468:
1301:
1166:
123:
359:
1543:
901:
1412:
738:
412:
1577:
366:
1451:
939:
1661:
458:
Armas and Sánchez performed a detailed facies analysis of the formation in 2015, where the authors concluded the formation represents a hybrid coastal system of tidal flats, dominated by
Atlantic ingressions, with a large storm influence in some areas linked to aeolian systems.
2674:
Riguetti, Facundo; Pereda-Suberbiola, Xabier; Ponce, Denis; Salgado, Leonardo; ApesteguĂa, Sebastián; Rozadilla, Sebastián; Arbour, Victoria (2022-12-31). "A new small-bodied ankylosaurian dinosaur from the Upper
Cretaceous of North Patagonia (RĂo Negro Province, Argentina)".
2534:
Weishampel, David B; et al. (2004). "Dinosaur distribution (Late
Cretaceous, South America)." In: Weishampel, David B.; Dodson, Peter; and OsmĂłlska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 600-604.
2726:
Rozadilla, S.; BrissĂłn-Egli, F.; AgnolĂn, F.L.; Aranciaga-Rolando, A.M.; Novas, F.E. (2022). "A new hadrosaurid (Dinosauria: Ornithischia) from the Late
Cretaceous of northern Patagonia and the radiation of South American hadrosaurids".
419:
Uliana and Dellapé defined the formation's stratotype in 1981 in the eastern area of the Bajo de Añelo, where the relation between the base and top is clearly exposed. The deposits are mostly clastic, interbedded with banks of
1438:
A holotype consists of a mid-dorsal vertebra, both scapulocoracoids, left tibia and femur, left pubis articulated with the pubic peduncle of the ilium, the anterior blade of the left ilium, and two partially preserved eggs.
3499:
O'Gorman, J. P., Salgado, L., y
Gasparini, Z., 2011. Plesiosaurios de la FormaciĂłn Allen (Campaniano-Maastrichtiano) en el área del Salitral de Santa Rosa (Provincia de RĂo Negro, Argentina). Ameghiniana 48 (1):
3390:
Salgado, L.; Coria, R.A.; Magalheas
Ribeiro, C.M.; Garrido, A.; Rogers, R.; Simon, M.E.; Arcucci, A.B.; Rogers, Carabajal, A. P., Apesteguia, S., Fernandez, M., Garcia, R. A., and Talevi, M., K.C. (2007),
3047:
Connelly, B. E.; Cardozo, M. S.; Montgomery, J. D.; Rougier, G. W. (2024). "New mammals from the Upper
Cretaceous Allen Formation (Patagonia, Argentina) and reassessment of meridiolestidan diversity".
2840:
Aranciaga
Rolando, Mauro; Cerroni, Mauricio A.; Garcia MarsĂ , Jordi A.; AgnolĂn, Federico l.; Motta, MatĂas J.; Rozadilla, Sebastián; Brisson EglĂ, Federico; Novas, Fernando E. (2020-10-14).
3136:
451:, followed by a lagoon sedimentary stage from marsh to sea with carbonate precipitation in an area protected from waves, ending with a retraction leading to the accumulation of
2561:"Late Cretaceous vertebrates from Bajo de Santa Rosa (Allen Formation), Rio Negro province, Argentina, with the description of a new sauropod dinosaur (Titanosauridae)".
3564:
3156:
3393:"Upper Cretaceous dinosaur nesting sites of Rio Negro (Salitral Ojo de Agua and Salinas de Trapalco-Salitral de Santa Rosa), northern Patagonia, Argentina"
2927:"In the shadow of dinosaurs: Late Cretaceous frogs are distinct components of a widespread tetrapod assemblage across Argentinean and Chilean Patagonia"
1400:
A fragmentary skeleton including parts of the skull, lower jaw, a few neck and torso vertebrae, some ribs, a humerus, and assorted bones from both legs
2564:
3447:
2440:
2842:"A new medium-sized abelisaurid (Theropoda, Dinosauria) from the late cretaceous (Maastrichtian) Allen Formation of Northern Patagonia, Argentina"
2337:
2226:
2156:
128:
399:(middle Campanian to early Maastrichtian. Dinosaur remains are among the fossils that have been recovered from the formation. Indeterminate
2309:
2283:
927:
Partial skull, a cervical vertebrae, several sacrals, sternal rib and sternal plate, and multiple referred specimens found in a bonebed
726:
Tooth, three posterior dorsal vertebrae, caudal vertebrae, two caudal centra, right femur, partial cervical half ring, and osteoderms.
3519:
2623:
Arbour, Victoria M.; Currie, Philip J. (2016-05-03). "Systematics, phylogeny and palaeobiogeography of the ankylosaurid dinosaurs".
2476:
358:
3080:"The Valcheta Petrified Forest (Upper Cretaceous), Northern Patagonia, Argentina: A Geological And Paleobotanical Survey"
3569:
3298:
3477:
3131:
2540:
2189:
The mammal fauna of the Allen
Formation is known from seven teeth, which document the presence of several species.
1535:
Braincase, fragmentary jaw and teeth, relatively complete scapulocoracoid, dorsal ribs, and incomplete vertebrae.
3248:"A new hadrosauroid (Dinosauria: Ornithopoda) from the Allen Formation (Late Cretaceous) of Patagonia, Argentina"
2560:
264:
225:
1227:
Seventeen caudal vertebrae and several appendicular bones: a right humerus, a left fibula and some metapodial.
3289:; Kundrat, M.; AgnolĂn, F.L.; Ezcurra, M.N.D.; Ahlberg, P.E.; Isasi, M.P.; Arriagada, A.; Chafrat, P. (2012),
3173:
3534:
3529:
3524:
2782:"63.10 Provincia de RĂo Negro, Argentina; 4. RĂo Colorado Formation," in Weishampel, et al. (2004). Page 604.
3559:
3539:
218:
3549:
3216:"Un nuevo hadrosáurido (Dinosauria, Ornithopoda) de la Formación Allen, provincia de La Pampa, Argentina"
3574:
3079:
2982:
2926:
3554:
3544:
3164:
2841:
2983:"A new pipid frog from the Upper Cretaceous of Patagonia and early evolution of crown-group Pipidae"
3514:
428:, which were defined as continental and shallow marine facies associated with semiarid conditions.
467:
2496:
1477:"Right coracoid with damaged sternal and omal extremities, and lacking acrocoracoidal process"
431:
The interpreted sedimentary paleoenvironments range from purely continental such as ephemeral
2452:
303:
3406:
3355:
3307:
2994:
2939:
2684:
2632:
2501:
2486:
2481:
2105:
1300:
139:
3188:"Hybrid coastal edges in the Neuquén Basin (Allen Formation, Upper Cretaceous, Argentina)"
2506:
8:
3455:
3397:
3346:
388:
3463:
3410:
3359:
3340:
Rougier, G.W.; Chornogubsky, L.; Casadio, S.; Paéz Arango, N.; Giallombardo, A. (2009),
3311:
3290:
2998:
2943:
2688:
2636:
299:
159:
3108:
2963:
2879:
2744:
2708:
2656:
169:
3342:"Mammals from the Allen Formation, Late Cretaceous, Argentina (subscription required)"
3498:
3473:
3441:
3392:
3341:
3247:
3246:
Juárez
Valieri, Rubén D.; Haro, José A.; Fiorelli, Lucas E.; Calvo, Jorge O. (2010),
3215:
3112:
3100:
3020:
2967:
2955:
2883:
2871:
2748:
2712:
2700:
2660:
2648:
2536:
1709:
1242:
436:
307:
1165:
149:
122:
3422:
3414:
3371:
3363:
3323:
3315:
3267:
3259:
3229:
3187:
3169:
3092:
3056:
3010:
3002:
2947:
2861:
2853:
2736:
2692:
2640:
1443:
1272:
471:
3418:
3367:
3096:
3060:
3006:
2951:
2740:
2696:
2644:
325:
3467:
3319:
2857:
2491:
2366:
2109:
1975:
876:
396:
3286:
3195:
2254:
2008:
1836:
1730:
1542:
1519:
1422:
900:
257:
3233:
1411:
3508:
3104:
3024:
2959:
2875:
2725:
2704:
2652:
2384:
2355:
1793:
1751:
1404:
1211:
949:
911:
737:
730:
279:
266:
240:
227:
74:
35:
27:
3263:
3459:
2839:
1772:
1653:
1553:
1461:
1384:
997:
931:
403:
remains and other vertebrates have also been discovered in this formation.
3220:
2327:
2299:
2272:
2244:
1944:
1920:
1257:"Five tail vertebrata, sacral vertebrae, left humerus and rib fragments"
1141:
1074:
976:
965:
Elements of the axial and appendicular skeleton of a subadult individual
809:
709:
637:
543:
49:
3427:
3376:
3272:
2866:
411:
3327:
3015:
2075:
2042:
1576:
1481:
1331:
1311:
1293:
1261:
1231:
1200:
1158:
1060:
795:
676:
623:
529:
448:
432:
94:
59:
3077:
Passalia, M. G.; Garrido, A.; Iglesias, A.; Vera, E. I. (2022-10-14).
3339:
3132:"An avian coracoid from the Upper Cretaceous of Patagonia, Argentina"
2673:
1814:
1632:
1599:
1492:
1177:
843:
452:
425:
421:
392:
206:
196:
99:
43:
31:
3389:
3214:
Coria, Rodolfo A.; González Riga, Bernardo; CasadĂo, Silvio (2012),
1351:
1108:
475:
192:
89:
84:
69:
64:
54:
1450:
1067:
802:
630:
536:
444:
440:
104:
79:
3046:
938:
443:
systems to coastal marine paleoenvironments with development of
3245:
3157:"A Late Campanian Sphenodontid Maxilla from Northern Patagonia"
2196:
400:
3291:"A new large pterosaur from the Late Cretaceous of Patagonia"
2403:
2173:
1038:
773:
601:
507:
3472:, Berkeley: University of California Press, pp. 1–880,
1660:
3076:
2119:
3285:
3213:
3174:
10.1206/0003-0082(2007)3581[1:ALCSMF]2.0.CO;2
3454:
2112:, and those with no family designation were also found.
1196:
Braincases, caudal vertebrae, and several limb elements
3155:
ApesteguĂa, Sebastián; Rougier, Guillermo W. (2007),
2528:
3078:
2925:
1592:Fragmentary fossils are known from the formation.
3565:Cretaceous paleontological sites of South America
3252:Revista del Museo Argentino de Ciencias Naturales
3154:
2908:
2799:
2797:
2565:Revista del Museo Argentino de Ciencias Naturales
3506:
2830:"Table 11.1," in Weishampel, et al., 2004, p.215
2812:"Table 13.1," in Weishampel, et al., 2004, p.270
2803:"Table 13.1," in Weishampel, et al., 2004, p.269
2576:
2574:
127:Outcrop of the Allen and Anacleto Formations at
2923:
2351:A right lower molar and left dentary fragment.
2240:Two upper molars and a fragmentary lower molar
2896:"Table 4.1," in Weishampel, et al., 2004, p.77
2824:
2806:
2794:
2519:
2785:
2755:
2583:
2571:
1289:"Dorsal and caudal vertebrae, partial femur"
3446:: CS1 maint: multiple names: authors list (
3185:
2890:
2815:
2622:
1033:
768:
596:
573:Dinosaur eggs are known from the formation.
502:
3186:Armas, Paula; Sánchez, MarĂa Lidia (2015),
3031:
2924:Suazo Lara, F.; GĂłmez, R. O. (2022-03-01).
2778:
2776:
2764:
2559:Martinelli, A. and Forasiepi, A.M. (2004).
1867:Squamates reported from the Allen Formation
121:
3426:
3375:
3271:
3014:
2899:
2865:
2846:Journal of South American Earth Sciences
2773:
2477:List of dinosaur-bearing rock formations
2401:
2194:
2117:
2040:
1973:
1865:
1678:
1597:
1349:
1106:
841:
674:
466:
410:
3129:
2719:
2609:
2607:
2605:
2603:
2601:
2599:
2597:
2595:
365:
3507:
2555:
2553:
2551:
2549:
2104:Unnamed frogs belonging to the family
1680:Fish reported from the Allen Formation
3072:
3070:
2980:
2592:
1286:Lower (if it is from the formation)
887:Salitral Moreno and Islas Malvinas.
2914:ApesteguĂa & Rougier, 2007, p.3
2729:Journal of Systematic Palaeontology
2677:Journal of Systematic Palaeontology
2625:Journal of Systematic Palaeontology
2546:
1090:Uncertain or tentative taxa are in
825:Uncertain or tentative taxa are in
653:Uncertain or tentative taxa are in
559:Uncertain or tentative taxa are in
13:
3492:
3299:Journal of Vertebrate Paleontology
3067:
1966:
1659:
1575:
1541:
1449:
1410:
1299:
1164:
937:
899:
736:
14:
3586:
2406:reported from the Allen Formation
2199:reported from the Allen Formation
2122:reported from the Allen Formation
2045:reported from the Allen Formation
1978:reported from the Allen Formation
1602:reported from the Allen Formation
1354:reported from the Allen Formation
1111:reported from the Allen Formation
1050:Taxon falsely reported as present
846:reported from the Allen Formation
785:Taxon falsely reported as present
679:reported from the Allen Formation
613:Taxon falsely reported as present
576:
519:Taxon falsely reported as present
462:
16:Geological formation in Argentina
3520:Geologic formations of Argentina
2589:Armas & Sánchez, 2015, p.110
2580:Armas & Sánchez, 2015, p.101
364:
357:
47:
3137:Studia Geologica Salmanticensia
3123:
3040:
2974:
2917:
2833:
2398:
2191:
2114:
2037:
2033:
1970:
1862:
1675:
1594:
1346:
1327:"Partial postcranial skeleton"
1103:
1055:Dubious taxon or junior synonym
1008:
838:
790:Dubious taxon or junior synonym
671:
618:Dubious taxon or junior synonym
524:Dubious taxon or junior synonym
478:discovered from Allen Formation
2667:
2616:
2613:Weishampel et al., 2004, p.604
406:
395:whose strata date back to the
1:
3419:10.1016/j.cretres.2006.06.007
3368:10.1016/j.cretres.2008.07.006
3097:10.1016/j.cretres.2022.105395
3061:10.1016/j.cretres.2024.105935
3007:10.1016/j.cretres.2016.02.006
2981:GĂłmez, RaĂşl O. (2016-07-01).
2952:10.1016/j.cretres.2021.105085
2741:10.1080/14772019.2021.2020917
2697:10.1080/14772019.2022.2137441
2645:10.1080/14772019.2015.1059985
2512:
1784:5 incomplete pectoral spines
1763:4 incomplete pectoral spines
1587:
179:up to 70 m (230 ft)
3320:10.1080/02724634.2012.703979
3130:Agnolin, Federico L (2010),
2858:10.1016/j.jsames.2020.102915
2025:
1342:
482:
258:Approximate paleocoordinates
7:
3469:The Dinosauria, 2nd edition
2770:Juárez Valieri et al., 2010
2470:
2451:Valcheta Petrified Forest,
1858:
1017:
752:
580:
486:
373:Allen Formation (Argentina)
10:
3591:
2184:
1956:incomplete trunk vertebra
1935:incomplete trunk vertebra
1910:incomplete trunk vertebra
733:of uncertain affinities.
720:Salitral Moreno locality.
3570:Paleontology in Argentina
3234:10.5710/AMGH.9.4.2012.487
3165:American Museum Novitates
2394:
1848:19 fragmentary vertebrae
1024:
1020:
759:
755:
587:
583:
493:
489:
352:
344:
336:
331:
321:
313:
295:
256:
217:
212:
202:
188:
183:
175:
165:
155:
145:
135:
120:
26:
21:
2099:
1022:
757:
585:
491:
415:Fauna of Allen Formation
3264:10.22179/REVMACN.12.242
2060:Stratigraphic position
1993:Stratigraphic position
1882:Stratigraphic position
1695:Stratigraphic position
1671:
1617:Stratigraphic position
1569:Femur and distal tibia
1369:Stratigraphic position
1126:Stratigraphic position
861:Stratigraphic position
694:Stratigraphic position
2497:Los Alamitos Formation
2422:Stratigraphic position
2380:One first lower molar
2138:Stratigraphic position
1664:
1652:The first unambiguous
1580:
1546:
1454:
1415:
1304:
1169:
1098:taxa are discredited.
987:Salitral Moreno site.
942:
904:
833:taxa are discredited.
741:
661:taxa are discredited.
567:taxa are discredited.
479:
416:
2323:One upper molariform
1663:
1579:
1545:
1453:
1414:
1303:
1168:
941:
903:
740:
470:
414:
3535:Limestone formations
3530:Sandstone formations
3525:Cretaceous Argentina
3456:Weishampel, David B.
3037:Rougier et al., 2009
2791:Rolando et al., 2022
2525:Salgado et al., 2007
2502:Los Llanos Formation
2487:La Colonia Formation
2482:Adamantina Formation
2106:Calyptocephalellidae
1742:11 vertebral centra
993:A right premaxilla.
893:A partial skeleton.
340:Uliana & Dellapé
140:Geological formation
3560:Lacustrine deposits
3540:Mudstone formations
3411:2007CrRes..28..392S
3398:Cretaceous Research
3360:2009CrRes..30..223R
3347:Cretaceous Research
3312:2012JVPal..32.1447N
3085:Cretaceous Research
3049:Cretaceous Research
2999:2016CrRes..62...52G
2987:Cretaceous Research
2944:2022CrRes.13105085S
2932:Cretaceous Research
2689:2022JSPal..2037441R
2637:2016JSPal..14..385A
1805:6 vertebral centra
1656:from South-America
1508:"Partial forelimb"
276: /
237: /
28:Stratigraphic range
3550:Evaporite deposits
2905:Novas et al., 2012
2761:Coria et al., 2012
2453:RĂo Negro Province
1826:10 isolated teeth
1665:
1643:Bajo de Arriagada
1581:
1547:
1455:
1416:
1305:
1170:
1045:Reclassified taxon
943:
905:
780:Reclassified taxon
742:
608:Reclassified taxon
514:Reclassified taxon
480:
417:
308:La Pampa Provinces
170:Anacleto Formation
3464:OsmĂłlska, Halszka
2735:(17): 1207–1235.
2507:MarĂlia Formation
2468:
2467:
2392:
2391:
2182:
2181:
2097:
2096:
2031:
2030:
1964:
1963:
1856:
1855:
1710:Ceratodontiformes
1669:
1668:
1585:
1584:
1340:
1339:
1243:Panamericansaurus
1102:
1101:
1093:
1081:
1080:
1077:
1070:
1063:
1056:
1051:
1046:
1041:
1006:
1005:
837:
836:
828:
816:
815:
812:
805:
798:
791:
786:
781:
776:
746:
745:
665:
664:
656:
644:
643:
640:
633:
626:
619:
614:
609:
604:
571:
570:
562:
550:
549:
546:
539:
532:
525:
520:
515:
510:
381:
380:
3582:
3555:Fluvial deposits
3545:Aeolian deposits
3488:
3487:
3486:
3451:
3445:
3437:
3436:
3435:
3430:
3386:
3385:
3384:
3379:
3336:
3335:
3334:
3295:
3282:
3281:
3280:
3275:
3242:
3241:
3240:
3210:
3209:
3208:
3192:
3182:
3181:
3180:
3161:
3151:
3150:
3149:
3117:
3116:
3082:
3074:
3065:
3064:
3044:
3038:
3035:
3029:
3028:
3018:
2978:
2972:
2971:
2929:
2921:
2915:
2912:
2906:
2903:
2897:
2894:
2888:
2887:
2869:
2837:
2831:
2828:
2822:
2819:
2813:
2810:
2804:
2801:
2792:
2789:
2783:
2780:
2771:
2768:
2762:
2759:
2753:
2752:
2723:
2717:
2716:
2671:
2665:
2664:
2620:
2614:
2611:
2590:
2587:
2581:
2578:
2569:
2557:
2544:
2532:
2526:
2523:
2399:
2295:One lower molar
2268:One upper molar
2192:
2115:
2038:
1971:
1863:
1676:
1649:Partial rostrum
1639:A. sudamericanus
1595:
1572:An abelisaurid.
1347:
1273:Pellegrinisaurus
1104:
1091:
1073:
1066:
1059:
1054:
1049:
1044:
1037:
1034:
1018:
983:W. salitralensis
839:
826:
808:
801:
794:
789:
784:
779:
772:
769:
753:
672:
654:
636:
629:
622:
617:
612:
607:
600:
597:
581:
560:
542:
535:
528:
523:
518:
513:
506:
503:
487:
472:Life restoration
387:is a geological
368:
367:
361:
291:
290:
288:
287:
286:
281:
277:
274:
273:
272:
269:
252:
251:
249:
248:
247:
242:
238:
235:
234:
233:
230:
160:JagĂĽel Formation
125:
116:
46:
19:
18:
3590:
3589:
3585:
3584:
3583:
3581:
3580:
3579:
3515:Allen Formation
3505:
3504:
3495:
3493:Further reading
3484:
3482:
3480:
3439:
3438:
3433:
3431:
3382:
3380:
3332:
3330:
3293:
3278:
3276:
3238:
3236:
3206:
3204:
3190:
3178:
3176:
3159:
3147:
3145:
3126:
3121:
3120:
3075:
3068:
3045:
3041:
3036:
3032:
2979:
2975:
2922:
2918:
2913:
2909:
2904:
2900:
2895:
2891:
2838:
2834:
2829:
2825:
2820:
2816:
2811:
2807:
2802:
2795:
2790:
2786:
2781:
2774:
2769:
2765:
2760:
2756:
2724:
2720:
2672:
2668:
2621:
2617:
2612:
2593:
2588:
2584:
2579:
2572:
2558:
2547:
2533:
2529:
2524:
2520:
2515:
2492:Lecho Formation
2473:
2397:
2373:T. matuastensis
2367:Trapalcotherium
2233:M. lamarquensis
2187:
2110:Leptodactylidae
2102:
2082:K. lafquenianum
2036:
1976:Rhynchocephalia
1969:
1967:Rhynchocephalia
1861:
1721:3 tooth plates
1674:
1590:
1538:An abelisaurid
1511:An ornithuran.
1345:
1089:
1032:
1011:
883:B. rionegrensis
877:Bonapartesaurus
824:
767:
652:
595:
579:
558:
501:
485:
465:
409:
397:Late Cretaceous
385:Allen Formation
377:
376:
375:
374:
371:
370:
369:
284:
282:
278:
275:
270:
267:
265:
263:
262:
245:
243:
239:
236:
231:
228:
226:
224:
223:
131:
115:
114:
113:
112:
107:
102:
97:
92:
87:
82:
77:
72:
67:
62:
57:
52:
41:
40:
38:
22:Allen Formation
17:
12:
11:
5:
3588:
3578:
3577:
3575:MalargĂĽe Group
3572:
3567:
3562:
3557:
3552:
3547:
3542:
3537:
3532:
3527:
3522:
3517:
3503:
3502:
3494:
3491:
3490:
3489:
3478:
3452:
3405:(3): 392–404,
3387:
3354:(1): 223–238,
3337:
3283:
3258:(2): 217–231,
3254:, New Series,
3243:
3228:(4): 552–572,
3211:
3196:Andean Geology
3183:
3168:(3581): 1–12,
3152:
3125:
3122:
3119:
3118:
3066:
3039:
3030:
2973:
2916:
2907:
2898:
2889:
2832:
2823:
2814:
2805:
2793:
2784:
2772:
2763:
2754:
2718:
2683:(1): 2137441.
2666:
2631:(5): 385–444.
2615:
2591:
2582:
2570:
2568:6(2): 257–305.
2545:
2527:
2517:
2516:
2514:
2511:
2510:
2509:
2504:
2499:
2494:
2489:
2484:
2479:
2472:
2469:
2466:
2465:
2463:
2461:
2458:
2456:
2449:
2444:
2441:Podocarpoxylon
2436:
2435:
2432:
2429:
2424:
2419:
2416:
2413:
2409:
2408:
2396:
2393:
2390:
2389:
2387:
2381:
2378:
2377:Cerro Tortuga
2375:
2370:
2362:
2361:
2359:
2352:
2349:
2348:Cerro Tortuga
2346:
2341:
2333:
2332:
2330:
2324:
2321:
2320:Cerro Tortuga
2318:
2313:
2305:
2304:
2302:
2296:
2293:
2292:Cerro Tortuga
2290:
2287:
2278:
2277:
2275:
2269:
2266:
2265:Cerro Tortuga
2263:
2261:G. stipanicici
2258:
2255:Groebertherium
2250:
2249:
2247:
2241:
2238:
2237:Cerro Tortuga
2235:
2230:
2222:
2221:
2218:
2215:
2212:
2209:
2206:
2202:
2201:
2186:
2183:
2180:
2179:
2177:
2171:
2169:
2167:
2165:
2160:
2152:
2151:
2148:
2145:
2140:
2135:
2132:
2129:
2125:
2124:
2101:
2098:
2095:
2094:
2092:
2090:
2088:
2086:
2084:
2079:
2071:
2070:
2067:
2064:
2061:
2058:
2055:
2052:
2048:
2047:
2035:
2032:
2029:
2028:
2026:
2024:
2022:
2020:
2019:Cerro Tortuga
2017:
2012:
2009:Lamarquesaurus
2004:
2003:
2000:
1997:
1994:
1991:
1988:
1985:
1981:
1980:
1968:
1965:
1962:
1961:
1959:
1957:
1954:
1952:
1950:
1949:indeterminate
1947:
1941:
1940:
1938:
1936:
1933:
1931:
1929:
1924:
1916:
1915:
1913:
1911:
1908:
1906:
1904:
1899:
1893:
1892:
1889:
1886:
1883:
1880:
1877:
1874:
1870:
1869:
1860:
1857:
1854:
1853:
1851:
1849:
1846:
1844:
1842:
1841:indeterminate
1839:
1837:Percichthyidae
1832:
1831:
1829:
1827:
1824:
1822:
1820:
1819:indeterminate
1817:
1811:
1810:
1808:
1806:
1803:
1801:
1799:
1798:indeterminate
1796:
1790:
1789:
1787:
1785:
1782:
1780:
1778:
1777:indeterminate
1775:
1769:
1768:
1766:
1764:
1761:
1759:
1757:
1756:indeterminate
1754:
1748:
1747:
1745:
1743:
1740:
1738:
1736:
1735:indeterminate
1733:
1731:Chondrichthyes
1727:
1726:
1724:
1722:
1719:
1717:
1715:
1714:indeterminate
1712:
1706:
1705:
1702:
1699:
1696:
1693:
1690:
1687:
1683:
1682:
1673:
1670:
1667:
1666:
1657:
1650:
1647:
1644:
1641:
1636:
1628:
1627:
1624:
1621:
1618:
1615:
1612:
1609:
1605:
1604:
1589:
1586:
1583:
1582:
1573:
1570:
1567:
1564:
1562:
1557:
1549:
1548:
1539:
1536:
1533:
1530:
1528:
1523:
1515:
1514:
1512:
1509:
1506:
1503:
1501:
1496:
1488:
1487:
1485:
1478:
1475:
1472:
1470:
1465:
1457:
1456:
1447:
1444:alvarezsauroid
1440:
1436:
1433:
1431:
1426:
1423:Bonapartenykus
1418:
1417:
1408:
1401:
1398:
1395:
1393:
1388:
1380:
1379:
1376:
1373:
1370:
1367:
1364:
1361:
1357:
1356:
1344:
1341:
1338:
1337:
1335:
1328:
1325:
1322:
1320:
1315:
1307:
1306:
1297:
1290:
1287:
1284:
1282:
1277:
1268:
1267:
1265:
1258:
1255:
1253:
1251:
1246:
1238:
1237:
1235:
1228:
1225:
1222:
1220:
1215:
1207:
1206:
1204:
1197:
1194:
1191:
1189:
1182:
1172:
1171:
1162:
1155:
1153:
1150:
1148:
1147:Indeterminate
1145:
1137:
1136:
1133:
1130:
1127:
1124:
1121:
1118:
1114:
1113:
1100:
1099:
1084:
1082:
1079:
1078:
1071:
1064:
1057:
1052:
1047:
1042:
1026:
1025:
1023:
1021:
1016:
1015:
1010:
1007:
1004:
1003:
1001:
994:
991:
988:
985:
980:
972:
971:
969:
966:
963:
960:
958:
953:
945:
944:
935:
928:
925:
922:
920:
915:
907:
906:
897:
894:
891:
888:
885:
880:
872:
871:
868:
865:
862:
859:
856:
853:
849:
848:
835:
834:
819:
817:
814:
813:
806:
799:
792:
787:
782:
777:
761:
760:
758:
756:
751:
750:
744:
743:
734:
727:
724:
721:
718:
713:
705:
704:
701:
698:
695:
692:
689:
686:
682:
681:
670:
669:
663:
662:
647:
645:
642:
641:
634:
627:
620:
615:
610:
605:
589:
588:
586:
584:
578:
577:Ornithischians
575:
569:
568:
553:
551:
548:
547:
540:
533:
526:
521:
516:
511:
495:
494:
492:
490:
484:
481:
464:
463:Fossil content
461:
424:and layers of
408:
405:
379:
378:
372:
363:
362:
356:
355:
354:
353:
350:
349:
346:
342:
341:
338:
334:
333:
329:
328:
323:
319:
318:
315:
311:
310:
297:
293:
292:
260:
254:
253:
221:
215:
214:
210:
209:
204:
200:
199:
190:
186:
185:
181:
180:
177:
173:
172:
167:
163:
162:
157:
153:
152:
150:MalargĂĽe Group
147:
143:
142:
137:
133:
132:
126:
118:
117:
110:
109:
108:
103:
98:
93:
88:
83:
78:
73:
68:
63:
58:
53:
48:
24:
23:
15:
9:
6:
4:
3:
2:
3587:
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:
3512:
3510:
3501:
3497:
3496:
3481:
3479:0-520-24209-2
3475:
3471:
3470:
3465:
3461:
3460:Dodson, Peter
3457:
3453:
3449:
3443:
3429:
3424:
3420:
3416:
3412:
3408:
3404:
3400:
3399:
3394:
3388:
3378:
3373:
3369:
3365:
3361:
3357:
3353:
3349:
3348:
3343:
3338:
3329:
3325:
3321:
3317:
3313:
3309:
3305:
3301:
3300:
3292:
3288:
3284:
3274:
3269:
3265:
3261:
3257:
3253:
3249:
3244:
3235:
3231:
3227:
3223:
3222:
3217:
3212:
3202:
3198:
3197:
3189:
3184:
3175:
3171:
3167:
3166:
3158:
3153:
3143:
3139:
3138:
3133:
3128:
3127:
3114:
3110:
3106:
3102:
3098:
3094:
3090:
3086:
3081:
3073:
3071:
3062:
3058:
3054:
3050:
3043:
3034:
3026:
3022:
3017:
3012:
3008:
3004:
3000:
2996:
2992:
2988:
2984:
2977:
2969:
2965:
2961:
2957:
2953:
2949:
2945:
2941:
2937:
2933:
2928:
2920:
2911:
2902:
2893:
2885:
2881:
2877:
2873:
2868:
2863:
2859:
2855:
2851:
2847:
2843:
2836:
2827:
2821:Agnolin, 2010
2818:
2809:
2800:
2798:
2788:
2779:
2777:
2767:
2758:
2750:
2746:
2742:
2738:
2734:
2730:
2722:
2714:
2710:
2706:
2702:
2698:
2694:
2690:
2686:
2682:
2678:
2670:
2662:
2658:
2654:
2650:
2646:
2642:
2638:
2634:
2630:
2626:
2619:
2610:
2608:
2606:
2604:
2602:
2600:
2598:
2596:
2586:
2577:
2575:
2567:
2566:
2562:
2556:
2554:
2552:
2550:
2542:
2541:0-520-24209-2
2538:
2531:
2522:
2518:
2508:
2505:
2503:
2500:
2498:
2495:
2493:
2490:
2488:
2485:
2483:
2480:
2478:
2475:
2474:
2464:
2462:
2460:Fossil wood.
2459:
2457:
2454:
2450:
2448:
2445:
2443:
2442:
2438:
2437:
2433:
2430:
2428:
2425:
2423:
2420:
2417:
2414:
2411:
2410:
2407:
2405:
2400:
2388:
2386:
2385:gondwanathere
2382:
2379:
2376:
2374:
2371:
2369:
2368:
2364:
2363:
2360:
2357:
2356:meridiolestid
2353:
2350:
2347:
2345:
2342:
2340:
2339:
2338:Solanutheirum
2335:
2334:
2331:
2329:
2325:
2322:
2319:
2317:
2316:B. allenensis
2314:
2312:
2311:
2307:
2306:
2303:
2301:
2297:
2294:
2291:
2288:
2286:
2285:
2280:
2279:
2276:
2274:
2270:
2267:
2264:
2262:
2259:
2257:
2256:
2252:
2251:
2248:
2246:
2242:
2239:
2236:
2234:
2231:
2229:
2228:
2224:
2223:
2219:
2216:
2213:
2210:
2207:
2204:
2203:
2200:
2198:
2193:
2190:
2178:
2175:
2172:
2170:
2168:
2166:
2164:
2163:K. xenopoides
2161:
2159:
2158:
2154:
2153:
2149:
2146:
2144:
2141:
2139:
2136:
2133:
2130:
2127:
2126:
2123:
2121:
2116:
2113:
2111:
2107:
2093:
2091:
2089:
2087:
2085:
2083:
2080:
2078:
2077:
2073:
2072:
2068:
2065:
2062:
2059:
2056:
2053:
2050:
2049:
2046:
2044:
2039:
2027:
2023:
2021:
2018:
2016:
2013:
2011:
2010:
2006:
2005:
2001:
1998:
1995:
1992:
1989:
1986:
1983:
1982:
1979:
1977:
1972:
1960:
1958:
1955:
1953:
1951:
1948:
1946:
1943:
1942:
1939:
1937:
1934:
1932:
1930:
1928:
1927:A. argentinus
1925:
1923:
1922:
1918:
1917:
1914:
1912:
1909:
1907:
1905:
1903:
1900:
1898:
1897:Patagoniophis
1895:
1894:
1890:
1887:
1884:
1881:
1878:
1875:
1872:
1871:
1868:
1864:
1852:
1850:
1847:
1845:
1843:
1840:
1838:
1834:
1833:
1830:
1828:
1825:
1823:
1821:
1818:
1816:
1813:
1812:
1809:
1807:
1804:
1802:
1800:
1797:
1795:
1794:Lepisosteidae
1792:
1791:
1788:
1786:
1783:
1781:
1779:
1776:
1774:
1771:
1770:
1767:
1765:
1762:
1760:
1758:
1755:
1753:
1752:Diplomystidae
1750:
1749:
1746:
1744:
1741:
1739:
1737:
1734:
1732:
1729:
1728:
1725:
1723:
1720:
1718:
1716:
1713:
1711:
1708:
1707:
1703:
1700:
1697:
1694:
1691:
1688:
1685:
1684:
1681:
1677:
1662:
1658:
1655:
1651:
1648:
1645:
1642:
1640:
1637:
1635:
1634:
1630:
1629:
1625:
1622:
1619:
1616:
1613:
1610:
1607:
1606:
1603:
1601:
1596:
1593:
1578:
1574:
1571:
1568:
1565:
1563:
1561:
1558:
1556:
1555:
1551:
1550:
1544:
1540:
1537:
1534:
1531:
1529:
1527:
1524:
1522:
1521:
1517:
1516:
1513:
1510:
1507:
1504:
1502:
1500:
1499:L. patagonica
1497:
1495:
1494:
1490:
1489:
1486:
1483:
1479:
1476:
1473:
1471:
1469:
1466:
1464:
1463:
1459:
1458:
1452:
1448:
1445:
1441:
1437:
1434:
1432:
1430:
1427:
1425:
1424:
1420:
1419:
1413:
1409:
1406:
1405:dromaeosaurid
1402:
1399:
1396:
1394:
1392:
1389:
1387:
1386:
1382:
1381:
1377:
1374:
1371:
1368:
1365:
1362:
1359:
1358:
1355:
1353:
1348:
1336:
1333:
1329:
1326:
1323:
1321:
1319:
1316:
1314:
1313:
1309:
1308:
1302:
1298:
1295:
1291:
1288:
1285:
1283:
1281:
1278:
1276:
1274:
1270:
1269:
1266:
1263:
1259:
1256:
1254:
1252:
1250:
1249:P. schroederi
1247:
1245:
1244:
1240:
1239:
1236:
1233:
1229:
1226:
1223:
1221:
1219:
1218:M. arriagadai
1216:
1214:
1213:
1212:Menucocelsior
1209:
1208:
1205:
1202:
1198:
1195:
1192:
1190:
1188:
1187:
1183:
1181:
1180:
1179:
1174:
1173:
1167:
1163:
1160:
1156:
1154:
1151:
1149:
1146:
1144:
1143:
1139:
1138:
1134:
1131:
1128:
1125:
1122:
1119:
1116:
1115:
1112:
1110:
1105:
1097:
1088:
1085:
1083:
1076:
1072:
1069:
1065:
1062:
1058:
1053:
1048:
1043:
1040:
1036:
1035:
1031:
1028:
1027:
1019:
1013:
1012:
1002:
999:
995:
992:
989:
986:
984:
981:
979:
978:
974:
973:
970:
968:A hadrosaur.
967:
964:
961:
959:
957:
954:
952:
951:
950:Lapampasaurus
947:
946:
940:
936:
933:
929:
926:
923:
921:
919:
916:
914:
913:
912:Kelumapusaura
909:
908:
902:
898:
896:A hadrosaur.
895:
892:
889:
886:
884:
881:
879:
878:
874:
873:
869:
866:
863:
860:
857:
854:
851:
850:
847:
845:
840:
832:
823:
820:
818:
811:
807:
804:
800:
797:
793:
788:
783:
778:
775:
771:
770:
766:
763:
762:
754:
748:
747:
739:
735:
732:
731:parankylosaur
728:
725:
722:
719:
717:
714:
712:
711:
707:
706:
702:
699:
696:
693:
690:
687:
684:
683:
680:
678:
673:
667:
666:
660:
651:
648:
646:
639:
635:
632:
628:
625:
621:
616:
611:
606:
603:
599:
598:
594:
591:
590:
582:
574:
566:
557:
554:
552:
545:
541:
538:
534:
531:
527:
522:
517:
512:
509:
505:
504:
500:
497:
496:
488:
477:
473:
469:
460:
456:
454:
450:
446:
442:
438:
434:
429:
427:
423:
413:
404:
402:
398:
394:
390:
386:
360:
351:
347:
343:
339:
335:
330:
327:
326:Neuquén Basin
324:
320:
316:
312:
309:
305:
301:
298:
294:
289:
280:42.8°S 52.2°W
261:
259:
255:
250:
241:40.0°S 66.6°W
222:
220:
216:
211:
208:
205:
201:
198:
194:
191:
187:
182:
178:
174:
171:
168:
164:
161:
158:
154:
151:
148:
144:
141:
138:
134:
130:
124:
119:
106:
101:
96:
91:
86:
81:
76:
71:
66:
61:
56:
51:
45:
37:
36:Maastrichtian
33:
32:Mid Campanian
29:
25:
20:
3483:, retrieved
3468:
3432:, retrieved
3428:11336/183909
3402:
3396:
3381:, retrieved
3377:11336/103413
3351:
3345:
3331:, retrieved
3303:
3297:
3277:, retrieved
3273:11336/147903
3255:
3251:
3237:, retrieved
3225:
3219:
3205:, retrieved
3200:
3194:
3177:, retrieved
3163:
3146:, retrieved
3141:
3135:
3124:Bibliography
3088:
3084:
3052:
3048:
3042:
3033:
2990:
2986:
2976:
2935:
2931:
2919:
2910:
2901:
2892:
2867:11336/150468
2849:
2845:
2835:
2826:
2817:
2808:
2787:
2766:
2757:
2732:
2728:
2721:
2680:
2676:
2669:
2628:
2624:
2618:
2585:
2563:
2530:
2521:
2446:
2439:
2426:
2421:
2402:
2372:
2365:
2343:
2336:
2315:
2308:
2282:
2260:
2253:
2232:
2227:Mesungulatum
2225:
2195:
2188:
2162:
2157:Kuruleufenia
2155:
2142:
2137:
2118:
2103:
2081:
2074:
2041:
2034:Plesiosauria
2014:
2007:
1974:
1926:
1919:
1901:
1896:
1866:
1773:Siluriformes
1679:
1638:
1631:
1598:
1591:
1559:
1554:Quilmesaurus
1552:
1525:
1518:
1498:
1491:
1468:L. australis
1467:
1462:Lamarqueavis
1460:
1428:
1421:
1390:
1385:Austroraptor
1383:
1350:
1317:
1310:
1279:
1271:
1248:
1241:
1217:
1210:
1185:
1184:
1176:
1175:
1140:
1107:
1095:
1086:
1029:
1009:Saurischians
998:saurolophine
982:
975:
955:
948:
932:saurolophine
917:
910:
882:
875:
842:
830:
821:
764:
715:
708:
675:
658:
649:
592:
572:
564:
555:
498:
457:
430:
418:
384:
382:
345:Year defined
332:Type section
285:-42.8; -52.2
246:-40.0; -66.6
129:Auca Mahuida
3328:11336/98097
3306:(6): 1447,
3287:Novas, F.E.
3221:Ameghiniana
3144:(2): 99–119
3016:11336/59544
2447:P. mazzonii
2328:dryolestoid
2300:dryolestoid
2273:dryolestoid
2245:dryolestoid
2043:Plesiosaurs
1945:Madtsoiidae
1921:Alamitophis
1142:Aeolosaurus
1096:crossed out
1075:Morphotaxon
1000:hadrosaur.
977:Willinakaqe
956:L. cholinoi
934:hadrosaur.
831:crossed out
810:Morphotaxon
716:P. cristata
710:Patagopelta
677:Ankylosaurs
668:Ankylosaurs
659:crossed out
638:Morphotaxon
565:crossed out
544:Morphotaxon
449:tidal flats
407:Description
283: /
244: /
219:Coordinates
42:73–69
3509:Categories
3485:2019-02-21
3434:2019-02-16
3383:2019-02-16
3333:2019-02-16
3279:2019-02-16
3239:2019-02-16
3207:2018-10-02
3179:2019-03-30
3148:2019-02-16
3091:: 105395.
3055:. 105935.
2938:: 105085.
2852:: 102915.
2513:References
2310:Barberenia
2076:Kawanectes
2015:L. cabazai
1654:azhdarchid
1600:Pterosaurs
1588:Pterosaurs
1560:Q. curriei
1526:N. antiqua
1482:ornithuran
1429:B. ultimus
1391:A. cabazai
1332:titanosaur
1318:R. muniozi
1312:Rocasaurus
1294:titanosaur
1280:P. powelli
1262:titanosaur
1232:titanosaur
1201:titanosaur
1159:titanosaur
1092:small text
1061:Ichnotaxon
844:Hadrosaurs
827:small text
796:Ichnotaxon
749:Hadrosaurs
655:small text
624:Ichnotaxon
561:small text
530:Ichnotaxon
453:evaporites
433:lacustrine
3113:252964524
3105:0195-6671
3025:0195-6671
2993:: 52–64.
2968:243482426
2960:0195-6671
2884:225123133
2876:0895-9811
2749:247122005
2713:254212751
2705:1477-2019
2661:214625754
2653:1477-2019
2418:Location
2344:S. walshi
2284:Brandonia
2134:Location
2063:Material
2057:Location
1996:Material
1990:Location
1902:P. parvus
1885:Material
1879:Location
1815:Teleostei
1698:Material
1692:Location
1633:Aerotitan
1620:Material
1614:Location
1493:Limenavis
1372:Material
1366:Location
1352:Theropods
1343:Theropods
1178:Bonatitan
1129:Material
1123:Location
1109:Sauropods
1030:Color key
1014:Sauropods
864:Material
858:Location
765:Color key
697:Material
691:Location
593:Color key
499:Color key
483:Dinosaurs
476:Dinosaurs
445:estuaries
426:anhydrite
422:limestone
393:Argentina
389:formation
317:Argentina
304:RĂo Negro
207:Limestone
197:sandstone
184:Lithology
176:Thickness
156:Underlies
3466:(2004),
3442:citation
3203:: 97–113
2471:See also
2427:Material
2214:Material
2211:Location
2143:Material
2054:Species
1987:Species
1876:Species
1859:Squamata
1689:Species
1611:Species
1363:Species
1120:Species
918:K. machi
855:Species
688:Species
337:Named by
213:Location
193:Mudstone
166:Overlies
3500:129-135
3407:Bibcode
3356:Bibcode
3308:Bibcode
2995:Bibcode
2940:Bibcode
2685:Bibcode
2633:Bibcode
2434:Images
2415:Species
2220:Images
2208:Species
2197:Mammals
2185:Mammals
2150:Images
2131:Species
2069:Images
2002:Images
1891:Images
1704:Images
1626:Images
1378:Images
1186:B.reigi
1135:Images
1068:Ootaxon
870:Images
803:Ootaxon
703:Images
631:Ootaxon
537:Ootaxon
441:fluvial
437:aeolian
314:Country
300:Neuquén
271:52°12′W
268:42°48′S
232:66°36′W
229:40°00′S
189:Primary
146:Unit of
111:↓
3476:
3111:
3103:
3023:
2966:
2958:
2882:
2874:
2747:
2711:
2703:
2659:
2651:
2539:
2404:Plants
2395:Plants
2176:frog.
2066:Notes
2051:Genus
1999:Notes
1984:Genus
1888:Notes
1873:Genus
1701:Notes
1686:Genus
1646:Upper
1623:Notes
1608:Genus
1566:Upper
1532:Upper
1520:Niebla
1505:Lower
1474:Lower
1435:Upper
1397:Lower
1375:Notes
1360:Genus
1324:Lower
1224:Lower
1193:Lower
1152:Lower
1132:Notes
1117:Genus
990:Lower
962:Lower
924:Upper
890:Lower
867:Notes
852:Genus
723:Lower
700:Notes
685:Genus
401:chelid
322:Extent
306:&
296:Region
3294:(PDF)
3191:(PDF)
3160:(PDF)
3109:S2CID
2964:S2CID
2880:S2CID
2745:S2CID
2709:S2CID
2657:S2CID
2431:Notes
2412:Genus
2217:Notes
2205:Genus
2174:Pipid
2147:Notes
2128:Genus
2120:Frogs
2100:Frogs
1087:Notes
1039:Taxon
822:Notes
774:Taxon
650:Notes
602:Taxon
556:Notes
508:Taxon
203:Other
3474:ISBN
3448:link
3101:ISSN
3021:ISSN
2956:ISSN
2872:ISSN
2701:ISSN
2649:ISSN
2537:ISBN
2289:sp.
2281:cf.
2108:and
1835:cf.
1672:Fish
447:and
439:and
383:The
348:1981
136:Type
50:Preęž’
3423:hdl
3415:doi
3372:hdl
3364:doi
3324:hdl
3316:doi
3268:hdl
3260:doi
3230:doi
3170:doi
3093:doi
3089:142
3057:doi
3053:162
3011:hdl
3003:doi
2948:doi
2936:131
2862:hdl
2854:doi
2850:105
2737:doi
2693:doi
2641:doi
1480:An
1442:An
474:of
391:in
3511::
3462:;
3458:;
3444:}}
3440:{{
3421:,
3413:,
3403:28
3401:,
3395:,
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3352:30
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3344:,
3322:,
3314:,
3304:32
3302:,
3296:,
3266:,
3256:11
3250:,
3226:49
3224:,
3218:,
3201:42
3199:,
3193:,
3162:,
3142:46
3140:,
3134:,
3107:.
3099:.
3087:.
3083:.
3069:^
3051:.
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3009:.
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2991:62
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2985:.
2962:.
2954:.
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2775:^
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2733:19
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2681:20
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2629:14
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2594:^
2573:^
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2326:A
2298:A
2271:A
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1157:A
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996:A
930:A
829:;
729:A
657:;
563:;
455:.
435:,
302:,
195:,
100:Pg
44:Ma
30::
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105:N
95:K
90:J
85:T
80:P
75:C
70:D
65:S
60:O
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39:~
34:-
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