Knowledge

Mancos Shale

Source 📝

971: 401: 337: 511: 309: 257: 492: 957: 892: 116: 344: 316: 463:
and mudstones of the Dakota and in its upper part grades into and intertongues with the Mesaverde Group. The shale tongues typically have sharp basal contacts and gradational upper contacts. Whereas in the plains east of the Rocky Mountains certain mappable marine shales are identified as formations
3672: 2817: 2284: 1788: 891: 1096:...that all divisions of the Colorado group (Mancos shale) as described in southern Colorado, except the Fort Hays limestone and the Apishapa shale, can be recognized in northern New Mexico. 3679: 2824: 1282:"Stratigraphic and time-stratigraphic cross sections of Phanerozoic rocks along line A-A', Uinta and Piceance basin area-Eagle basin, Colorado, to eastern Basin-and-Range area, Utah" 2291: 2252: 1795: 3230: 3063: 2071: 3367: 3266: 3190: 2247: 1981: 2963: 2557: 3288: 3170: 3068: 2108: 2018: 2006: 1753: 3415: 2968: 2953: 2618: 2434: 2354: 2180: 994: 3395: 3240: 3175: 3038: 2516: 2225: 1976: 3293: 3003: 2973: 2414: 2128: 1971: 1925: 1889: 989: 3512: 3210: 3165: 3098: 2484: 2215: 2086: 1004: 984: 3766: 3665: 3517: 3472: 3445: 3410: 3400: 3308: 3093: 3058: 3013: 2983: 2399: 2081: 3636: 3631: 3609: 3573: 3283: 3278: 3200: 3180: 3160: 3073: 3033: 2988: 2978: 2896: 2891: 2764: 2759: 1312:"Depositional controls on the late Campanian Sego Sandstone and implications for associated coal-forming environments in the Uinta and Piceance basins" 3816: 3303: 3205: 2810: 2429: 2394: 2091: 2001: 999: 483:
region. As such, various units of the Colorado Group are recognized within the Mancos in those areas where their distinct facies can be recognized.
3740: 2595: 2590: 2459: 2277: 1781: 1368:"Surface and subsurface stratigraphy of the Burro Canyon Formation, Dakota Sandstone, and intertongued Mancos Shale of the Chama Basin, New Mexico" 846: 3811: 1402:"Stratigraphy of the Cretaceous rocks and the Tertiary Ojo Alamo Sandstone, Navajo and Hopi Indian Reservations, Arizona, New Mexico, and Utah" 1191: 2118: 3861: 1746: 1249:"Cretaceous and Tertiary formations of the Book Cliffs, Carbon, Emery, and Grand Counties, Utah, and Garfield and Mesa Counties, Colorado" 1222:"Burial and thermal history of the Paradox Basin, Utah and Colorado, and petroleum potential of the Middle Pennsylvanian Paradox Basin" 308: 901:
Tununk Member of the Mancos Shale below the capping Ferron Sandstone Member. West side of the San Rafael Swell, Emery County, Utah.
3881: 1739: 1121: 926:
area, defining it as all marine shale between the Dakota and the Mesaverde. It was subsequently traced into Utah and New Mexico.
929:
During their work in New Mexico in 1924, J.B. Reeside, Jr., and F.H. Knowlton found that the Mancos Shale could be divided into
193: 3876: 336: 1137: 3866: 1459: 550:
with other formations. The subunits and intertonguing formations (in italics) in each basin, in stratigraphic order, are:
3871: 1077: 898: 3821: 1686: 1656: 937:
further east. By 1944, Rankin had concluded that most of the formations of the Colorado Group could be identified as
472:), correlated deposits within the distribution of the Mancos are named as tongues of the greater Mancos Formation. 388:
The Mancos Shale was first described by Cross and Purington in 1899 and was named for exposures near the town of
1367: 1122:"Lithostratigraphic and biostratigraphic framework for the Mancos Shale (Late Cenomanian to Middle Turonian)" 3856: 186: 3851: 3048: 2374: 1341:"Geology and oil possibilites of the eastern side of the San Juan basin, Rio Arriba County, New Mexico" 515: 1366:
Owen, Donald E.; Forgas, Angelique M.; Miller, Shawn A.; Stelly, Ryan J.; Owen, Donald E. Jr. (2005).
3831: 2464: 757: 3841: 3836: 3826: 3318: 1966: 523: 378: 272: 3846: 3122: 2494: 2474: 2148: 1162:"Geologic map of the Tierra Amarilla quadrangle, Rio Arriba County, New Mexico, with description" 1107: 810: 416: 1722: 1057: 2511: 1556:
Lee, Willis Thomson (1912). "Coal fields of Grand Mesa and the West Elk Mountains, Colorado".
3782: 3195: 2359: 2200: 2143: 1996: 1961: 1431:"Stratigraphic terminology of the Dakota Sandstone and Mancos Shale, west-central New Mexico" 1026: 976: 907: 382: 1529:"The Frontier Formation and associated rocks of northeastern Utah and northwestern Colorado" 400: 3728: 3088: 3043: 3028: 2404: 2205: 2195: 1986: 1528: 1501: 1221: 945:
by C.E. Jamison in 1911, and is sometimes given group rank in New Mexico and Utah as well.
942: 693: 510: 404: 8: 3313: 3250: 3078: 2886: 2754: 2737: 2693: 2384: 2379: 2210: 962: 919: 610: 449: 149: 1505: 3138: 2993: 2926: 2777: 2711: 2600: 2552: 2454: 2409: 2230: 2220: 2138: 2133: 2054: 1991: 1948: 1930: 1894: 1762: 1460:"Contributions to mid-Cretaceous paleontology and stratigraphy of New Mexico — part II" 938: 855: 634: 602: 531: 280: 129: 3614: 3592: 3578: 3556: 3549: 3499: 3467: 3459: 3220: 3185: 3053: 2998: 2633: 2623: 2585: 2562: 2489: 2444: 2424: 2364: 2185: 2158: 2113: 2076: 1849: 1133: 465: 1281: 1192:"Geologic Map of the Captain Davis Mountain Quadrangle, Santa Fe County, New Mexico" 1161: 491: 3750: 3482: 3438: 3390: 3323: 3235: 3215: 3143: 3023: 3008: 2948: 2931: 2666: 2628: 2580: 2547: 2503: 2479: 2344: 2337: 2190: 2175: 1718: 1635: 1602: 1573: 1565: 1536: 1509: 1438: 1409: 1340: 1319: 1260: 1229: 1053: 930: 911: 800: 676: 543: 527: 389: 295: 276: 3450: 3405: 3380: 3298: 3225: 3155: 3083: 3018: 2958: 2676: 2572: 2419: 2153: 2066: 1731: 1199:
New Mexico Bureau of Geology and Mineral Resources Open-file Digital Geologic Map
665: 374: 1029:; Purington, C. W. (1899). "Description of the Telluride quadrangle, Colorado". 3712: 3385: 3350: 3103: 2721: 2706: 2658: 2610: 2539: 2389: 1940: 934: 772: 743: 719: 624: 615: 504: 476: 469: 1078:"Stratigraphy of the Colorado Group, Upper Cretaceous, in Northern New Mexico" 3805: 3113: 2879: 2349: 2123: 653: 639: 431: 262: 208: 195: 74: 27: 2469: 2369: 1685:
Zakis, William (1952). "Table Mesa Oil Field San Juan County, New Mexico".
1492:
Walton, P.T. (1944). "Geology of the Cretaceous of the Uinta basin, Utah".
1044:
Weimar, R.J. (1960). "Upper Cretaceous Stratigraphy, Rocky Mountain Area".
915: 833: 547: 480: 456: 445: 441: 159: 3703: 3694: 3491: 3259: 2839: 2449: 2306: 1841: 1810: 871: 863: 581: 542:
The Mancos is a diverse unit, with dozens of named subunits in different
500: 496: 49: 3601: 3429: 2909: 2328: 1832: 1513: 923: 420: 415:
that accumulated in offshore and marine environments of the Cretaceous
236: 115: 94: 59: 1578: 1400:
O'Sullivan, R.B.; Repenning, C.A.; Beaumont, E.C.; Page, H.G. (1972).
3540: 3359: 2870: 2850: 2730: 2167: 2038: 2027: 1917: 460: 435: 428: 99: 43: 35: 3759: 3531: 3341: 3131: 2918: 2647: 2530: 2317: 2047: 1881: 1872: 1821: 1766: 1709:
Roberto, Sarmiento (1957). "Microfossil Zonation of Mancos Group".
1657:"Geology and Mineral Resources of a Portion of Fremont County, Wyo" 1541: 1443: 1430: 1414: 1401: 1399: 1324: 1311: 232: 89: 84: 69: 64: 54: 1640: 1623: 1607: 1594: 1265: 1248: 3565: 2861: 2685: 1908: 1863: 1569: 1233: 412: 244: 228: 104: 79: 120:
Mancos Shale at its type location just north of Mancos, Colorado
3721: 2746: 2101: 424: 31: 16:
Late Cretaceous geologic formation of the Western United States
3687: 1286:
U.S. Geological Survey Miscellaneous Investigations Series Map
1429:
Landis, Edwin R.; Dane, C.H.; Cobban, William Aubrey (1973).
1166:
New Mexico Bureau of Mines and Mineral Resources Geologic Map
174: 2832: 941:
members of the Mancos Shale as well. The unit was raised to
2299: 1803: 1467:
New Mexico Bureau of Mines & Mineral Resources Circular
240: 1085:
New Mexico Bureau of Mines and Mineral Resources Bulletins
910:
and C.W. Purington in 1899, for outcrops near the town of
918:
nearby. The two geologists also traced the unit into the
1247:
Fisher, D.J.; Erdmann, C.E.; Reeside, J.B. Jr. (1960).
995:
List of fossiliferous stratigraphic units in New Mexico
407:
showing the relationship of the Mancos and Mowry shales
1365: 475:
Thus, the classification broadly corresponds with the
1375:
New Mexico Geological Society Field Conference Series
1345:
U.S. Geological Survey Oil and Gas Investigations Map
990:
List of fossiliferous stratigraphic units in Colorado
1246: 1005:
List of fossiliferous stratigraphic units in Wyoming
985:
List of fossiliferous stratigraphic units in Arizona
952: 1761: 1628:United States Geological Survey Professional Paper 1595:"Oil and gas near Green River, Grand County, Utah" 1406:United States Geological Survey Professional Paper 1253:United States Geological Survey Professional Paper 933:layers corresponding closely to formations of the 922:area. W.T. Lee had traced the unit north into the 1108:"Colorado River Basin Stratigraphy: Mancos Shale" 1000:List of fossiliferous stratigraphic units in Utah 3803: 1428: 1021: 1019: 444:the Mancos Shale fills the interval between the 1688:Geological Symposium of the Four Corners Region 1621: 1189: 1526: 1279: 1025: 3673: 2818: 2285: 1789: 1747: 1622:Reeside, John B. Jr.; Knowlton, F.H. (1924). 1527:Molenaar, Cornelius M.; Wilson, B.W. (1990). 1494:Bulletin of the Geological Society of America 1016: 1220:Nuccio, Vito F.; Condon, Stephen M. (1996). 1219: 1190:Lisenbee, Alvis; Maynard, Steve (May 2001). 1723:10.1306/0BDA5927-16BD-11D7-8645000102C1865D 1305: 1303: 1213: 1126:Geological Society of America Special Paper 1058:10.1306/0BDA5F6F-16BD-11D7-8645000102C1865D 883: 434:, approximately from 95 million years ago ( 3688:Precambrian chronostratigraphy of Colorado 3680: 3666: 2825: 2811: 2292: 2278: 1796: 1782: 1754: 1740: 1159: 455:The lower marine Mancos Shale conformably 114: 1639: 1606: 1577: 1540: 1442: 1413: 1323: 1264: 1240: 1101: 3817:Upper Cretaceous Series of North America 2833:Paleozoic chronostratigraphy of Colorado 1599:United States Geological Survey Bulletin 1558:United States Geological Survey Bulletin 1533:United States Geological Survey Bulletin 1435:United States Geological Survey Bulletin 1316:United States Geological Survey Bulletin 1309: 1300: 1226:United States Geological Survey Bulletin 1119: 1071: 1069: 1067: 509: 490: 399: 2300:Mesozoic chronostratigraphy of Colorado 1804:Cenozoic chronostratigraphy of Colorado 1708: 1654: 419:. The Mancos was deposited during the 3804: 1592: 1491: 1359: 1075: 1043: 3812:Shale formations of the United States 3661: 2806: 2273: 1777: 1735: 1684: 1280:Johnson, S.Y.; Johnson, R.C. (1991). 1064: 1031:United States Geological Survey Atlas 2336: 1457: 1338: 906:The Mancos Shale was first named by 537: 343: 315: 3862:Cretaceous formations of New Mexico 1555: 1087:(20). New Mexico School of Mines: 5 820:Twowells Tongue of Dakota Formation 13: 1661:Wyoming Geological Survey Bulletin 778:Paguate Tongue of Dakota Formation 14: 3893: 1160:Landis, E.R.; Dane, C.H. (1967). 969: 955: 890: 342: 335: 323:Mancos Shale (the United States) 314: 307: 255: 47: 2253:Independence Mountain Formation 1702: 1678: 1648: 1615: 1586: 1549: 1520: 1485: 1451: 1422: 1393: 1332: 1273: 1110:United States Geological Survey 3882:Geology of the Rocky Mountains 1183: 1153: 1113: 1037: 599:Cooper Arroyo Sandstone Member 499:oil and gas fields within the 486: 1: 3877:Cretaceous geology of Wyoming 3231:Morgan Round Valley Formation 1408:. Professional Paper. 521-E. 1010: 326:Show map of the United States 139: 3064:South Canyon Creek Formation 281:San Juan Mountains Provinces 7: 3867:Cretaceous geology of Texas 1310:Franczyk, Karen J. (1989). 1076:Rankin, Charles H. (1944). 948: 532:San Juan Mountains Province 10: 3898: 3872:Cretaceous geology of Utah 3049:Sangre de Cristo Formation 2072:Central Colorado Volcanics 516:Capitol Reef National Park 395: 3758: 3749: 3720: 3711: 3702: 3693: 3657: 3600: 3591: 3564: 3548: 3539: 3530: 3490: 3481: 3458: 3437: 3428: 3368:Williams Canyon Formation 3358: 3349: 3340: 3274: 3267:Williams Canyon Formation 3258: 3249: 3191:Jacque Mountain Formation 3130: 3121: 3112: 2917: 2908: 2878: 2869: 2860: 2849: 2838: 2802: 2745: 2729: 2720: 2684: 2675: 2657: 2646: 2609: 2571: 2538: 2529: 2502: 2465:Pictured Cliffs Formation 2327: 2316: 2305: 2269: 2248:Gravel Mountain Formation 2166: 2100: 2046: 2037: 2026: 1939: 1916: 1907: 1880: 1871: 1862: 1840: 1831: 1820: 1809: 1773: 763:Niobrara Calcareous Shale 758:Crevasse Canyon Formation 528:Colorado Plateau Province 522:The Mancos occurs in the 514:Mancos Shale badlands in 417:North American Inland Sea 411:The unit is dominated by 301: 291: 286: 268: 250: 224: 185: 180: 170: 165: 155: 145: 135: 125: 113: 26: 21: 3822:Cretaceous United States 3319:Ste. Genevieve Formation 1982:Martins Canyon Formation 1967:Cedar Mountain Formation 1458:Hook, Steven C. (1983). 884:History of investigation 824:Whitewater Arroyo Tongue 593:El Vado Sandstone Member 524:Basin and Range Province 2964:Council Grove Formation 2558:Ralston Creek Formation 2495:Williams Fork Formation 2475:Point Lookout Formation 2149:Poison Canyon Formation 1120:Kirkland, J.I. (1991). 811:Tres Hermanos Formation 351:Mancos Shale (Colorado) 3289:Headscrabble Formation 3171:Eagle Valley Evaporite 3069:Stone Corral Formation 2512:Burro Canyon Formation 2109:Blanco Basin Formation 2019:Grouse Mountain Basalt 2007:Wagon Tongue Formation 1655:Jamison, C.E. (1911). 1255:. Professional Paper. 519: 507: 479:classification of the 408: 3783:Uncompahgre Formation 3416:Pinyon Park Formation 3196:Kansas City Formation 2969:Crestone Conglomerate 2954:Cedar Hills Formation 2619:Glen Canyon Formation 2435:Lion Canyon Formation 2360:Cliff House Sandstone 2355:Castle Gate Formation 2201:Middle Park Formation 2181:Arapahoe Conglomerate 2144:Green River Formation 1997:Troublesome Formation 1962:Browns Park Formation 1593:Lupton, C.T. (1914). 977:Earth sciences portal 908:Charles Whitman Cross 756:Dilco Coal Member of 513: 494: 403: 383:Western United States 3729:Uinta Mountain Group 3396:Kinderhook Formation 3241:Sharpsdale Formation 3176:Glen Eyrie Formation 3089:Wellington Formation 3044:Phosphoria Formation 3039:Owl Canyon Formation 3029:Minnekahta Formation 2517:Horsetooth Formation 2226:South Park Formation 2206:Nacimiento Formation 2196:Fort Union Formation 1987:North Park Formation 1977:Los Pintos Formation 1624:"Professional Paper" 694:Castlegate Sandstone 405:Stratigraphic column 354:Show map of Colorado 3857:Cretaceous Colorado 3314:St. Louis Formation 3294:Leadville Formation 3079:Wabaunsee Formation 3004:Ingleside Formation 2974:Day Creek Formation 2887:Chugwater Formation 2755:Chugwater Formation 2738:Chugwater Formation 2694:Chugwater Formation 2415:Kremmling Formation 2385:Fruitland Formation 2380:Fox Hills Formation 2375:Fort Hays Limestone 2211:Ojo Alamo Formation 2129:Echo Park Formation 1972:Flat Tops Volcanics 1926:Dry Union Formation 1890:Dry Union Formation 1506:1944GSAB...55...91W 1339:Dane, C.H. (1948). 963:Paleontology portal 920:Telluride, Colorado 860:Middle shale member 769:Greenhorn Limestone 710:Greenhorn Limestone 704:Northeast and east 662:West and northwest 644:Greenhorn Limestone 611:Greenhorn Limestone 571:Middle shale member 377:(Upper Cretaceous) 205: /  150:Mesaverde Formation 28:Stratigraphic range 3852:Cretaceous Arizona 3513:Arbuckle Formation 3211:Marmaton Formation 3166:Cherokee Formation 3139:Fountain Formation 3099:Wolfcamp Formation 2994:Glorieta Formation 2927:Fountain Formation 2778:Moenkopi Formation 2712:Moenkopi Formation 2601:Sundance Formation 2553:Morrison Formation 2485:Trinidad Formation 2455:Niobrara Formation 2410:Kirtland Formation 2231:Washakie Formation 2221:San Jose Formation 2216:Raton Conglomerate 2139:Huerfano Formation 2134:Farisita Formation 2087:Pinnacle Formation 2055:Arikaree Formation 1992:Santa Fe Formation 1949:Arikaree Formation 1931:Ogallala Formation 1895:Ogallala Formation 1763:Chronostratigraphy 1514:10.1130/GSAB-55-91 939:lithostratigraphic 868:Lower shale member 856:Frontier Sandstone 852:Upper shale member 842:Anchor Mine Tongue 731:Anchor Mine Tongue 707:Juana Lopez Member 699:Juana Lopez Member 635:Niobrara Formation 603:Juana Lopez Member 574:Lower shale member 565:Upper shale member 520: 508: 409: 379:geologic formation 209:37.353°N 108.297°W 130:Geologic formation 3799: 3798: 3795: 3794: 3791: 3790: 3778: 3777: 3774: 3773: 3767:Owiyukuts Complex 3736: 3735: 3653: 3652: 3649: 3648: 3645: 3644: 3627: 3626: 3623: 3622: 3615:Sawatch Formation 3587: 3586: 3579:Sawatch Formation 3557:Dotsero Formation 3526: 3525: 3518:Manitou Formation 3508: 3507: 3500:Dotsero Formation 3473:Simpson Formation 3468:Harding Sandstone 3446:Fremont Limestone 3424: 3423: 3411:Parting Formation 3401:Misener Formation 3376: 3375: 3336: 3335: 3332: 3331: 3309:Spergen Formation 3221:Minturn Formation 3186:Hermosa Formation 3151: 3150: 3094:White Horse Group 3059:Shawnee Formation 3054:Satanka Formation 3014:Lansing Formation 2999:Hermosa Formation 2984:Forelle Formation 2944: 2943: 2940: 2939: 2904: 2903: 2798: 2797: 2794: 2793: 2790: 2789: 2786: 2785: 2773: 2772: 2702: 2701: 2642: 2641: 2634:Wingate Sandstone 2624:Kayenta Formation 2586:Entrada Formation 2563:Wanakah Formation 2525: 2524: 2490:Vermejo Formation 2445:Menefee Formation 2425:Laramie Formation 2400:Hygiene Formation 2265: 2264: 2261: 2260: 2243: 2242: 2239: 2238: 2186:Bridger Formation 2159:Wasatch Formation 2114:Cuchara Formation 2082:Conejos Formation 2077:Chadron Formation 2062: 2061: 2015: 2014: 1957: 1956: 1903: 1902: 1858: 1857: 1850:Alamosa Formation 1139:978-0-8137-2260-3 881: 880: 816:Rio Salado Tongue 596:Middle shale unit 590:Upper shale unite 568:Hopi Sandy Member 544:structural basins 538:Structural basins 495:Mancos Shale and 459:with terrestrial 442:Stratigraphically 363: 362: 3889: 3832:Cenomanian Stage 3756: 3755: 3718: 3717: 3709: 3708: 3700: 3699: 3682: 3675: 3668: 3659: 3658: 3637:Tintic Formation 3632:Reagan Formation 3610:Lodore Formation 3598: 3597: 3574:Lodore Formation 3546: 3545: 3537: 3536: 3488: 3487: 3435: 3434: 3391:Elbert Formation 3356: 3355: 3347: 3346: 3324:Warsaw Formation 3284:Gilman Formation 3279:Beulah Formation 3256: 3255: 3236:Morrow Formation 3216:Maroon Formation 3201:Kerber Formation 3181:Gothic Formation 3161:Belden Formation 3144:Madera Formation 3128: 3127: 3119: 3118: 3074:Sumner Formation 3034:Opeche Formation 3024:Maroon Formation 3009:Kaibab Limestone 2989:Glendo Formation 2979:Falcon Formation 2949:Blaine Formation 2932:Madera Formation 2915: 2914: 2897:Taloga Formation 2892:Lykins Formation 2876: 2875: 2867: 2866: 2858: 2857: 2853: 2847: 2846: 2842: 2827: 2820: 2813: 2804: 2803: 2765:Taloga Formation 2760:Lykins Formation 2727: 2726: 2682: 2681: 2667:Chinle Formation 2655: 2654: 2650: 2629:Navajo Formation 2581:Carmel Formation 2548:Curtis Formation 2536: 2535: 2480:Smoky Hill Chalk 2365:Codell Sandstone 2345:Benton Formation 2334: 2333: 2325: 2324: 2320: 2314: 2313: 2309: 2294: 2287: 2280: 2271: 2270: 2191:Denver Formation 2176:Animas Formation 2044: 2043: 2035: 2034: 2030: 1914: 1913: 1878: 1877: 1869: 1868: 1838: 1837: 1829: 1828: 1824: 1818: 1817: 1813: 1798: 1791: 1784: 1775: 1774: 1756: 1749: 1742: 1733: 1732: 1727: 1726: 1706: 1700: 1699: 1697: 1695: 1682: 1676: 1675: 1673: 1671: 1652: 1646: 1645: 1643: 1619: 1613: 1612: 1610: 1590: 1584: 1583: 1581: 1553: 1547: 1546: 1544: 1524: 1518: 1517: 1489: 1483: 1482: 1480: 1478: 1464: 1455: 1449: 1448: 1446: 1426: 1420: 1419: 1417: 1397: 1391: 1390: 1388: 1386: 1372: 1363: 1357: 1356: 1354: 1352: 1336: 1330: 1329: 1327: 1307: 1298: 1297: 1295: 1293: 1277: 1271: 1270: 1268: 1244: 1238: 1237: 1217: 1211: 1210: 1208: 1206: 1196: 1187: 1181: 1180: 1178: 1176: 1157: 1151: 1150: 1148: 1146: 1117: 1111: 1105: 1099: 1098: 1093: 1092: 1082: 1073: 1062: 1061: 1041: 1035: 1034: 1023: 979: 974: 973: 972: 965: 960: 959: 958: 931:biostratigraphic 912:Mancos, Colorado 894: 801:Gallup Sandstone 782:Clay Mesa Tongue 677:Ferron Sandstone 607:Lower shale unit 558:Black Mesa Basin 553: 552: 518:, southern Utah. 390:Mancos, Colorado 355: 346: 345: 339: 327: 318: 317: 311: 296:Mancos, Colorado 277:Colorado Plateau 261: 259: 258: 220: 219: 217: 216: 215: 214:37.353; -108.297 210: 206: 203: 202: 201: 198: 118: 109: 46: 19: 18: 3897: 3896: 3892: 3891: 3890: 3888: 3887: 3886: 3842:Santonian Stage 3837:Coniacian Stage 3827:Campanian Stage 3802: 3801: 3800: 3787: 3770: 3745: 3732: 3689: 3686: 3641: 3619: 3583: 3560: 3522: 3504: 3477: 3454: 3451:Viola Formation 3420: 3406:Ouray Formation 3381:Aneth Formation 3372: 3328: 3304:Osage Formation 3299:Molas Formation 3270: 3245: 3226:Molas Formation 3206:Keyes Formation 3156:Atoka Formation 3147: 3108: 3084:Weber Formation 3019:Lyons Formation 2959:Chase Formation 2936: 2900: 2851: 2840: 2834: 2831: 2782: 2769: 2741: 2716: 2698: 2671: 2648: 2638: 2605: 2567: 2521: 2498: 2430:Lewis Formation 2420:Lance Formation 2395:Greenhorn Shale 2318: 2307: 2301: 2298: 2257: 2235: 2162: 2154:Uinta Formation 2096: 2092:Pitch Formation 2067:Brule Formation 2058: 2028: 2022: 2011: 2002:Trump Formation 1953: 1935: 1899: 1854: 1822: 1811: 1805: 1802: 1769: 1760: 1730: 1707: 1703: 1693: 1691: 1683: 1679: 1669: 1667: 1653: 1649: 1620: 1616: 1591: 1587: 1554: 1550: 1525: 1521: 1490: 1486: 1476: 1474: 1462: 1456: 1452: 1427: 1423: 1398: 1394: 1384: 1382: 1370: 1364: 1360: 1350: 1348: 1337: 1333: 1308: 1301: 1291: 1289: 1278: 1274: 1245: 1241: 1218: 1214: 1204: 1202: 1194: 1188: 1184: 1174: 1172: 1158: 1154: 1144: 1142: 1140: 1118: 1114: 1106: 1102: 1090: 1088: 1080: 1074: 1065: 1042: 1038: 1033:. Vol. 57. 1024: 1017: 1013: 975: 970: 968: 961: 956: 954: 951: 904: 903: 902: 900: 895: 886: 673:Blue Gate Shale 670:Emery Sandstone 540: 489: 398: 375:Late Cretaceous 359: 358: 357: 356: 353: 352: 349: 348: 347: 330: 329: 328: 325: 324: 321: 320: 319: 273:Basin and Range 256: 254: 213: 211: 207: 204: 199: 196: 194: 192: 191: 121: 108: 107: 102: 97: 92: 87: 82: 77: 72: 67: 62: 57: 52: 41: 40: 38: 17: 12: 11: 5: 3895: 3885: 3884: 3879: 3874: 3869: 3864: 3859: 3854: 3849: 3847:Turonian Stage 3844: 3839: 3834: 3829: 3824: 3819: 3814: 3797: 3796: 3793: 3792: 3789: 3788: 3786: 3785: 3779: 3776: 3775: 3772: 3771: 3769: 3764: 3762: 3753: 3747: 3746: 3744: 3743: 3741:Tava Formation 3737: 3734: 3733: 3731: 3726: 3724: 3715: 3706: 3697: 3691: 3690: 3685: 3684: 3677: 3670: 3662: 3655: 3654: 3651: 3650: 3647: 3646: 3643: 3642: 3640: 3639: 3634: 3628: 3625: 3624: 3621: 3620: 3618: 3617: 3612: 3606: 3604: 3595: 3589: 3588: 3585: 3584: 3582: 3581: 3576: 3570: 3568: 3562: 3561: 3559: 3554: 3552: 3543: 3534: 3528: 3527: 3524: 3523: 3521: 3520: 3515: 3509: 3506: 3505: 3503: 3502: 3496: 3494: 3485: 3479: 3478: 3476: 3475: 3470: 3464: 3462: 3456: 3455: 3453: 3448: 3443: 3441: 3432: 3426: 3425: 3422: 3421: 3419: 3418: 3413: 3408: 3403: 3398: 3393: 3388: 3386:Dyer Formation 3383: 3377: 3374: 3373: 3371: 3370: 3364: 3362: 3353: 3344: 3338: 3337: 3334: 3333: 3330: 3329: 3327: 3326: 3321: 3316: 3311: 3306: 3301: 3296: 3291: 3286: 3281: 3275: 3272: 3271: 3269: 3264: 3262: 3253: 3247: 3246: 3244: 3243: 3238: 3233: 3228: 3223: 3218: 3213: 3208: 3203: 3198: 3193: 3188: 3183: 3178: 3173: 3168: 3163: 3158: 3152: 3149: 3148: 3146: 3141: 3136: 3134: 3125: 3116: 3110: 3109: 3107: 3106: 3104:Yeso Formation 3101: 3096: 3091: 3086: 3081: 3076: 3071: 3066: 3061: 3056: 3051: 3046: 3041: 3036: 3031: 3026: 3021: 3016: 3011: 3006: 3001: 2996: 2991: 2986: 2981: 2976: 2971: 2966: 2961: 2956: 2951: 2945: 2942: 2941: 2938: 2937: 2935: 2934: 2929: 2923: 2921: 2912: 2906: 2905: 2902: 2901: 2899: 2894: 2889: 2884: 2882: 2873: 2864: 2855: 2844: 2836: 2835: 2830: 2829: 2822: 2815: 2807: 2800: 2799: 2796: 2795: 2792: 2791: 2788: 2787: 2784: 2783: 2781: 2780: 2774: 2771: 2770: 2768: 2767: 2762: 2757: 2751: 2749: 2743: 2742: 2740: 2735: 2733: 2724: 2718: 2717: 2715: 2714: 2709: 2707:Jelm Formation 2703: 2700: 2699: 2697: 2696: 2690: 2688: 2679: 2673: 2672: 2670: 2669: 2663: 2661: 2652: 2644: 2643: 2640: 2639: 2637: 2636: 2631: 2626: 2621: 2615: 2613: 2607: 2606: 2604: 2603: 2598: 2596:Page Formation 2593: 2591:Garo Formation 2588: 2583: 2577: 2575: 2569: 2568: 2566: 2565: 2560: 2555: 2550: 2544: 2542: 2533: 2527: 2526: 2523: 2522: 2520: 2519: 2514: 2508: 2506: 2500: 2499: 2497: 2492: 2487: 2482: 2477: 2472: 2467: 2462: 2460:Pando Porphyry 2457: 2452: 2447: 2442: 2437: 2432: 2427: 2422: 2417: 2412: 2407: 2402: 2397: 2392: 2390:Graneros Shale 2387: 2382: 2377: 2372: 2367: 2362: 2357: 2352: 2347: 2342: 2340: 2331: 2322: 2311: 2303: 2302: 2297: 2296: 2289: 2282: 2274: 2267: 2266: 2263: 2262: 2259: 2258: 2256: 2255: 2250: 2244: 2241: 2240: 2237: 2236: 2234: 2233: 2228: 2223: 2218: 2213: 2208: 2203: 2198: 2193: 2188: 2183: 2178: 2172: 2170: 2164: 2163: 2161: 2156: 2151: 2146: 2141: 2136: 2131: 2126: 2121: 2116: 2111: 2106: 2104: 2098: 2097: 2095: 2094: 2089: 2084: 2079: 2074: 2069: 2063: 2060: 2059: 2057: 2052: 2050: 2041: 2032: 2024: 2023: 2021: 2016: 2013: 2012: 2010: 2009: 2004: 1999: 1994: 1989: 1984: 1979: 1974: 1969: 1964: 1958: 1955: 1954: 1952: 1951: 1945: 1943: 1937: 1936: 1934: 1933: 1928: 1922: 1920: 1911: 1905: 1904: 1901: 1900: 1898: 1897: 1892: 1886: 1884: 1875: 1866: 1860: 1859: 1856: 1855: 1853: 1852: 1846: 1844: 1835: 1826: 1815: 1807: 1806: 1801: 1800: 1793: 1786: 1778: 1771: 1770: 1759: 1758: 1751: 1744: 1736: 1729: 1728: 1701: 1677: 1647: 1614: 1585: 1548: 1542:10.3133/b1787M 1519: 1484: 1450: 1444:10.3133/b1372J 1421: 1415:10.3133/pp521E 1392: 1358: 1331: 1325:10.3133/b1787F 1299: 1272: 1239: 1228:. 2000-O: O6. 1212: 1182: 1152: 1138: 1112: 1100: 1063: 1036: 1014: 1012: 1009: 1008: 1007: 1002: 997: 992: 987: 981: 980: 966: 950: 947: 935:Colorado Group 914:and along the 897: 896: 889: 888: 887: 885: 882: 879: 878: 877: 876: 875: 874: 869: 866: 861: 858: 853: 850: 847:Sego Sandstone 843: 837: 836: 829: 828: 827: 826: 825: 822: 817: 814: 807: 806:Pescado Tongue 804: 797: 796:D-Cross Tongue 791: 790: 786: 785: 784: 783: 780: 775: 773:Graneros Shale 770: 767: 764: 761: 753: 752:Mulatto Tongue 747: 746: 744:San Juan Basin 739: 738: 737: 736: 735: 732: 729: 723: 722: 720:Piceance Basin 716: 715: 714: 713: 712: 711: 708: 702: 701: 700: 697: 690: 684: 683: 682: 679: 674: 671: 668: 657: 656: 649: 648: 647: 646: 645: 642: 637: 629: 628: 627:(Mancos Group) 625:Estancia Basin 621: 620: 619: 618: 616:Graneros Shale 613: 608: 605: 600: 597: 594: 591: 585: 584: 578: 577: 576: 575: 572: 569: 566: 560: 559: 539: 536: 505:Piceance Basin 488: 485: 477:Colorado Group 397: 394: 361: 360: 350: 341: 340: 334: 333: 332: 331: 322: 313: 312: 306: 305: 304: 303: 302: 299: 298: 293: 289: 288: 284: 283: 270: 266: 265: 252: 248: 247: 226: 222: 221: 189: 183: 182: 178: 177: 172: 168: 167: 163: 162: 157: 153: 152: 147: 143: 142: 137: 133: 132: 127: 123: 122: 119: 111: 110: 103: 98: 93: 88: 83: 78: 73: 68: 63: 58: 53: 48: 24: 23: 15: 9: 6: 4: 3: 2: 3894: 3883: 3880: 3878: 3875: 3873: 3870: 3868: 3865: 3863: 3860: 3858: 3855: 3853: 3850: 3848: 3845: 3843: 3840: 3838: 3835: 3833: 3830: 3828: 3825: 3823: 3820: 3818: 3815: 3813: 3810: 3809: 3807: 3784: 3781: 3780: 3768: 3765: 3763: 3761: 3757: 3754: 3752: 3748: 3742: 3739: 3738: 3730: 3727: 3725: 3723: 3719: 3716: 3714: 3710: 3707: 3705: 3701: 3698: 3696: 3692: 3683: 3678: 3676: 3671: 3669: 3664: 3663: 3660: 3656: 3638: 3635: 3633: 3630: 3629: 3616: 3613: 3611: 3608: 3607: 3605: 3603: 3599: 3596: 3594: 3590: 3580: 3577: 3575: 3572: 3571: 3569: 3567: 3563: 3558: 3555: 3553: 3551: 3547: 3544: 3542: 3538: 3535: 3533: 3529: 3519: 3516: 3514: 3511: 3510: 3501: 3498: 3497: 3495: 3493: 3489: 3486: 3484: 3480: 3474: 3471: 3469: 3466: 3465: 3463: 3461: 3457: 3452: 3449: 3447: 3444: 3442: 3440: 3436: 3433: 3431: 3427: 3417: 3414: 3412: 3409: 3407: 3404: 3402: 3399: 3397: 3394: 3392: 3389: 3387: 3384: 3382: 3379: 3378: 3369: 3366: 3365: 3363: 3361: 3357: 3354: 3352: 3348: 3345: 3343: 3339: 3325: 3322: 3320: 3317: 3315: 3312: 3310: 3307: 3305: 3302: 3300: 3297: 3295: 3292: 3290: 3287: 3285: 3282: 3280: 3277: 3276: 3273: 3268: 3265: 3263: 3261: 3257: 3254: 3252: 3248: 3242: 3239: 3237: 3234: 3232: 3229: 3227: 3224: 3222: 3219: 3217: 3214: 3212: 3209: 3207: 3204: 3202: 3199: 3197: 3194: 3192: 3189: 3187: 3184: 3182: 3179: 3177: 3174: 3172: 3169: 3167: 3164: 3162: 3159: 3157: 3154: 3153: 3145: 3142: 3140: 3137: 3135: 3133: 3129: 3126: 3124: 3120: 3117: 3115: 3111: 3105: 3102: 3100: 3097: 3095: 3092: 3090: 3087: 3085: 3082: 3080: 3077: 3075: 3072: 3070: 3067: 3065: 3062: 3060: 3057: 3055: 3052: 3050: 3047: 3045: 3042: 3040: 3037: 3035: 3032: 3030: 3027: 3025: 3022: 3020: 3017: 3015: 3012: 3010: 3007: 3005: 3002: 3000: 2997: 2995: 2992: 2990: 2987: 2985: 2982: 2980: 2977: 2975: 2972: 2970: 2967: 2965: 2962: 2960: 2957: 2955: 2952: 2950: 2947: 2946: 2933: 2930: 2928: 2925: 2924: 2922: 2920: 2916: 2913: 2911: 2907: 2898: 2895: 2893: 2890: 2888: 2885: 2883: 2881: 2880:Changhsingian 2877: 2874: 2872: 2868: 2865: 2863: 2859: 2856: 2854: 2848: 2845: 2843: 2837: 2828: 2823: 2821: 2816: 2814: 2809: 2808: 2805: 2801: 2779: 2776: 2775: 2766: 2763: 2761: 2758: 2756: 2753: 2752: 2750: 2748: 2744: 2739: 2736: 2734: 2732: 2728: 2725: 2723: 2719: 2713: 2710: 2708: 2705: 2704: 2695: 2692: 2691: 2689: 2687: 2683: 2680: 2678: 2674: 2668: 2665: 2664: 2662: 2660: 2656: 2653: 2651: 2645: 2635: 2632: 2630: 2627: 2625: 2622: 2620: 2617: 2616: 2614: 2612: 2608: 2602: 2599: 2597: 2594: 2592: 2589: 2587: 2584: 2582: 2579: 2578: 2576: 2574: 2570: 2564: 2561: 2559: 2556: 2554: 2551: 2549: 2546: 2545: 2543: 2541: 2537: 2534: 2532: 2528: 2518: 2515: 2513: 2510: 2509: 2507: 2505: 2501: 2496: 2493: 2491: 2488: 2486: 2483: 2481: 2478: 2476: 2473: 2471: 2468: 2466: 2463: 2461: 2458: 2456: 2453: 2451: 2448: 2446: 2443: 2441: 2438: 2436: 2433: 2431: 2428: 2426: 2423: 2421: 2418: 2416: 2413: 2411: 2408: 2406: 2403: 2401: 2398: 2396: 2393: 2391: 2388: 2386: 2383: 2381: 2378: 2376: 2373: 2371: 2368: 2366: 2363: 2361: 2358: 2356: 2353: 2351: 2350:Carlile Shale 2348: 2346: 2343: 2341: 2339: 2335: 2332: 2330: 2326: 2323: 2321: 2315: 2312: 2310: 2304: 2295: 2290: 2288: 2283: 2281: 2276: 2275: 2272: 2268: 2254: 2251: 2249: 2246: 2245: 2232: 2229: 2227: 2224: 2222: 2219: 2217: 2214: 2212: 2209: 2207: 2204: 2202: 2199: 2197: 2194: 2192: 2189: 2187: 2184: 2182: 2179: 2177: 2174: 2173: 2171: 2169: 2165: 2160: 2157: 2155: 2152: 2150: 2147: 2145: 2142: 2140: 2137: 2135: 2132: 2130: 2127: 2125: 2124:Dawson Arkose 2122: 2120: 2117: 2115: 2112: 2110: 2107: 2105: 2103: 2099: 2093: 2090: 2088: 2085: 2083: 2080: 2078: 2075: 2073: 2070: 2068: 2065: 2064: 2056: 2053: 2051: 2049: 2045: 2042: 2040: 2036: 2033: 2031: 2025: 2020: 2017: 2008: 2005: 2003: 2000: 1998: 1995: 1993: 1990: 1988: 1985: 1983: 1980: 1978: 1975: 1973: 1970: 1968: 1965: 1963: 1960: 1959: 1950: 1947: 1946: 1944: 1942: 1938: 1932: 1929: 1927: 1924: 1923: 1921: 1919: 1915: 1912: 1910: 1906: 1896: 1893: 1891: 1888: 1887: 1885: 1883: 1879: 1876: 1874: 1870: 1867: 1865: 1861: 1851: 1848: 1847: 1845: 1843: 1839: 1836: 1834: 1830: 1827: 1825: 1819: 1816: 1814: 1808: 1799: 1794: 1792: 1787: 1785: 1780: 1779: 1776: 1772: 1768: 1764: 1757: 1752: 1750: 1745: 1743: 1738: 1737: 1734: 1724: 1720: 1716: 1712: 1711:AAPG Bulletin 1705: 1690: 1689: 1681: 1666: 1662: 1658: 1651: 1642: 1641:10.3133/pp134 1637: 1633: 1629: 1625: 1618: 1609: 1608:10.3133/b541D 1604: 1600: 1596: 1589: 1580: 1575: 1571: 1567: 1563: 1559: 1552: 1543: 1538: 1534: 1530: 1523: 1515: 1511: 1507: 1503: 1500:(1): 91–130. 1499: 1495: 1488: 1472: 1468: 1461: 1454: 1445: 1440: 1436: 1432: 1425: 1416: 1411: 1407: 1403: 1396: 1380: 1376: 1369: 1362: 1346: 1342: 1335: 1326: 1321: 1317: 1313: 1306: 1304: 1287: 1283: 1276: 1267: 1266:10.3133/pp332 1262: 1258: 1254: 1250: 1243: 1235: 1231: 1227: 1223: 1216: 1200: 1193: 1186: 1171: 1167: 1163: 1156: 1141: 1135: 1131: 1127: 1123: 1116: 1109: 1104: 1097: 1086: 1079: 1072: 1070: 1068: 1059: 1055: 1051: 1047: 1046:AAPG Bulletin 1040: 1032: 1028: 1022: 1020: 1015: 1006: 1003: 1001: 998: 996: 993: 991: 988: 986: 983: 982: 978: 967: 964: 953: 946: 944: 940: 936: 932: 927: 925: 921: 917: 913: 909: 899: 893: 873: 870: 867: 865: 862: 859: 857: 854: 851: 849: 848: 844: 841: 840: 839: 838: 835: 832: 831: 830: 823: 821: 818: 815: 813: 812: 808: 805: 803: 802: 798: 795: 794: 793: 792: 789:Socorro Basin 788: 787: 781: 779: 776: 774: 771: 768: 766:Carlile Shale 765: 762: 760: 759: 754: 751: 750: 749: 748: 745: 742: 741: 740: 733: 730: 727: 726: 725: 724: 721: 718: 717: 709: 706: 705: 703: 698: 696: 695: 691: 688: 687: 685: 680: 678: 675: 672: 669: 667: 664: 663: 661: 660: 659: 658: 655: 654:Paradox Basin 652: 651: 650: 643: 641: 640:Carlile Shale 638: 636: 633: 632: 631: 630: 626: 623: 622: 617: 614: 612: 609: 606: 604: 601: 598: 595: 592: 589: 588: 587: 586: 583: 580: 579: 573: 570: 567: 564: 563: 562: 561: 557: 556: 555: 554: 551: 549: 545: 535: 533: 529: 525: 517: 512: 506: 502: 498: 493: 484: 482: 478: 473: 471: 467: 462: 458: 453: 451: 447: 443: 439: 437: 433: 430: 426: 422: 418: 414: 406: 402: 393: 391: 386: 384: 380: 376: 372: 368: 338: 310: 300: 297: 294: 290: 285: 282: 278: 274: 271: 267: 264: 263:United States 253: 249: 246: 242: 238: 234: 230: 227: 223: 218: 190: 188: 184: 179: 176: 173: 169: 164: 161: 158: 154: 151: 148: 144: 141: 138: 134: 131: 128: 124: 117: 112: 106: 101: 96: 91: 86: 81: 76: 71: 66: 61: 56: 51: 45: 37: 33: 29: 25: 20: 2470:Pierre Shale 2440:Mancos Shale 2439: 2370:Dakota Group 1714: 1710: 1704: 1694:21 September 1692:. Retrieved 1687: 1680: 1670:21 September 1668:. Retrieved 1664: 1660: 1650: 1631: 1627: 1617: 1598: 1588: 1570:10.3133/b510 1561: 1557: 1551: 1532: 1522: 1497: 1493: 1487: 1477:17 September 1475:. Retrieved 1470: 1466: 1453: 1434: 1424: 1405: 1395: 1385:15 September 1383:. Retrieved 1378: 1374: 1361: 1351:16 September 1349:. Retrieved 1344: 1334: 1315: 1292:15 September 1290:. Retrieved 1285: 1275: 1256: 1252: 1242: 1234:10.3133/b00O 1225: 1215: 1205:16 September 1203:. Retrieved 1198: 1185: 1175:17 September 1173:. Retrieved 1169: 1165: 1155: 1145:16 September 1143:. Retrieved 1129: 1125: 1115: 1103: 1095: 1089:. Retrieved 1084: 1049: 1045: 1039: 1030: 928: 916:Mancos River 905: 845: 834:Uintah Basin 819: 809: 799: 777: 755: 692: 681:Tununk Shale 666:Masuk Member 541: 521: 481:Great Plains 474: 457:intertongues 454: 440: 438:) to 80 Ma. 410: 387: 371:Mancos Group 370: 367:Mancos Shale 366: 364: 287:Type section 160:Dakota Group 42:110–80  22:Mancos Shale 3492:Tremadocian 3260:Tournaisian 2450:Mowry Shale 2405:Juana Lopez 2119:D2 Sequence 1842:Pleistocene 1027:Cross, C.W. 872:Mowry Shale 864:Aspen Shale 728:Buck Tongue 689:Buck Tongue 582:Chama Basin 548:intertongue 546:that often 501:Uinta Basin 497:Mowry Shale 487:Occurrences 466:Skull Creek 212: / 200:108°17′49″W 187:Coordinates 3806:Categories 3602:Guzhangian 2910:Cisuralian 1941:Aquitanian 1579:2346/65145 1535:. 1787-M. 1437:. 1372-J. 1318:. 1787-F. 1288:. I-2184-A 1201:. OF-GM 48 1091:2018-08-13 1011:References 943:group rank 924:Grand Mesa 530:, and the 461:sandstones 427:) through 421:Cenomanian 237:New Mexico 197:37°21′11″N 32:Mid Albian 3541:Furongian 3360:Famennian 2871:Lopingian 2731:Olenekian 2168:Paleocene 2039:Oligocene 1918:Messinian 1601:. 541-D. 1381:: 218–226 734:Main body 450:Mesaverde 429:Campanian 423:(locally 292:Named for 166:Lithology 146:Underlies 136:Sub-units 36:Campanian 3760:Siderian 3593:Series 3 3550:Stage 10 3132:Gzhelian 2919:Asselian 2048:Chattian 1882:Zanclean 1873:Pliocene 1767:Colorado 1052:: 1–20. 949:See also 470:Graneros 448:and the 233:Colorado 181:Location 156:Overlies 140:See text 3566:Paibian 2686:Anisian 1909:Miocene 1502:Bibcode 1473:: 15–16 1347:. OM-78 464:(e.g., 452:Group. 413:mudrock 396:Geology 381:of the 251:Country 245:Wyoming 229:Arizona 171:Primary 3722:Tonian 3460:Middle 2747:Induan 2677:Middle 2573:Middle 2102:Eocene 1136:  1132:: 88. 686:North 526:, the 446:Dakota 425:Albian 279:& 269:Extent 260:  225:Region 3483:Lower 3439:Upper 3351:Upper 2722:Lower 2659:Upper 2611:Lower 2540:Upper 2504:Lower 2338:Upper 1463:(PDF) 1371:(PDF) 1195:(PDF) 1081:(PDF) 373:is a 175:Shale 1696:2021 1672:2021 1479:2021 1387:2021 1353:2021 1294:2021 1207:2021 1177:2021 1147:2021 1134:ISBN 503:and 432:ages 365:The 241:Utah 126:Type 50:PreꞒ 1765:of 1719:doi 1636:doi 1632:134 1603:doi 1574:hdl 1566:doi 1562:510 1537:doi 1510:doi 1471:185 1439:doi 1410:doi 1320:doi 1261:doi 1257:332 1230:doi 1130:260 1054:doi 369:or 3808:: 3695:pЄ 2852:Pz 2841:Ph 2649:Tr 2319:Mz 2308:Ph 2029:Pe 1823:Cz 1812:Ph 1717:. 1715:41 1713:. 1665:2B 1663:. 1659:. 1634:. 1630:. 1626:. 1597:. 1572:. 1564:. 1560:. 1531:. 1508:. 1498:55 1496:. 1469:. 1465:. 1433:. 1404:. 1379:56 1377:. 1373:. 1343:. 1314:. 1302:^ 1284:. 1259:. 1251:. 1224:. 1197:. 1170:19 1168:. 1164:. 1128:. 1124:. 1094:. 1083:. 1066:^ 1050:44 1048:. 1018:^ 534:. 468:, 436:Ma 392:. 385:. 275:, 243:, 239:, 235:, 231:, 100:Pg 44:Ma 30:: 3751:X 3713:Z 3704:♇ 3681:e 3674:t 3667:v 3532:Є 3430:O 3342:D 3251:M 3123:⁋ 3114:C 2862:P 2826:e 2819:t 2812:v 2531:J 2329:K 2293:e 2286:t 2279:v 1864:N 1833:Q 1797:e 1790:t 1783:v 1755:e 1748:t 1741:v 1725:. 1721:: 1698:. 1674:. 1644:. 1638:: 1611:. 1605:: 1582:. 1576:: 1568:: 1545:. 1539:: 1516:. 1512:: 1504:: 1481:. 1447:. 1441:: 1418:. 1412:: 1389:. 1355:. 1328:. 1322:: 1296:. 1269:. 1263:: 1236:. 1232:: 1209:. 1179:. 1149:. 1060:. 1056:: 105:N 95:K 90:J 85:T 80:P 75:C 70:D 65:S 60:O 55:Ꞓ 39:~ 34:-

Index

Stratigraphic range
Mid Albian
Campanian
Ma
PreꞒ

O
S
D
C
P
T
J
K
Pg
N

Geologic formation
See text
Mesaverde Formation
Dakota Group
Shale
Coordinates
37°21′11″N 108°17′49″W / 37.353°N 108.297°W / 37.353; -108.297
Arizona
Colorado
New Mexico
Utah
Wyoming
United States

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.