williams Canyon Formation
4483:
4474:
4465:
4399:
4392:Williams Canyon Formation
4383:
4374:
4316:Jacque Mountain Formation
4255:
4246:
4237:
4042:
4033:
4003:
3994:
3985:
3974:
3963:
3927:
3870:
3854:
3845:
3809:
3800:
3782:
3771:
3734:
3696:
3663:
3654:
3627:
3590:Pictured Cliffs Formation
3452:
3441:
3430:
3394:
3373:Gravel Mountain Formation
3291:
3225:
3171:
3162:
3151:
3064:
3041:
3032:
3005:
2996:
2987:
2965:
2956:
2945:
2934:
2898:
2551:Fillmore, Robert (2011).
2426:GEOLEX database: Moenkopi
1811:
1711:
1527:
1177:
1062:
1002:
920:Wupatki National Monument
800:sandstone. Picture from
784:, (5)-(dark)-layered red
776:Canyonlands National Park
695:Holbrook Sandstone Member
433:and possibly part of the
302:
294:
286:
278:
273:
260:
227:
188:
183:
173:
163:
158:
148:
138:
130:
120:
108:
33:
28:
5417:Triassic geology of Utah
4444:Ste. Genevieve Formation
3107:Martins Canyon Formation
3092:Cedar Mountain Formation
2801:10.2475/ajs.s4-12.72.401
925:
471:Coconino County, Arizona
451:Coconino County, Arizona
441:History of investigation
417:in Arizona. Part of the
4089:Council Grove Formation
3683:Ralston Creek Formation
3620:Williams Fork Formation
3600:Point Lookout Formation
3274:Poison Canyon Formation
2571:Gregory, Herbert Ernest
1881:Virgin Limestone Member
1853:Virgin Limestone Member
1829:Virgin Limestone Member
1793:Virgin Limestone Member
1761:Virgin Limestone Member
1733:Virgin Limestone Member
1698:Virgin Limestone Member
1667:Virgin Limestone Member
1631:Virgin Limestone Member
1600:Virgin Limestone Member
1569:Virgin Limestone Member
1545:Virgin Limestone Member
1513:Virgin Limestone Member
1470:Virgin Limestone Member
1435:Virgin Limestone Member
1361:Virgin Limestone Member
1329:Virgin Limestone Member
1298:Virgin Limestone Member
1251:Virgin Limestone Member
1219:Virgin Limestone Member
1195:Virgin Limestone Member
1164:Virgin Limestone Member
1136:Virgin Limestone Member
1104:Virgin Limestone Member
1080:Virgin Limestone Member
1048:Virgin Limestone Member
1024:Virgin Limestone Member
944:Virgin Limestone Member
726:Virgin Limestone Member
652:Sinbad Limestone Member
457:There is no designated
5259:Bonanza King Formation
5241:Temple Butte Formation
5200:Monte Cristo Limestone
4991:Horse Spring Formation
4414:Headscrabble Formation
4296:Eagle Valley Evaporite
4194:Stone Corral Formation
3637:Burro Canyon Formation
3234:Blanco Basin Formation
3144:Grouse Mountain Basalt
3132:Wagon Tongue Formation
2795:(72). New Haven: 401.
2764:. Professional Paper.
2015:
1053:Numerous left valves.
951:. The first subclass,
805:
576:angular unconformities
507:
467:Little Colorado Canyon
454:
374:
5146:Queantoweap Sandstone
5020:Willow Tank Formation
4908:Uncompahgre Formation
4541:Pinyon Park Formation
4321:Kansas City Formation
4094:Crestone Conglomerate
4079:Cedar Hills Formation
3744:Glen Canyon Formation
3560:Lion Canyon Formation
3485:Cliff House Sandstone
3480:Castle Gate Formation
3326:Middle Park Formation
3306:Arapahoe Conglomerate
3269:Green River Formation
3122:Troublesome Formation
3087:Browns Park Formation
2854:at Wikimedia Commons
2400:Lucas & Hunt 1987
2301:Lucas & Hunt 1989
2011:
831:Las Vegas-Raton Basin
766:area of southeastern
753:
499:
448:
429:was laid down in the
369:
134:See "Members" section
5231:Muddy Peak Formation
4854:Uinta Mountain Group
4521:Kinderhook Formation
4366:Sharpsdale Formation
4301:Glen Eyrie Formation
4214:Wellington Formation
4169:Phosphoria Formation
4164:Owl Canyon Formation
4154:Minnekahta Formation
3642:Horsetooth Formation
3351:South Park Formation
3331:Nacimiento Formation
3321:Fort Union Formation
3112:North Park Formation
3102:Los Pintos Formation
2686:McKee, E.D. (1951).
2112:. The footprints of
2096:is known, but rare.
1945:"Moenkopi Formation"
1930:improve this article
1886:Numerous specimens.
1029:Numerous specimens.
935:Numerous fossils of
762:stratigraphy of the
383:geological formation
236:Southeast California
125:Geological formation
5407:Triassic California
5178:Callville Limestone
4439:St. Louis Formation
4419:Leadville Formation
4204:Wabaunsee Formation
4129:Ingleside Formation
4099:Day Creek Formation
4012:Chugwater Formation
3880:Chugwater Formation
3863:Chugwater Formation
3819:Chugwater Formation
3540:Kremmling Formation
3510:Fruitland Formation
3505:Fox Hills Formation
3500:Fort Hays Limestone
3336:Ojo Alamo Formation
3254:Echo Park Formation
3097:Flat Tops Volcanics
3051:Dry Union Formation
3015:Dry Union Formation
2378:, pp. 148–154.
2226:Stewart et al. 1972
1876:South-western Utah
1848:South-western Utah
1824:South-western Utah
1788:South-western Utah
1766:Several specimens.
1756:South-western Utah
1738:Several specimens.
1728:South-western Utah
1693:South-western Utah
1662:South-western Utah
1626:South-western Utah
1595:South-western Utah
1564:South-western Utah
1540:South-western Utah
1518:Several specimens.
1508:South-western Utah
1478:Possibly belong to
1465:South-western Utah
1430:South-western Utah
1356:South-western Utah
1324:South-western Utah
1293:South-western Utah
1246:South-western Utah
1224:Several specimens.
1214:South-western Utah
1210:L. curtocardinalis
1190:South-western Utah
1159:South-western Utah
1131:South-western Utah
1099:South-western Utah
1075:South-western Utah
1043:South-western Utah
1019:South-western Utah
668:Moody Canyon Member
646:Black Dragon Member
545:Mahogany formations
355:Show map of Arizona
208: /
35:Stratigraphic range
5442:Zion National Park
5333:Granite and schist
5264:Bright Angel Shale
5151:Toroweap Formation
5126:Coconino Sandstone
5088:Moenkopi Formation
5078:Fossil Hill Member
4958:Chronostratigraphy
4638:Arbuckle Formation
4336:Marmaton Formation
4291:Cherokee Formation
4264:Fountain Formation
4224:Wolfcamp Formation
4119:Glorieta Formation
4052:Fountain Formation
3903:Moenkopi Formation
3837:Moenkopi Formation
3726:Sundance Formation
3678:Morrison Formation
3610:Trinidad Formation
3580:Niobrara Formation
3535:Kirtland Formation
3356:Washakie Formation
3346:San Jose Formation
3341:Raton Conglomerate
3264:Huerfano Formation
3259:Farisita Formation
3212:Pinnacle Formation
3180:Arikaree Formation
3117:Santa Fe Formation
3074:Arikaree Formation
3056:Ogallala Formation
3020:Ogallala Formation
2888:Chronostratigraphy
2852:Moenkopi Formation
2124:are common in the
2066:Quasicyclotosaurus
2022:, mainly from the
2020:Moenkopi Formation
2016:
1834:Three steinkerns.
1560:N. praeorbicularis
1303:Two right valves.
939:were found in the
891:Zion National Park
806:
679:Anton Chico Member
508:
455:
379:Moenkopi Formation
375:
372:Zion National Park
212:35.918°N 111.489°W
29:Moenkopi Formation
5344:
5343:
5340:
5339:
5311:
5310:
5307:
5306:
5299:Tapeats Sandstone
5217:
5216:
5213:
5212:
5205:Redwall Limestone
5101:
5100:
5048:Moenave Formation
5043:Kayenta Formation
4924:
4923:
4920:
4919:
4916:
4915:
4903:
4902:
4899:
4898:
4892:Owiyukuts Complex
4861:
4860:
4778:
4777:
4774:
4773:
4770:
4769:
4752:
4751:
4748:
4747:
4740:Sawatch Formation
4712:
4711:
4704:Sawatch Formation
4682:Dotsero Formation
4651:
4650:
4643:Manitou Formation
4633:
4632:
4625:Dotsero Formation
4598:Simpson Formation
4593:Harding Sandstone
4571:Fremont Limestone
4549:
4548:
4536:Parting Formation
4526:Misener Formation
4501:
4500:
4461:
4460:
4457:
4456:
4434:Spergen Formation
4346:Minturn Formation
4311:Hermosa Formation
4276:
4275:
4219:White Horse Group
4184:Shawnee Formation
4179:Satanka Formation
4139:Lansing Formation
4124:Hermosa Formation
4109:Forelle Formation
4069:
4068:
4065:
4064:
4029:
4028:
3923:
3922:
3919:
3918:
3915:
3914:
3911:
3910:
3898:
3897:
3827:
3826:
3767:
3766:
3759:Wingate Sandstone
3749:Kayenta Formation
3711:Entrada Formation
3688:Wanakah Formation
3650:
3649:
3615:Vermejo Formation
3570:Menefee Formation
3550:Laramie Formation
3525:Hygiene Formation
3390:
3389:
3386:
3385:
3368:
3367:
3364:
3363:
3311:Bridger Formation
3284:Wasatch Formation
3239:Cuchara Formation
3207:Conejos Formation
3202:Chadron Formation
3187:
3186:
3140:
3139:
3082:
3081:
3028:
3027:
2983:
2982:
2975:Alamosa Formation
2850:Media related to
2562:978-1-60781-004-9
2006:
2005:
1998:
1980:
1899:
1898:
1858:Four steinkerns.
1374:
1373:
825:Green River Basin
790:Wingate Sandstone
786:Kayenta Formation
640:Hoskinnini Member
595:Tenderfoot Member
449:Moenkopi Wash in
364:
363:
21:Moenkopi, Arizona
5449:
5437:Colorado Plateau
5402:Triassic Arizona
5322:
5321:
5269:Dunderberg Shale
5236:Sultan Formation
5193:
5192:
5166:
5165:
5141:Pakoon Limestone
5136:Kaibab Formation
5131:Hermit Formation
5114:
5113:
5109:
5083:Luning Formation
5073:Favret Formation
5068:Chinle Formation
5060:
5008:
5007:
5003:
4983:
4977:
4976:
4972:
4951:
4944:
4937:
4928:
4927:
4881:
4880:
4843:
4842:
4834:
4833:
4825:
4824:
4807:
4800:
4793:
4784:
4783:
4762:Tintic Formation
4757:Reagan Formation
4735:Lodore Formation
4723:
4722:
4699:Lodore Formation
4671:
4670:
4662:
4661:
4613:
4612:
4560:
4559:
4516:Elbert Formation
4481:
4480:
4472:
4471:
4449:Warsaw Formation
4409:Gilman Formation
4404:Beulah Formation
4381:
4380:
4361:Morrow Formation
4341:Maroon Formation
4326:Kerber Formation
4306:Gothic Formation
4286:Belden Formation
4269:Madera Formation
4253:
4252:
4244:
4243:
4199:Sumner Formation
4159:Opeche Formation
4149:Maroon Formation
4134:Kaibab Limestone
4114:Glendo Formation
4104:Falcon Formation
4074:Blaine Formation
4057:Madera Formation
4040:
4039:
4022:Taloga Formation
4017:Lykins Formation
4001:
4000:
3992:
3991:
3983:
3982:
3978:
3972:
3971:
3967:
3952:
3945:
3938:
3929:
3928:
3890:Taloga Formation
3885:Lykins Formation
3852:
3851:
3807:
3806:
3792:Chinle Formation
3780:
3779:
3775:
3754:Navajo Formation
3706:Carmel Formation
3673:Curtis Formation
3661:
3660:
3605:Smoky Hill Chalk
3490:Codell Sandstone
3470:Benton Formation
3459:
3458:
3450:
3449:
3445:
3439:
3438:
3434:
3419:
3412:
3405:
3396:
3395:
3316:Denver Formation
3301:Animas Formation
3169:
3168:
3160:
3159:
3155:
3039:
3038:
3003:
3002:
2994:
2993:
2963:
2962:
2954:
2953:
2949:
2943:
2942:
2938:
2923:
2916:
2909:
2900:
2899:
2881:
2874:
2867:
2858:
2857:
2849:
2825:
2804:
2779:
2777:
2752:
2731:
2710:
2708:
2706:
2692:
2682:
2674:
2653:
2651:
2649:
2635:
2625:
2623:
2621:
2607:
2597:
2595:
2593:
2566:
2547:
2534:
2533:
2531:
2521:
2503:
2502:
2496:
2488:
2460:
2427:
2424:
2415:
2409:
2403:
2397:
2391:
2385:
2379:
2373:
2364:
2358:
2352:
2346:
2340:
2334:
2328:
2322:
2313:
2310:
2304:
2298:
2289:
2283:
2277:
2271:
2265:
2259:
2253:
2247:
2241:
2235:
2229:
2223:
2217:
2211:
2205:
2199:
2193:
2187:
2181:
2175:
2164:
2158:
2121:Rhynchosauroides
2099:Anisodontosaurus
2001:
1994:
1990:
1987:
1981:
1979:
1938:
1914:
1906:
1798:One left valve.
1703:119 steinkerns.
1550:One left valve.
1440:Two steinkerns.
1381:
1320:P. putiatinensis
967:
813:Black Mesa Basin
798:Cutler Formation
794:Chinle Formation
782:Navajo Sandstone
764:Colorado Plateau
719:Timpoweap Member
713:Shnabkaib Member
656:San Rafael Swell
599:Cutler Formation
572:Chinle Formation
419:Colorado Plateau
356:
347:
346:
340:
328:
319:
318:
312:
223:
222:
220:
219:
218:
217:35.918; -111.489
213:
209:
206:
205:
204:
201:
153:Kaibab Limestone
143:Chinle Formation
113:
104:
41:
26:
25:
5457:
5456:
5452:
5451:
5450:
5448:
5447:
5446:
5347:
5346:
5345:
5336:
5303:
5284:Nopah Formation
5245:
5209:
5182:
5155:
5107:
5097:
5093:Prida Formation
5058:
5052:
5038:Aztec Sandstone
5024:
5001:
4995:
4981:
4970:
4964:
4955:
4925:
4912:
4895:
4870:
4857:
4814:
4811:
4766:
4744:
4708:
4685:
4647:
4629:
4602:
4579:
4576:Viola Formation
4545:
4531:Ouray Formation
4506:Aneth Formation
4497:
4453:
4429:Osage Formation
4424:Molas Formation
4395:
4370:
4351:Molas Formation
4331:Keyes Formation
4281:Atoka Formation
4272:
4233:
4209:Weber Formation
4144:Lyons Formation
4084:Chase Formation
4061:
4025:
3976:
3965:
3959:
3956:
3907:
3894:
3866:
3841:
3823:
3796:
3773:
3763:
3730:
3692:
3646:
3623:
3555:Lewis Formation
3545:Lance Formation
3520:Greenhorn Shale
3443:
3432:
3426:
3423:
3382:
3360:
3287:
3279:Uinta Formation
3221:
3217:Pitch Formation
3192:Brule Formation
3183:
3153:
3147:
3136:
3127:Trump Formation
3078:
3060:
3024:
2979:
2947:
2936:
2930:
2927:
2894:
2885:
2843:
2704:
2702:
2690:
2647:
2645:
2633:
2619:
2617:
2605:
2591:
2589:
2587:
2563:
2529:
2527:
2519:
2511:
2506:
2490:
2489:
2461:
2430:
2425:
2418:
2410:
2406:
2398:
2394:
2386:
2382:
2374:
2367:
2359:
2355:
2347:
2343:
2335:
2331:
2323:
2316:
2311:
2307:
2299:
2292:
2284:
2280:
2272:
2268:
2260:
2256:
2248:
2244:
2236:
2232:
2224:
2220:
2212:
2208:
2200:
2196:
2188:
2184:
2176:
2167:
2159:
2155:
2151:
2134:
2060:Eocyclotosaurus
2049:. Temnospondyl
2028:Holbrook Member
2013:Eocyclotosaurus
2002:
1991:
1985:
1982:
1939:
1937:
1927:
1915:
1904:
1636:One steinkern.
1574:One steinkern.
1475:Few specimens.
1379:
965:
933:
928:
896:Monument Valley
841:Palo Duro Basin
836:Orogrande Basin
779:
748:
729:(AZ*, NV*, UT*)
715:(AZ*, NV*, UT*)
709:(AZ*, NV*, UT*)
621:Parriott Member
609:Ali Baba Member
590:Paradox Basin:
584:
494:
443:
435:Middle Triassic
423:Basin and Range
401:, southeastern
360:
359:
358:
357:
354:
353:
350:
349:
348:
331:
330:
329:
326:
325:
322:
321:
320:
252:
247:
242:
237:
235:
216:
214:
210:
207:
202:
199:
197:
195:
194:
116:
103:
102:
97:
92:
87:
82:
77:
72:
67:
62:
57:
52:
47:
39:
38:
24:
17:
12:
11:
5:
5455:
5445:
5444:
5439:
5434:
5429:
5424:
5419:
5414:
5409:
5404:
5399:
5394:
5389:
5384:
5379:
5374:
5369:
5364:
5359:
5342:
5341:
5338:
5337:
5335:
5334:
5330:
5328:
5319:
5313:
5312:
5309:
5308:
5305:
5304:
5302:
5301:
5296:
5291:
5286:
5281:
5279:Muav Limestone
5276:
5271:
5266:
5261:
5255:
5253:
5247:
5246:
5244:
5243:
5238:
5233:
5227:
5225:
5219:
5218:
5215:
5214:
5211:
5210:
5208:
5207:
5202:
5196:
5190:
5184:
5183:
5181:
5180:
5174:
5172:
5163:
5157:
5156:
5154:
5153:
5148:
5143:
5138:
5133:
5128:
5122:
5120:
5111:
5103:
5102:
5099:
5098:
5096:
5095:
5090:
5085:
5080:
5075:
5070:
5064:
5062:
5054:
5053:
5051:
5050:
5045:
5040:
5034:
5032:
5026:
5025:
5023:
5022:
5016:
5014:
5005:
4997:
4996:
4994:
4993:
4987:
4985:
4974:
4966:
4965:
4954:
4953:
4946:
4939:
4931:
4922:
4921:
4918:
4917:
4914:
4913:
4911:
4910:
4904:
4901:
4900:
4897:
4896:
4894:
4889:
4887:
4878:
4872:
4871:
4869:
4868:
4866:Tava Formation
4862:
4859:
4858:
4856:
4851:
4849:
4840:
4831:
4822:
4816:
4815:
4810:
4809:
4802:
4795:
4787:
4780:
4779:
4776:
4775:
4772:
4771:
4768:
4767:
4765:
4764:
4759:
4753:
4750:
4749:
4746:
4745:
4743:
4742:
4737:
4731:
4729:
4720:
4714:
4713:
4710:
4709:
4707:
4706:
4701:
4695:
4693:
4687:
4686:
4684:
4679:
4677:
4668:
4659:
4653:
4652:
4649:
4648:
4646:
4645:
4640:
4634:
4631:
4630:
4628:
4627:
4621:
4619:
4610:
4604:
4603:
4601:
4600:
4595:
4589:
4587:
4581:
4580:
4578:
4573:
4568:
4566:
4557:
4551:
4550:
4547:
4546:
4544:
4543:
4538:
4533:
4528:
4523:
4518:
4513:
4511:Dyer Formation
4508:
4502:
4499:
4498:
4496:
4495:
4489:
4487:
4478:
4469:
4463:
4462:
4459:
4458:
4455:
4454:
4452:
4451:
4446:
4441:
4436:
4431:
4426:
4421:
4416:
4411:
4406:
4400:
4397:
4396:
4394:
4389:
4387:
4378:
4372:
4371:
4369:
4368:
4363:
4358:
4353:
4348:
4343:
4338:
4333:
4328:
4323:
4318:
4313:
4308:
4303:
4298:
4293:
4288:
4283:
4277:
4274:
4273:
4271:
4266:
4261:
4259:
4250:
4241:
4235:
4234:
4232:
4231:
4229:Yeso Formation
4226:
4221:
4216:
4211:
4206:
4201:
4196:
4191:
4186:
4181:
4176:
4171:
4166:
4161:
4156:
4151:
4146:
4141:
4136:
4131:
4126:
4121:
4116:
4111:
4106:
4101:
4096:
4091:
4086:
4081:
4076:
4070:
4067:
4066:
4063:
4062:
4060:
4059:
4054:
4048:
4046:
4037:
4031:
4030:
4027:
4026:
4024:
4019:
4014:
4009:
4007:
3998:
3989:
3980:
3969:
3961:
3960:
3955:
3954:
3947:
3940:
3932:
3925:
3924:
3921:
3920:
3917:
3916:
3913:
3912:
3909:
3908:
3906:
3905:
3899:
3896:
3895:
3893:
3892:
3887:
3882:
3876:
3874:
3868:
3867:
3865:
3860:
3858:
3849:
3843:
3842:
3840:
3839:
3834:
3832:Jelm Formation
3828:
3825:
3824:
3822:
3821:
3815:
3813:
3804:
3798:
3797:
3795:
3794:
3788:
3786:
3777:
3769:
3768:
3765:
3764:
3762:
3761:
3756:
3751:
3746:
3740:
3738:
3732:
3731:
3729:
3728:
3723:
3721:Page Formation
3718:
3716:Garo Formation
3713:
3708:
3702:
3700:
3694:
3693:
3691:
3690:
3685:
3680:
3675:
3669:
3667:
3658:
3652:
3651:
3648:
3647:
3645:
3644:
3639:
3633:
3631:
3625:
3624:
3622:
3617:
3612:
3607:
3602:
3597:
3592:
3587:
3585:Pando Porphyry
3582:
3577:
3572:
3567:
3562:
3557:
3552:
3547:
3542:
3537:
3532:
3527:
3522:
3517:
3515:Graneros Shale
3512:
3507:
3502:
3497:
3492:
3487:
3482:
3477:
3472:
3467:
3465:
3456:
3447:
3436:
3428:
3427:
3422:
3421:
3414:
3407:
3399:
3392:
3391:
3388:
3387:
3384:
3383:
3381:
3380:
3375:
3369:
3366:
3365:
3362:
3361:
3359:
3358:
3353:
3348:
3343:
3338:
3333:
3328:
3323:
3318:
3313:
3308:
3303:
3297:
3295:
3289:
3288:
3286:
3281:
3276:
3271:
3266:
3261:
3256:
3251:
3246:
3241:
3236:
3231:
3229:
3223:
3222:
3220:
3219:
3214:
3209:
3204:
3199:
3194:
3188:
3185:
3184:
3182:
3177:
3175:
3166:
3157:
3149:
3148:
3146:
3141:
3138:
3137:
3135:
3134:
3129:
3124:
3119:
3114:
3109:
3104:
3099:
3094:
3089:
3083:
3080:
3079:
3077:
3076:
3070:
3068:
3062:
3061:
3059:
3058:
3053:
3047:
3045:
3036:
3030:
3029:
3026:
3025:
3023:
3022:
3017:
3011:
3009:
3000:
2991:
2985:
2984:
2981:
2980:
2978:
2977:
2971:
2969:
2960:
2951:
2940:
2932:
2931:
2926:
2925:
2918:
2911:
2903:
2896:
2895:
2884:
2883:
2876:
2869:
2861:
2842:
2841:External links
2839:
2838:
2837:
2832:
2826:
2805:
2780:
2753:
2732:
2711:
2683:
2654:
2626:
2598:
2586:978-0341722533
2585:
2567:
2561:
2548:
2535:
2510:
2507:
2505:
2504:
2475:(3): 263-293.
2428:
2416:
2414:, p. 231.
2404:
2392:
2390:, p. 151.
2380:
2365:
2363:, p. 142.
2353:
2351:, p. 155.
2341:
2339:, p. 149.
2329:
2327:, p. 143.
2314:
2305:
2290:
2278:
2266:
2254:
2242:
2230:
2218:
2206:
2194:
2182:
2165:
2163:, p. 144.
2152:
2150:
2147:
2146:
2145:
2140:
2133:
2130:
2126:Wupatki Member
2024:Wupatki Member
2004:
2003:
1918:
1916:
1909:
1903:
1900:
1897:
1896:
1894:
1887:
1884:
1883:
1882:
1877:
1874:
1864:
1863:
1861:
1859:
1856:
1855:
1854:
1849:
1846:
1844:U.? canalensis
1840:
1839:
1837:
1835:
1832:
1831:
1830:
1825:
1822:
1820:U.? fassaensis
1817:
1809:
1808:
1806:
1799:
1796:
1795:
1794:
1789:
1786:
1780:
1772:
1771:
1769:
1767:
1764:
1763:
1762:
1757:
1754:
1744:
1743:
1741:
1739:
1736:
1735:
1734:
1729:
1726:
1717:
1709:
1708:
1706:
1704:
1701:
1700:
1699:
1694:
1691:
1689:S. recuperator
1686:
1678:
1677:
1675:
1673:
1670:
1669:
1668:
1663:
1660:
1651:
1643:
1642:
1640:
1637:
1634:
1633:
1632:
1627:
1624:
1619:
1611:
1610:
1608:
1606:
1603:
1602:
1601:
1596:
1593:
1588:
1580:
1579:
1577:
1575:
1572:
1571:
1570:
1565:
1562:
1556:
1555:
1553:
1551:
1548:
1547:
1546:
1541:
1538:
1533:
1525:
1524:
1522:
1519:
1516:
1515:
1514:
1509:
1506:
1497:
1489:
1488:
1486:
1476:
1473:
1472:
1471:
1466:
1463:
1454:
1446:
1445:
1443:
1441:
1438:
1437:
1436:
1431:
1428:
1422:
1414:
1413:
1410:
1407:
1404:
1401:
1398:
1395:
1391:
1390:
1378:
1375:
1372:
1371:
1369:
1367:
1364:
1363:
1362:
1357:
1354:
1348:
1340:
1339:
1337:
1335:
1332:
1331:
1330:
1325:
1322:
1317:
1309:
1308:
1306:
1304:
1301:
1300:
1299:
1294:
1291:
1282:
1274:
1273:
1271:
1257:
1254:
1253:
1252:
1247:
1244:
1238:
1230:
1229:
1227:
1225:
1222:
1221:
1220:
1215:
1212:
1206:
1205:
1203:
1201:
1198:
1197:
1196:
1191:
1188:
1183:
1175:
1174:
1172:
1170:
1167:
1166:
1165:
1160:
1157:
1147:
1146:
1144:
1142:
1139:
1138:
1137:
1132:
1129:
1127:E. virginensis
1123:
1122:
1120:
1110:
1107:
1106:
1105:
1100:
1097:
1091:
1090:
1088:
1086:
1083:
1082:
1081:
1076:
1073:
1068:
1060:
1059:
1057:
1054:
1051:
1050:
1049:
1044:
1041:
1035:
1034:
1032:
1030:
1027:
1026:
1025:
1020:
1017:
1008:
1000:
999:
996:
993:
990:
987:
984:
981:
977:
976:
964:
961:
932:
929:
927:
924:
923:
922:
917:
912:
907:
902:
893:
888:
883:
874:
873:
867:
864:San Juan Basin
861:
855:
852:Piceance Basin
849:
843:
838:
833:
828:
822:
816:
747:
746:Places visible
744:
743:
742:
739:Wupatki Member
736:
733:Winslow Member
730:
722:
716:
710:
704:
698:
688:
687:
672:
671:
665:
659:
649:
643:
633:
632:
618:
615:Sewemup Member
612:
606:
583:
580:
493:
490:
442:
439:
431:Lower Triassic
362:
361:
351:
342:
341:
335:
334:
333:
332:
323:
314:
313:
307:
306:
305:
304:
303:
300:
299:
296:
292:
291:
288:
284:
283:
280:
276:
275:
271:
270:
262:
258:
257:
229:
225:
224:
192:
186:
185:
181:
180:
175:
171:
170:
165:
161:
160:
156:
155:
150:
146:
145:
140:
136:
135:
132:
128:
127:
122:
118:
117:
114:
106:
105:
98:
93:
88:
83:
78:
73:
68:
63:
58:
53:
48:
43:
31:
30:
15:
9:
6:
4:
3:
2:
5454:
5443:
5440:
5438:
5435:
5433:
5430:
5428:
5425:
5423:
5420:
5418:
5415:
5413:
5410:
5408:
5405:
5403:
5400:
5398:
5395:
5393:
5390:
5388:
5385:
5383:
5380:
5378:
5375:
5373:
5370:
5368:
5365:
5363:
5360:
5358:
5355:
5354:
5352:
5332:
5331:
5329:
5327:
5323:
5320:
5318:
5314:
5300:
5297:
5295:
5292:
5290:
5287:
5285:
5282:
5280:
5277:
5275:
5272:
5270:
5267:
5265:
5262:
5260:
5257:
5256:
5254:
5252:
5248:
5242:
5239:
5237:
5234:
5232:
5229:
5228:
5226:
5224:
5220:
5206:
5203:
5201:
5198:
5197:
5194:
5191:
5189:
5185:
5179:
5176:
5175:
5173:
5171:
5167:
5164:
5162:
5158:
5152:
5149:
5147:
5144:
5142:
5139:
5137:
5134:
5132:
5129:
5127:
5124:
5123:
5121:
5119:
5115:
5112:
5110:
5104:
5094:
5091:
5089:
5086:
5084:
5081:
5079:
5076:
5074:
5071:
5069:
5066:
5065:
5063:
5061:
5055:
5049:
5046:
5044:
5041:
5039:
5036:
5035:
5033:
5031:
5027:
5021:
5018:
5017:
5015:
5013:
5009:
5006:
5004:
4998:
4992:
4989:
4988:
4986:
4984:
4978:
4975:
4973:
4967:
4963:
4959:
4952:
4947:
4945:
4940:
4938:
4933:
4932:
4929:
4909:
4906:
4905:
4893:
4890:
4888:
4886:
4882:
4879:
4877:
4873:
4867:
4864:
4863:
4855:
4852:
4850:
4848:
4844:
4841:
4839:
4835:
4832:
4830:
4826:
4823:
4821:
4817:
4808:
4803:
4801:
4796:
4794:
4789:
4788:
4785:
4781:
4763:
4760:
4758:
4755:
4754:
4741:
4738:
4736:
4733:
4732:
4730:
4728:
4724:
4721:
4719:
4715:
4705:
4702:
4700:
4697:
4696:
4694:
4692:
4688:
4683:
4680:
4678:
4676:
4672:
4669:
4667:
4663:
4660:
4658:
4654:
4644:
4641:
4639:
4636:
4635:
4626:
4623:
4622:
4620:
4618:
4614:
4611:
4609:
4605:
4599:
4596:
4594:
4591:
4590:
4588:
4586:
4582:
4577:
4574:
4572:
4569:
4567:
4565:
4561:
4558:
4556:
4552:
4542:
4539:
4537:
4534:
4532:
4529:
4527:
4524:
4522:
4519:
4517:
4514:
4512:
4509:
4507:
4504:
4503:
4494:
4491:
4490:
4488:
4486:
4482:
4479:
4477:
4473:
4470:
4468:
4464:
4450:
4447:
4445:
4442:
4440:
4437:
4435:
4432:
4430:
4427:
4425:
4422:
4420:
4417:
4415:
4412:
4410:
4407:
4405:
4402:
4401:
4398:
4393:
4390:
4388:
4386:
4382:
4379:
4377:
4373:
4367:
4364:
4362:
4359:
4357:
4354:
4352:
4349:
4347:
4344:
4342:
4339:
4337:
4334:
4332:
4329:
4327:
4324:
4322:
4319:
4317:
4314:
4312:
4309:
4307:
4304:
4302:
4299:
4297:
4294:
4292:
4289:
4287:
4284:
4282:
4279:
4278:
4270:
4267:
4265:
4262:
4260:
4258:
4254:
4251:
4249:
4245:
4242:
4240:
4236:
4230:
4227:
4225:
4222:
4220:
4217:
4215:
4212:
4210:
4207:
4205:
4202:
4200:
4197:
4195:
4192:
4190:
4187:
4185:
4182:
4180:
4177:
4175:
4172:
4170:
4167:
4165:
4162:
4160:
4157:
4155:
4152:
4150:
4147:
4145:
4142:
4140:
4137:
4135:
4132:
4130:
4127:
4125:
4122:
4120:
4117:
4115:
4112:
4110:
4107:
4105:
4102:
4100:
4097:
4095:
4092:
4090:
4087:
4085:
4082:
4080:
4077:
4075:
4072:
4071:
4058:
4055:
4053:
4050:
4049:
4047:
4045:
4041:
4038:
4036:
4032:
4023:
4020:
4018:
4015:
4013:
4010:
4008:
4006:
4005:Changhsingian
4002:
3999:
3997:
3993:
3990:
3988:
3984:
3981:
3979:
3973:
3970:
3968:
3962:
3953:
3948:
3946:
3941:
3939:
3934:
3933:
3930:
3926:
3904:
3901:
3900:
3891:
3888:
3886:
3883:
3881:
3878:
3877:
3875:
3873:
3869:
3864:
3861:
3859:
3857:
3853:
3850:
3848:
3844:
3838:
3835:
3833:
3830:
3829:
3820:
3817:
3816:
3814:
3812:
3808:
3805:
3803:
3799:
3793:
3790:
3789:
3787:
3785:
3781:
3778:
3776:
3770:
3760:
3757:
3755:
3752:
3750:
3747:
3745:
3742:
3741:
3739:
3737:
3733:
3727:
3724:
3722:
3719:
3717:
3714:
3712:
3709:
3707:
3704:
3703:
3701:
3699:
3695:
3689:
3686:
3684:
3681:
3679:
3676:
3674:
3671:
3670:
3668:
3666:
3662:
3659:
3657:
3653:
3643:
3640:
3638:
3635:
3634:
3632:
3630:
3626:
3621:
3618:
3616:
3613:
3611:
3608:
3606:
3603:
3601:
3598:
3596:
3593:
3591:
3588:
3586:
3583:
3581:
3578:
3576:
3573:
3571:
3568:
3566:
3563:
3561:
3558:
3556:
3553:
3551:
3548:
3546:
3543:
3541:
3538:
3536:
3533:
3531:
3528:
3526:
3523:
3521:
3518:
3516:
3513:
3511:
3508:
3506:
3503:
3501:
3498:
3496:
3493:
3491:
3488:
3486:
3483:
3481:
3478:
3476:
3475:Carlile Shale
3473:
3471:
3468:
3466:
3464:
3460:
3457:
3455:
3451:
3448:
3446:
3440:
3437:
3435:
3429:
3420:
3415:
3413:
3408:
3406:
3401:
3400:
3397:
3393:
3379:
3376:
3374:
3371:
3370:
3357:
3354:
3352:
3349:
3347:
3344:
3342:
3339:
3337:
3334:
3332:
3329:
3327:
3324:
3322:
3319:
3317:
3314:
3312:
3309:
3307:
3304:
3302:
3299:
3298:
3296:
3294:
3290:
3285:
3282:
3280:
3277:
3275:
3272:
3270:
3267:
3265:
3262:
3260:
3257:
3255:
3252:
3250:
3249:Dawson Arkose
3247:
3245:
3242:
3240:
3237:
3235:
3232:
3230:
3228:
3224:
3218:
3215:
3213:
3210:
3208:
3205:
3203:
3200:
3198:
3195:
3193:
3190:
3189:
3181:
3178:
3176:
3174:
3170:
3167:
3165:
3161:
3158:
3156:
3150:
3145:
3142:
3133:
3130:
3128:
3125:
3123:
3120:
3118:
3115:
3113:
3110:
3108:
3105:
3103:
3100:
3098:
3095:
3093:
3090:
3088:
3085:
3084:
3075:
3072:
3071:
3069:
3067:
3063:
3057:
3054:
3052:
3049:
3048:
3046:
3044:
3040:
3037:
3035:
3031:
3021:
3018:
3016:
3013:
3012:
3010:
3008:
3004:
3001:
2999:
2995:
2992:
2990:
2986:
2976:
2973:
2972:
2970:
2968:
2964:
2961:
2959:
2955:
2952:
2950:
2944:
2941:
2939:
2933:
2924:
2919:
2917:
2912:
2910:
2905:
2904:
2901:
2897:
2893:
2889:
2882:
2877:
2875:
2870:
2868:
2863:
2862:
2859:
2855:
2853:
2848:
2836:
2833:
2830:
2827:
2823:
2819:
2815:
2811:
2806:
2802:
2798:
2794:
2790:
2786:
2781:
2776:
2775:10.3133/pp691
2771:
2767:
2763:
2759:
2754:
2750:
2746:
2742:
2738:
2737:AAPG Bulletin
2733:
2729:
2725:
2721:
2717:
2716:AAPG Bulletin
2712:
2700:
2696:
2689:
2684:
2680:
2672:
2668:
2664:
2660:
2655:
2643:
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2615:
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2435:
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2423:
2421:
2413:
2408:
2401:
2396:
2389:
2384:
2377:
2376:Fillmore 2011
2372:
2370:
2362:
2361:Fillmore 2011
2357:
2350:
2345:
2338:
2333:
2326:
2325:Fillmore 2011
2321:
2319:
2309:
2302:
2297:
2295:
2287:
2282:
2275:
2270:
2263:
2258:
2251:
2246:
2239:
2234:
2227:
2222:
2215:
2210:
2203:
2198:
2191:
2186:
2179:
2174:
2172:
2170:
2162:
2161:Fillmore 2011
2157:
2153:
2144:
2141:
2139:
2136:
2135:
2129:
2127:
2123:
2122:
2117:
2116:
2115:Cheirotherium
2111:
2107:
2106:
2105:Arizonasaurus
2101:
2100:
2095:
2094:
2090:
2086:
2085:
2080:
2079:
2074:
2073:
2068:
2067:
2062:
2061:
2056:
2055:Temnospondyli
2052:
2048:
2044:
2040:
2037:
2033:
2029:
2025:
2021:
2014:
2010:
2000:
1997:
1989:
1978:
1975:
1971:
1968:
1964:
1961:
1957:
1954:
1950:
1947: –
1946:
1942:
1941:Find sources:
1935:
1931:
1925:
1924:
1919:This section
1917:
1913:
1908:
1907:
1895:
1892:
1888:
1885:
1880:
1879:
1878:
1875:
1873:
1869:
1866:
1865:
1862:
1860:
1857:
1852:
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1850:
1847:
1845:
1842:
1841:
1838:
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1833:
1828:
1827:
1826:
1823:
1821:
1818:
1816:
1815:
1810:
1807:
1804:
1800:
1797:
1792:
1791:
1790:
1787:
1784:
1781:
1779:
1778:
1774:
1773:
1770:
1768:
1765:
1760:
1759:
1758:
1755:
1753:
1749:
1746:
1745:
1742:
1740:
1737:
1732:
1731:
1730:
1727:
1725:
1721:
1718:
1716:
1715:
1710:
1707:
1705:
1702:
1697:
1696:
1695:
1692:
1690:
1687:
1685:
1684:
1683:Sementiconcha
1680:
1679:
1676:
1674:
1671:
1666:
1665:
1664:
1661:
1659:
1655:
1652:
1650:
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1618:
1617:
1613:
1612:
1609:
1607:
1604:
1599:
1598:
1597:
1594:
1592:
1591:P. triassicus
1589:
1587:
1586:
1582:
1581:
1578:
1576:
1573:
1568:
1567:
1566:
1563:
1561:
1558:
1557:
1554:
1552:
1549:
1544:
1543:
1542:
1539:
1537:
1536:N. laevigatus
1534:
1532:
1531:
1526:
1523:
1520:
1517:
1512:
1511:
1510:
1507:
1505:
1501:
1498:
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1469:
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1464:
1462:
1458:
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1452:
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1442:
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1429:
1426:
1423:
1421:
1420:
1416:
1415:
1411:
1408:
1405:
1402:
1399:
1396:
1393:
1392:
1389:
1387:
1382:
1377:Heteroconchia
1370:
1368:
1365:
1360:
1359:
1358:
1355:
1352:
1349:
1347:
1346:
1342:
1341:
1338:
1336:
1333:
1328:
1327:
1326:
1323:
1321:
1318:
1316:
1315:
1311:
1310:
1307:
1305:
1302:
1297:
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1283:
1281:
1280:
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1275:
1272:
1269:
1267:
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1255:
1250:
1249:
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1242:
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1231:
1228:
1226:
1223:
1218:
1217:
1216:
1213:
1211:
1208:
1207:
1204:
1202:
1199:
1194:
1193:
1192:
1189:
1187:
1184:
1182:
1181:
1180:Leptochondria
1176:
1173:
1171:
1168:
1163:
1162:
1161:
1158:
1156:
1152:
1149:
1148:
1145:
1143:
1140:
1135:
1134:
1133:
1130:
1128:
1125:
1124:
1121:
1118:
1116:
1115:Pseudomonotis
1111:
1108:
1103:
1102:
1101:
1098:
1096:
1093:
1092:
1089:
1087:
1084:
1079:
1078:
1077:
1074:
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1069:
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1066:
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1052:
1047:
1046:
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1040:
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1033:
1031:
1028:
1023:
1022:
1021:
1018:
1016:
1012:
1009:
1007:
1006:
1001:
997:
994:
991:
988:
985:
982:
979:
978:
975:
973:
968:
963:Pteriomorphia
960:
958:
957:Heteroconchia
954:
953:Pteriomorphia
950:
945:
942:
938:
921:
918:
916:
913:
911:
908:
906:
903:
900:
899:Navajo Nation
897:
894:
892:
889:
887:
884:
882:
879:
878:
877:
871:
868:
865:
862:
859:
856:
853:
850:
847:
846:Paradox Basin
844:
842:
839:
837:
834:
832:
829:
826:
823:
820:
817:
814:
811:
810:
809:
803:
799:
795:
791:
787:
783:
777:
773:
769:
765:
761:
757:
752:
740:
737:
734:
731:
728:
727:
723:
721:(AZ, NV, UT*)
720:
717:
714:
711:
708:
705:
702:
699:
696:
693:
692:
691:
684:
683:own formation
680:
677:
676:
675:
669:
666:
663:
662:Torrey Member
660:
657:
653:
650:
647:
644:
641:
638:
637:
636:
630:
629:Sinbad Valley
626:
625:Castle Valley
622:
619:
616:
613:
610:
607:
604:
600:
596:
593:
592:
591:
588:
579:
577:
573:
570:beds and the
569:
564:
562:
558:
554:
553:Paradox Basin
548:
546:
542:
538:
534:
529:
525:
521:
517:
513:
506:
502:
498:
489:
485:
482:
477:
474:
472:
468:
464:
460:
459:type locality
452:
447:
438:
436:
432:
428:
424:
420:
416:
412:
408:
404:
400:
396:
392:
388:
384:
380:
373:
368:
339:
311:
301:
297:
293:
289:
285:
282:Moenkopi Wash
281:
277:
272:
269:
268:United States
266:
263:
259:
256:
253:Southwestern
251:
248:Northwestern
246:
241:
238:East-central
234:
230:
226:
221:
193:
191:
187:
182:
179:
176:
172:
169:
166:
162:
157:
154:
151:
147:
144:
141:
137:
133:
129:
126:
123:
119:
112:
107:
101:
96:
91:
86:
81:
76:
71:
66:
61:
56:
51:
46:
36:
32:
27:
22:
5289:Pioche Shale
5087:
3902:
3836:
3595:Pierre Shale
3565:Mancos Shale
3495:Dakota Group
2844:
2813:
2809:
2792:
2788:
2765:
2761:
2740:
2736:
2719:
2715:
2703:. Retrieved
2698:
2694:
2678:
2665:(1): 21–33.
2662:
2658:
2646:. Retrieved
2641:
2637:
2618:. Retrieved
2613:
2609:
2590:. Retrieved
2575:
2552:
2543:
2539:
2528:, retrieved
2523:
2493:cite journal
2472:
2468:
2407:
2395:
2383:
2356:
2344:
2332:
2308:
2281:
2274:Stewart 1959
2269:
2257:
2245:
2233:
2221:
2209:
2202:Gregory 1917
2197:
2185:
2156:
2119:
2113:
2103:
2097:
2093:Ammorhynchus
2091:
2082:
2076:
2070:
2064:
2058:
2019:
2017:
2012:
1992:
1983:
1973:
1966:
1959:
1952:
1940:
1928:Please help
1923:verification
1920:
1890:
1871:
1867:
1843:
1819:
1812:
1802:
1801:Assigned to
1782:
1775:
1751:
1747:
1723:
1719:
1712:
1688:
1681:
1657:
1653:
1646:
1621:
1614:
1590:
1583:
1559:
1535:
1530:Neoschizodus
1528:
1503:
1499:
1492:
1483:thaynesianus
1481:Neoschizodus
1479:
1460:
1456:
1449:
1424:
1417:
1386:Heteroconchs
1384:
1350:
1343:
1319:
1312:
1288:
1284:
1279:Parallelodon
1277:
1268:homevalensis
1264:
1260:
1240:
1233:
1209:
1185:
1178:
1154:
1150:
1126:
1113:
1112:The Anisian
1094:
1071:E. venetiana
1070:
1063:
1038:
1014:
1010:
1003:
972:Pteriomorphs
970:
934:
875:
807:
738:
732:
724:
718:
712:
706:
701:Moqui Member
700:
694:
689:
678:
673:
667:
661:
651:
645:
639:
634:
620:
614:
608:
594:
589:
585:
565:
549:
528:Capitol Reef
522:, with some
509:
501:Chimney Rock
486:
478:
475:
463:Grand Canyon
456:
409:and western
378:
376:
295:Year defined
274:Type section
265:Southwestern
4617:Tremadocian
4385:Tournaisian
3575:Mowry Shale
3530:Juana Lopez
3244:D2 Sequence
2967:Pleistocene
2286:Blakey 1974
2110:dicynodonts
2089:rhynchosaur
2084:Cosgriffius
2072:Wellesaurus
2043:coelacanths
1902:Vertebrates
1891:U. borealis
1752:sandbergeri
1585:Permophorus
1345:Pernopecten
1186:L. nuetzeli
1155:multiformis
1065:Eumorphotis
901:Tribal Park
870:Uinta Basin
819:Great Basin
492:Description
425:, this red
393:, northern
387:U.S. states
215: /
203:111°29′20″W
190:Coordinates
5351:Categories
4727:Guzhangian
4035:Cisuralian
3066:Aquitanian
2816:(3): 211.
2509:References
2412:Lucas 2021
2388:Lucas 2017
2349:Lucas 2017
2337:Lucas 2017
2250:McKee 1951
2178:Lucas 2017
2051:amphibians
1956:newspapers
1803:Unicaridum
1777:Unicaridum
1724:orientalis
1714:Trigonodus
1314:Promyalina
1266:Promytilus
1261:"Modiolus"
1095:E. ericius
1039:B. costata
1015:exporrecta
1005:Bakevellia
557:anticlines
533:Cedar Mesa
405:, eastern
403:California
391:New Mexico
250:New Mexico
200:35°55′05″N
4666:Furongian
4485:Famennian
3996:Lopingian
3856:Olenekian
3293:Paleocene
3164:Oligocene
3043:Messinian
2648:24 August
2644:: 229–240
2616:: 149–158
2190:Ward 1901
2149:Footnotes
1814:Unionites
1616:Pleuromya
1494:Myoconcha
1461:balatonis
1451:Heminajas
1406:Material
1400:Location
1289:beyrichii
992:Material
986:Location
941:Olenekian
821:province*
568:Paleozoic
561:synclines
524:limestone
512:sandstone
427:sandstone
279:Named for
243:Southern
231:Northern
168:Sandstone
159:Lithology
139:Underlies
131:Sub-units
4885:Siderian
4718:Series 3
4675:Stage 10
4257:Gzhelian
4044:Asselian
3173:Chattian
3007:Zanclean
2998:Pliocene
2892:Colorado
2671:40024381
2573:(1917).
2485:Archived
2132:See also
2078:Vigilius
2057:include
2047:lungfish
2036:hybodont
1986:May 2020
1872:borealis
1648:Protopis
1622:P. prima
1397:Species
1235:Modiolus
1117:beneckei
983:Species
937:bivalves
931:Bivalves
758:through
756:Jurassic
686:Arizona.
537:Woodside
516:mudstone
411:Colorado
287:Named by
255:Colorado
184:Location
149:Overlies
4691:Paibian
3811:Anisian
3034:Miocene
2592:8 April
1970:scholar
1658:waageni
1419:Arcomya
1412:Images
1403:Member
998:Images
989:Member
804:, Utah.
760:Permian
582:Members
541:Thaynes
526:in the
453:(1914).
395:Arizona
261:Country
233:Arizona
164:Primary
4962:Nevada
4847:Tonian
4585:Middle
3872:Induan
3802:Middle
3698:Middle
3227:Eocene
2768:: 12.
2705:26 May
2669:
2620:26 May
2583:
2559:
2530:26 May
2087:. The
2081:, and
2045:, and
2039:sharks
1972:
1965:
1958:
1951:
1943:
1409:Notes
1394:Genus
995:Notes
980:Genus
603:gypsum
543:, and
518:, and
399:Nevada
240:Nevada
228:Region
4608:Lower
4564:Upper
4476:Upper
3847:Lower
3784:Upper
3736:Lower
3665:Upper
3629:Lower
3463:Upper
2691:(PDF)
2667:JSTOR
2634:(PDF)
2606:(PDF)
2520:(PDF)
2032:basal
1977:JSTOR
1963:books
1656:aff.
1504:plana
1287:aff.
926:Fauna
741:(AZ*)
703:(AZ*)
697:(AZ*)
520:shale
415:group
381:is a
178:Shale
174:Other
2707:2020
2701:: 85
2650:2021
2622:2020
2594:2021
2581:ISBN
2557:ISBN
2532:2020
2499:link
2118:and
2026:and
1949:news
1870:cf.
1785:sp.
1750:cf.
1722:cf.
1502:cf.
1459:cf.
1427:sp.
1353:sp.
1243:sp.
1153:cf.
1013:cf.
774:and
768:Utah
754:The
735:(AZ)
421:and
407:Utah
377:The
298:1901
290:Ward
245:Utah
121:Type
45:PreꞒ
4960:of
2890:of
2818:doi
2797:doi
2770:doi
2766:691
2745:doi
2724:doi
2544:104
2477:doi
1932:by
1868:U.?
1783:U.?
1654:P.?
1457:H.?
1425:A.?
1351:P.?
1285:P.?
503:at
389:of
5353::
5317:pЄ
5108:Pz
5059:Tr
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4982:Cz
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3154:Pe
2948:Cz
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2814:58
2812:.
2793:12
2791:.
2787:.
2760:.
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2741:43
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2720:43
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2697:.
2693:.
2675:*
2663:22
2661:.
2642:72
2640:.
2636:.
2614:68
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2608:.
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2495:}}
2491:{{
2483:.
2473:11
2471:.
2467:.
2431:^
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2368:^
2317:^
2293:^
2168:^
2128:.
2075:,
2069:,
2063:,
2041:,
1748:T.
1720:T.
1500:M.
1485:.
1241:M.
1151:E.
1011:B.
627:,
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547:.
539:,
514:,
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95:Pg
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5326:♇
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5170:⁋
5161:C
5118:P
5030:J
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1974:·
1967:·
1960:·
1953:·
1926:.
872:*
866:*
860:*
854:*
848:*
827:*
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100:N
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85:J
80:T
75:P
70:C
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60:S
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50:Ꞓ
23:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
