2157:
2163:
2713:
136:
520:
118:
2743:
2719:
938:
793:
1006:
Breithaupt, B.H. (2001). "Passport-In-Time
Microvertebrate Fossil Project at the University of Wyoming Geological Museum: Late Cretaceous Paleontological Resources in the Public Eye." Pp. 107-112 in Santucci, V.L., and McClelland, L. (eds.), Proceedings of the 6th Fossil Resources Conference, United
481:
of the find. Cope himself searched the ridge near Black Butte and re-discovered Meek's site, finding huge bones protruding from the rocks near a coal vein. The bones were preserved in sand and clay sediments, packed with fossil sticks and leaves, indicating a heavily forested habitat. Cope later (in
425:
known to science from more than teeth, though relatively little is known about it. The original specimen consisted only of the animal's hip bones, hip vertebrae and ribs, and because these bones vary little between ceratopsid species, it is usually considered a
1281:
482:
1873) described the skeleton as "the wreck of one of the princes among giants." Cope and his team eventually recovered complete hip bones, sacral vertebrae, and several ribs from the animal. Later in 1872, Cope published a description and name for the animal,
490:
has been cited as an example of Cope's excitement with this discovery, which he considered, at the time, as the largest known land animal that had ever lived. Several years later, with the discovery of the giant
418:- 'wonder'. It is estimated to have been 15 metres (49 ft) long and weighed 17.5 tonnes (17.2 long tons; 19.3 short tons), and was seen as the largest land animal known at the time of its discovery.
1095:
2854:
655:, and Nelda Wright in the 1900s and 1930s, all of the members of Agathaumidae were found to be dubious, and the family name Ceratopsidae was preferred over Agathaumidae.
1046:
2808:
2874:
2795:
2859:
2884:
2156:
991:
626:
fossils. Marsh had already named a group for the horned dinosaurs, Ceratopsidae, but Cope did not recognize this family name as he believed
1478:
2162:
486:, or "marvelous forest-dweller," in reference to its great size and the environment revealed in the same rocks as its bones. The name
1412:
2736:
951:
784:
is a dubious taxon and cannot be referred beyond
Ceratopsidae. based on stratigraphy it is likely a member of Triceratopsini.
1198:
2879:
2869:
1181:
632:
could not be distinguished from other taxa; Cope erected a new name, Agathaumidae. Cope later named 2 more "Agathaumids",
2712:
1176:
1070:
1305:
135:
922:
471:
1569:
1471:
2849:
1687:
582:
856:
and named by Cope in 1889. The rest of the skull and body were based on an 1891 skeletal reconstruction of
2763:
983:
849:
467:
459:
405:
2864:
2821:
2746:
1596:
1065:
863:
567:
2718:
978:
Breithaupt, B.H. (1999). "First
Discovery of Dinosaurs in the American West". In Gillette, D.D. (ed.).
612:
into the group now recognized as
Ceratopsia until later in 1889, when Cope recognized that his genera
1258:
816:
1389:
1362:
1128:
1852:
1464:
1017:
821:
478:
287:
2572:
2522:
1954:
1193:
1104:
900:
652:
496:
130:
2826:
438:, but is difficult to compare to that genus because it is only known from postcranial remains.
2813:
2655:
2593:
2556:
2030:
1917:
1171:
987:
807:
648:
2685:
2483:
2308:
2010:
1705:
1216:
943:
664:
340:
2579:
2531:
2490:
2426:
2329:
2280:
1982:
1906:
1861:
1735:
1721:
1680:
1554:
1538:
867:
686:
Cope, 1872; 16 vertebrae from the tail, sacrum and back, a partial pelvis and several ribs
463:
394:
30:
2586:
2545:
2476:
2463:
2434:
2419:
2389:
2350:
2336:
2253:
2214:
2093:
2003:
1968:
1961:
1841:
1791:
1714:
1694:
1445:
1044:
Cope, E.D. (1872). "On the existence of
Dinosauria in the Transition Beds of Wyoming".
1007:
States
Department of Interior - National Park Services - Geological Resources Division.
917:
580:, another Cope taxon, was a Hadrosaurid. In 1883, with his description of the skull of
544:
belonged, though he noted that some of the remains were similar to the
British reptile
519:
475:
267:
254:
212:
117:
2843:
2664:
2643:
2613:
2604:
2504:
2398:
2343:
2322:
2294:
2287:
2273:
2266:
2072:
2061:
2054:
1996:
1989:
1975:
1933:
1868:
1834:
1805:
1758:
1335:
723:
634:
398:
68:
2678:
2629:
2622:
2538:
2511:
2497:
2405:
2378:
2371:
2364:
2315:
2301:
2193:
2180:
2111:
2100:
2085:
2047:
2039:
2021:
1926:
1892:
1875:
1827:
1820:
1776:
1581:
1529:
1433:
894:
885:
880:
832:
640:
558:
507:
428:
401:
376:
296:
241:
196:
2671:
2565:
2448:
2412:
2235:
1947:
1812:
1212:
913:
858:
844:
838:
826:
734:
660:
598:
552:
546:
533:
528:
501:
434:
43:
659:
itself was found to be a dubious
Ceratopsid by Hatcher and Lull, as well as by
2441:
2357:
1940:
1728:
1662:
1649:
1608:
1487:
933:
717:
422:
383:
228:
88:
53:
2786:
588:
492:
462:
and Henry Martyn
Bannister while they were looking for fossil shells in the
147:
93:
37:
1219:(1985). "The Munich specimen of Triceratops with a revision of the genus".
2780:
2242:
2228:
2221:
1784:
1520:
1511:
1259:
Species resolution in
Triceratops: cladistic and morphometric approaches.
804:
746:
644:, based on fragmentary fossils in 1892, expanding his group to 5 genera.
628:
618:
604:
576:
447:
386:
180:
167:
83:
78:
63:
58:
48:
2800:
2636:
1798:
1742:
1306:"Strange creatures of the past. Gigantic saurians of the reptilian age"
1108:
1090:
908:
was arbitrarily used for Knight's depiction and no parts were based on
871:
853:
792:
455:
390:
98:
73:
1505:
157:
2757:
1390:"The gigantic Ceratopsidae, or horned dinosaurs, of North America"
791:
744:(Cope, 1874) Hay, 1901; nomen dubium, alternative combination for
518:
379:
2761:
2178:
1647:
1498:
1460:
1096:
Proceedings of the Academy of Natural Sciences of Philadelphia
1456:
413:
358:
355:
884:
cervical spine, the scutes on the flank were indeterminate
701:(Marsh, 1889) Burkhardt, 1892; alternative combination for
364:
349:
1282:
Late Cretaceous dinosaurs from the Denver Basin, Colorado.
1243:
Neues Jahrbuch für Mineralogie, Geologie und Paläontologie
759:(Marsh, 1890) Lydekker, 1893; alternative combination of
346:
343:
1340:: The fossils behind Charles Knight's famous painting"
769:(Cope, 1889) Ballou, 1897; nomen dubium included with
550:
and very different from the corresponding elements of
1091:"On the characters of the skull in the Hadrosauridae"
474:'s Geological Survey of the Territories and notified
367:
866:. The armor was based on isolated elements from the
499:, it became clear to him that British forms such as
303:
2770:
2654:
2612:
2603:
2555:
2521:
2462:
2388:
2252:
2191:
2110:
2071:
2029:
2020:
1916:
1890:
1851:
1756:
1704:
1660:
1607:
1580:
1553:
361:
352:
1329:
1327:
1325:
1323:
1413:"The marvelous movie menagerie of Marcel Delgado"
1047:Proceedings of the American Philosophical Society
776:Unfortunately, due to the fragmentary nature of
570:, Cope's rival in the Bone Wars, suggested that
1299:
1297:
973:
971:
969:
967:
824:. The nasal horn and brow horns were based on
432:. It is provisionally considered a synonym of
1472:
732:Breithaupt, 1994; nomen dubium included with
404:, 66 million years ago). The name comes from
8:
1152:Fourth note on the Dinosauria of the Laramie
1068:(1882). "Classification of the Dinosauria".
1122:
1120:
1118:
622:were related due to Marsh's description of
608:could be Hadrosaurids. Cope did not assign
540:Cope originally did not know to what group
2855:Late Cretaceous dinosaurs of North America
2758:
2609:
2468:
2258:
2199:
2188:
2175:
2077:
2026:
1898:
1768:
1764:
1672:
1668:
1657:
1644:
1586:
1559:
1550:
1495:
1479:
1465:
1457:
1280:Carpenter, K., & Young, D. B. (2002).
1039:
1037:
1035:
116:
20:
1202:(Vol. 40). Geological Society of America.
1020:(1873). "The monster of Mammoth Buttes".
454:were first found in 1872 in southwestern
125:Illustration of the vertebrae and sacrum
878:in 1891: the spines on the frill were a
848:) respectively, which were found in the
1199:Hadrosaurian dinosaurs of North America
963:
1129:"The horned Dinosauria of the Laramie"
470:. Meek and Bannister were employed by
1276:
1274:
1237:Burkhardt, R., 1892. "Das Gehirn von
898:), and the spikes on the back were a
592:), Cope also suggested that his taxa
7:
1167:
1165:
1163:
1161:
874:that Marsh erroneously referred to
1262:Journal of Vertebrate Paleontology
14:
2875:Taxa named by Edward Drinker Cope
2742:
2741:
2717:
2711:
2161:
2155:
952:Timeline of ceratopsian research
936:
339:
134:
1394:The American Journal of Science
1371:The American Journal of Science
980:Vertebrate Paleontology In Utah
920:that appeared in the 1925 film
901:Pachycephalosaurus wyomingensis
690:Species previously referred to
1196:, & Wright, N. E. (1942).
1:
2860:Fossil taxa described in 1872
1182:US Government Printing Office
2885:Late Cretaceous ceratopsians
1071:American Journal of Science
839:"Monoclonius" recurvicornis
787:
2901:
912:. His painting inspired a
842:(unnamed genus similar to
799:by Charles R. Knight, 1897
715:Cope, 1874; included with
472:Ferdinand Vandeveer Hayden
458:. They were discovered by
414:
409:
16:Extinct genus of dinosaurs
2731:
2709:
2471:
2261:
2202:
2187:
2174:
2152:
2080:
1901:
1771:
1767:
1675:
1671:
1656:
1643:
1589:
1562:
1549:
1494:
904:squamosal horn. The name
895:Ankylosaurus magniventris
827:"Monoclonius" sphenocerus
820:under the supervision of
466:near the Black Butte and
323:
318:
302:
295:
131:Scientific classification
129:
124:
115:
23:
881:Denversaurus schlessmani
812:"Agathaumas sphenocerus"
797:"Agathaumas sphenocerus"
1688:Micropachycephalosaurus
1417:Movie Collector's World
1334:Greenfield, T. (2023).
1257:Forster, C. A. (1996).
1133:The American Naturalist
771:Monoclonius sphenocerus
703:Triceratops flabellatus
375:; "great wonder") is a
1450:The Dinosaur Scrapbook
1285:Rocky Mountain Geology
1239:Agathaumas flabellatus
984:Utah Geological Survey
850:Judith River Formation
800:
750:; possible synonym of
647:After reassessment by
641:Claorhynchus trihedrus
537:
523:Cope's 1890 sketch of
515:Classification history
460:Fielding Bradford Meek
2822:Paleobiology Database
1304:Ballou, W.H. (1897).
864:Othniel Charles Marsh
830:(possible synonym of
795:
780:’ holotype specimen,
778:Agathaumas sylvestris
684:Agathaumas sylvestris
568:Othniel Charles Marsh
522:
484:Agathaumas sylvestris
308:Agathaumas sylvestris
2880:Maastrichtian genera
2870:Ornithischian genera
1438:The Horned Dinosaurs
1411:Painter, D. (2011).
1388:Marsh, O.C. (1891).
1361:Marsh, O.C. (1891).
1344:Prehistoric Magazine
1310:The Century Magazine
1150:Cope, E. D. (1892).
1089:Cope, E. D. (1883).
1022:Pennsylvania Monthly
833:Centrosaurus apertus
817:The Century Magazine
788:Knight's restoration
761:Triceratops prorsus,
752:Triceratops horridus
722:by Cope, dubious at
707:Triceratops horridus
1853:Archaeoceratopsidae
1127:Cope, E.D. (1889).
888:osteoderms (either
859:Triceratops prorsus
822:Edward Drinker Cope
747:Polyonax mortuarius
635:Manospondylus gigas
511:were land animals.
479:Edward Drinker Cope
2573:Crittendenceratops
2523:Albertaceratopsini
986:. pp. 59–65.
814:for an article in
801:
705:; synonymous with
653:Richard Swann Lull
538:
497:Morrison Formation
2837:
2836:
2764:Taxon identifiers
2755:
2754:
2727:
2726:
2707:
2706:
2703:
2702:
2699:
2698:
2695:
2694:
2656:Pachyrhinosaurini
2594:Yehuecauhceratops
2557:Nasutoceratopsini
2458:
2457:
2170:
2169:
2150:
2149:
2146:
2145:
2142:
2141:
2138:
2137:
2134:
2133:
2130:
2129:
2031:Protoceratopsidae
1918:Leptoceratopsidae
1886:
1885:
1752:
1751:
1639:
1638:
1635:
1634:
1631:
1630:
1627:
1626:
993:978-1-55791-634-1
916:model created by
808:Charles R. Knight
667:who placed it as
649:John Bell Hatcher
495:dinosaurs of the
421:It was the first
330:
329:
291:
2892:
2830:
2829:
2817:
2816:
2804:
2803:
2791:
2790:
2789:
2759:
2745:
2744:
2722:
2721:
2715:
2686:Pachyrhinosaurus
2610:
2484:Machairoceratops
2469:
2309:Coahuilaceratops
2259:
2200:
2189:
2176:
2165:
2160:
2159:
2078:
2027:
2011:Zhuchengceratops
1899:
1769:
1765:
1706:Chaoyangsauridae
1673:
1669:
1658:
1645:
1587:
1560:
1551:
1544:
1543:
1496:
1481:
1474:
1467:
1458:
1453:
1441:
1425:
1424:
1408:
1402:
1401:
1385:
1379:
1378:
1363:"Restoration of
1358:
1352:
1351:
1331:
1318:
1317:
1301:
1292:
1278:
1269:
1255:
1249:
1235:
1229:
1228:
1209:
1203:
1191:
1185:
1169:
1156:
1155:
1147:
1141:
1140:
1124:
1113:
1112:
1086:
1080:
1079:
1062:
1056:
1055:
1041:
1030:
1029:
1014:
1008:
1004:
998:
997:
975:
946:
944:Dinosaurs portal
941:
940:
939:
665:Peter Wellnhofer
417:
416:
411:
374:
373:
370:
369:
366:
363:
360:
357:
354:
351:
348:
345:
305:
286:
279:
266:
253:
240:
227:
211:
195:
139:
138:
120:
110:
40:
29:Temporal range:
21:
2900:
2899:
2895:
2894:
2893:
2891:
2890:
2889:
2840:
2839:
2838:
2833:
2825:
2820:
2812:
2807:
2799:
2794:
2785:
2784:
2779:
2766:
2756:
2751:
2723:
2716:
2691:
2650:
2599:
2580:Furcatoceratops
2551:
2532:Albertaceratops
2517:
2491:Menefeeceratops
2454:
2427:Tatankaceratops
2384:
2330:Mercuriceratops
2281:Arrhinoceratops
2248:
2196:
2183:
2166:
2154:
2126:
2106:
2067:
2016:
1983:Montanoceratops
1912:
1907:Graciliceratops
1895:
1882:
1862:Archaeoceratops
1847:
1761:
1748:
1736:Xuanhuaceratops
1722:Hualianceratops
1700:
1681:Albalophosaurus
1665:
1652:
1623:
1603:
1576:
1570:Avemetatarsalia
1555:Avemetatarsalia
1545:
1539:Marginocephalia
1501:
1500:
1490:
1485:
1444:
1432:
1429:
1428:
1410:
1409:
1405:
1400:(242): 167–178.
1387:
1386:
1382:
1377:(244): 339–342.
1360:
1359:
1355:
1333:
1332:
1321:
1303:
1302:
1295:
1279:
1272:
1256:
1252:
1236:
1232:
1211:
1210:
1206:
1192:
1188:
1170:
1159:
1149:
1148:
1144:
1139:(272): 715–717.
1126:
1125:
1116:
1088:
1087:
1083:
1064:
1063:
1059:
1043:
1042:
1033:
1016:
1015:
1011:
1005:
1001:
994:
977:
976:
965:
960:
942:
937:
935:
932:
868:Lance Formation
790:
677:
517:
464:Lance Formation
444:
395:Late Cretaceous
342:
338:
314:
311:
285:
277:
264:
251:
238:
225:
209:
193:
133:
111:
109:
108:
107:
106:
101:
96:
91:
86:
81:
76:
71:
66:
61:
56:
51:
46:
35:
34:
31:Late Cretaceous
27:
17:
12:
11:
5:
2898:
2896:
2888:
2887:
2882:
2877:
2872:
2867:
2862:
2857:
2852:
2850:Chasmosaurines
2842:
2841:
2835:
2834:
2832:
2831:
2818:
2805:
2792:
2776:
2774:
2768:
2767:
2762:
2753:
2752:
2750:
2749:
2739:
2732:
2729:
2728:
2725:
2724:
2710:
2708:
2705:
2704:
2701:
2700:
2697:
2696:
2693:
2692:
2690:
2689:
2682:
2675:
2668:
2660:
2658:
2652:
2651:
2649:
2648:
2640:
2633:
2626:
2618:
2616:
2607:
2601:
2600:
2598:
2597:
2590:
2587:Nasutoceratops
2583:
2576:
2569:
2561:
2559:
2553:
2552:
2550:
2549:
2546:Medusaceratops
2542:
2535:
2527:
2525:
2519:
2518:
2516:
2515:
2508:
2501:
2494:
2487:
2480:
2477:Diabloceratops
2472:
2466:
2464:Centrosaurinae
2460:
2459:
2456:
2455:
2453:
2452:
2445:
2438:
2435:Titanoceratops
2431:
2423:
2420:Regaliceratops
2416:
2409:
2402:
2394:
2392:
2390:Triceratopsini
2386:
2385:
2383:
2382:
2375:
2368:
2361:
2354:
2351:Sierraceratops
2347:
2340:
2337:Navajoceratops
2333:
2326:
2319:
2312:
2305:
2298:
2291:
2284:
2277:
2270:
2262:
2256:
2254:Chasmosaurinae
2250:
2249:
2247:
2246:
2239:
2232:
2225:
2218:
2215:Brachyceratops
2211:
2203:
2197:
2192:
2185:
2184:
2179:
2172:
2171:
2168:
2167:
2153:
2151:
2148:
2147:
2144:
2143:
2140:
2139:
2136:
2135:
2132:
2131:
2128:
2127:
2125:
2124:
2123:
2122:
2116:
2114:
2108:
2107:
2105:
2104:
2097:
2094:Turanoceratops
2090:
2081:
2075:
2069:
2068:
2066:
2065:
2058:
2051:
2044:
2035:
2033:
2024:
2018:
2017:
2015:
2014:
2007:
2004:Unescoceratops
2000:
1993:
1986:
1979:
1972:
1969:Ischioceratops
1965:
1962:Gryphoceratops
1958:
1951:
1944:
1937:
1930:
1922:
1920:
1914:
1913:
1911:
1910:
1902:
1896:
1891:
1888:
1887:
1884:
1883:
1881:
1880:
1872:
1865:
1857:
1855:
1849:
1848:
1846:
1845:
1842:Sasayamagnomus
1838:
1831:
1824:
1817:
1809:
1802:
1795:
1792:Auroraceratops
1788:
1781:
1772:
1762:
1757:
1754:
1753:
1750:
1749:
1747:
1746:
1739:
1732:
1725:
1718:
1715:Chaoyangsaurus
1710:
1708:
1702:
1701:
1699:
1698:
1695:Psittacosaurus
1691:
1684:
1676:
1666:
1661:
1654:
1653:
1648:
1641:
1640:
1637:
1636:
1633:
1632:
1629:
1628:
1625:
1624:
1622:
1621:
1620:
1619:
1613:
1611:
1605:
1604:
1602:
1601:
1600:
1599:
1590:
1584:
1578:
1577:
1575:
1574:
1573:
1572:
1563:
1557:
1547:
1546:
1542:
1541:
1532:
1523:
1514:
1508:
1499:
1492:
1491:
1486:
1484:
1483:
1476:
1469:
1461:
1455:
1454:
1442:
1427:
1426:
1403:
1380:
1353:
1319:
1293:
1270:
1250:
1230:
1217:Wellnhofer, P.
1204:
1186:
1177:The ceratopsia
1172:Hatcher, J. B.
1157:
1142:
1114:
1081:
1057:
1031:
1009:
999:
992:
962:
961:
959:
956:
955:
954:
948:
947:
931:
928:
923:The Lost World
918:Marcel Delgado
789:
786:
774:
773:
767:A. sphenocerus
764:
754:
739:
730:A. monoclonius
727:
710:
699:A. flabellatus
688:
687:
676:
673:
516:
513:
476:paleontologist
443:
440:
389:that lived in
328:
327:
321:
320:
316:
315:
312:
300:
299:
293:
292:
275:
271:
270:
268:Triceratopsini
262:
258:
257:
255:Chasmosaurinae
249:
245:
244:
236:
232:
231:
223:
216:
215:
213:Neornithischia
207:
200:
199:
191:
184:
183:
178:
171:
170:
165:
161:
160:
155:
151:
150:
145:
141:
140:
127:
126:
122:
121:
113:
112:
104:
103:
102:
97:
92:
87:
82:
77:
72:
67:
62:
57:
52:
47:
42:
41:
28:
15:
13:
10:
9:
6:
4:
3:
2:
2897:
2886:
2883:
2881:
2878:
2876:
2873:
2871:
2868:
2866:
2863:
2861:
2858:
2856:
2853:
2851:
2848:
2847:
2845:
2828:
2823:
2819:
2815:
2810:
2806:
2802:
2797:
2793:
2788:
2782:
2778:
2777:
2775:
2773:
2769:
2765:
2760:
2748:
2740:
2738:
2734:
2733:
2730:
2720:
2714:
2688:
2687:
2683:
2681:
2680:
2676:
2674:
2673:
2669:
2667:
2666:
2665:Achelousaurus
2662:
2661:
2659:
2657:
2653:
2646:
2645:
2644:Styracosaurus
2641:
2639:
2638:
2634:
2632:
2631:
2627:
2625:
2624:
2620:
2619:
2617:
2615:
2614:Centrosaurini
2611:
2608:
2606:
2605:Eucentrosaura
2602:
2596:
2595:
2591:
2589:
2588:
2584:
2582:
2581:
2577:
2575:
2574:
2570:
2568:
2567:
2563:
2562:
2560:
2558:
2554:
2548:
2547:
2543:
2541:
2540:
2536:
2534:
2533:
2529:
2528:
2526:
2524:
2520:
2514:
2513:
2509:
2507:
2506:
2505:Wendiceratops
2502:
2500:
2499:
2495:
2493:
2492:
2488:
2486:
2485:
2481:
2479:
2478:
2474:
2473:
2470:
2467:
2465:
2461:
2451:
2450:
2446:
2444:
2443:
2439:
2437:
2436:
2432:
2429:
2428:
2424:
2422:
2421:
2417:
2415:
2414:
2410:
2408:
2407:
2403:
2401:
2400:
2399:Eotriceratops
2396:
2395:
2393:
2391:
2387:
2381:
2380:
2376:
2374:
2373:
2369:
2367:
2366:
2362:
2360:
2359:
2355:
2353:
2352:
2348:
2346:
2345:
2344:Pentaceratops
2341:
2339:
2338:
2334:
2332:
2331:
2327:
2325:
2324:
2323:Kosmoceratops
2320:
2318:
2317:
2313:
2311:
2310:
2306:
2304:
2303:
2299:
2297:
2296:
2295:Bravoceratops
2292:
2290:
2289:
2288:Bisticeratops
2285:
2283:
2282:
2278:
2276:
2275:
2274:Anchiceratops
2271:
2269:
2268:
2267:Agujaceratops
2264:
2263:
2260:
2257:
2255:
2251:
2245:
2244:
2240:
2238:
2237:
2233:
2231:
2230:
2226:
2224:
2223:
2219:
2217:
2216:
2212:
2210:
2209:
2205:
2204:
2201:
2198:
2195:
2190:
2186:
2182:
2177:
2173:
2164:
2158:
2120:
2119:
2118:
2117:
2115:
2113:
2109:
2103:
2102:
2098:
2096:
2095:
2091:
2088:
2087:
2083:
2082:
2079:
2076:
2074:
2073:Ceratopsoidea
2070:
2064:
2063:
2062:Protoceratops
2059:
2057:
2056:
2055:Breviceratops
2052:
2050:
2049:
2045:
2042:
2041:
2037:
2036:
2034:
2032:
2028:
2025:
2023:
2019:
2013:
2012:
2008:
2006:
2005:
2001:
1999:
1998:
1997:Udanoceratops
1994:
1992:
1991:
1990:Prenoceratops
1987:
1985:
1984:
1980:
1978:
1977:
1976:Leptoceratops
1973:
1971:
1970:
1966:
1964:
1963:
1959:
1957:
1956:
1952:
1950:
1949:
1945:
1943:
1942:
1938:
1936:
1935:
1934:Bainoceratops
1931:
1929:
1928:
1924:
1923:
1921:
1919:
1915:
1909:
1908:
1904:
1903:
1900:
1897:
1894:
1889:
1878:
1877:
1873:
1871:
1870:
1869:Helioceratops
1866:
1864:
1863:
1859:
1858:
1856:
1854:
1850:
1844:
1843:
1839:
1837:
1836:
1835:Mosaiceratops
1832:
1830:
1829:
1825:
1823:
1822:
1818:
1815:
1814:
1810:
1808:
1807:
1806:Koreaceratops
1803:
1801:
1800:
1796:
1794:
1793:
1789:
1787:
1786:
1782:
1779:
1778:
1774:
1773:
1770:
1766:
1763:
1760:
1759:Neoceratopsia
1755:
1745:
1744:
1740:
1738:
1737:
1733:
1731:
1730:
1726:
1724:
1723:
1719:
1717:
1716:
1712:
1711:
1709:
1707:
1703:
1697:
1696:
1692:
1690:
1689:
1685:
1683:
1682:
1678:
1677:
1674:
1670:
1667:
1664:
1659:
1655:
1651:
1646:
1642:
1617:
1616:
1615:
1614:
1612:
1610:
1606:
1598:
1594:
1593:
1592:
1591:
1588:
1585:
1583:
1579:
1571:
1567:
1566:
1565:
1564:
1561:
1558:
1556:
1552:
1548:
1540:
1536:
1533:
1531:
1527:
1524:
1522:
1518:
1515:
1513:
1509:
1507:
1503:
1502:
1497:
1493:
1489:
1482:
1477:
1475:
1470:
1468:
1463:
1462:
1459:
1451:
1447:
1443:
1439:
1435:
1434:Dodson, Peter
1431:
1430:
1422:
1418:
1414:
1407:
1404:
1399:
1395:
1391:
1384:
1381:
1376:
1372:
1368:
1366:
1357:
1354:
1349:
1345:
1341:
1339:
1330:
1328:
1326:
1324:
1320:
1315:
1311:
1307:
1300:
1298:
1294:
1291:(2), 237-254.
1290:
1286:
1283:
1277:
1275:
1271:
1268:(2), 259-270.
1267:
1263:
1260:
1254:
1251:
1247:
1244:
1240:
1234:
1231:
1226:
1222:
1218:
1214:
1213:Ostrom, J. H.
1208:
1205:
1201:
1200:
1195:
1190:
1187:
1183:
1179:
1178:
1173:
1168:
1166:
1164:
1162:
1158:
1153:
1146:
1143:
1138:
1134:
1130:
1123:
1121:
1119:
1115:
1110:
1106:
1102:
1098:
1097:
1092:
1085:
1082:
1078:(133): 81–86.
1077:
1073:
1072:
1067:
1061:
1058:
1053:
1049:
1048:
1040:
1038:
1036:
1032:
1027:
1023:
1019:
1013:
1010:
1003:
1000:
995:
989:
985:
981:
974:
972:
970:
968:
964:
957:
953:
950:
949:
945:
934:
929:
927:
925:
924:
919:
915:
911:
910:A. sylvestris
907:
903:
902:
897:
896:
891:
887:
886:ankylosaurian
883:
882:
877:
873:
869:
865:
861:
860:
855:
851:
847:
846:
841:
840:
835:
834:
829:
828:
823:
819:
818:
813:
809:
806:
798:
794:
785:
783:
779:
772:
768:
765:
762:
758:
755:
753:
749:
748:
743:
742:A. mortuarius
740:
738:
736:
731:
728:
726:family level.
725:
724:Hadrosauridae
721:
719:
714:
711:
708:
704:
700:
697:
696:
695:
693:
685:
682:
681:
680:
674:
672:
670:
666:
662:
658:
654:
650:
645:
643:
642:
637:
636:
631:
630:
625:
621:
620:
615:
611:
607:
606:
601:
600:
595:
591:
590:
585:
584:
583:Edmontosaurus
579:
578:
574:, along with
573:
569:
565:
561:
560:
555:
554:
549:
548:
543:
536:
535:
530:
526:
521:
514:
512:
510:
509:
504:
503:
498:
494:
489:
485:
480:
477:
473:
469:
465:
461:
457:
453:
449:
441:
439:
437:
436:
431:
430:
424:
419:
412:- 'much' and
407:
406:Ancient Greek
403:
400:
399:Maastrichtian
396:
392:
388:
385:
381:
378:
372:
336:
335:
326:
322:
317:
310:
309:
301:
298:
294:
289:
284:
283:
276:
273:
272:
269:
263:
260:
259:
256:
250:
247:
246:
243:
237:
234:
233:
230:
224:
221:
218:
217:
214:
208:
205:
202:
201:
198:
192:
189:
186:
185:
182:
179:
176:
173:
172:
169:
166:
163:
162:
159:
156:
153:
152:
149:
146:
143:
142:
137:
132:
128:
123:
119:
114:
100:
95:
90:
85:
80:
75:
70:
65:
60:
55:
50:
45:
39:
32:
26:
22:
19:
2865:Nomina dubia
2771:
2684:
2679:Stellasaurus
2677:
2670:
2663:
2642:
2635:
2630:Coronosaurus
2628:
2623:Centrosaurus
2621:
2592:
2585:
2578:
2571:
2564:
2544:
2539:Lokiceratops
2537:
2530:
2512:Xenoceratops
2510:
2503:
2498:Sinoceratops
2496:
2489:
2482:
2475:
2447:
2440:
2433:
2425:
2418:
2411:
2406:Nedoceratops
2404:
2397:
2379:Vagaceratops
2377:
2372:Utahceratops
2370:
2365:Terminocavus
2363:
2356:
2349:
2342:
2335:
2328:
2321:
2316:Judiceratops
2314:
2307:
2302:Chasmosaurus
2300:
2293:
2286:
2279:
2272:
2265:
2241:
2234:
2227:
2220:
2213:
2207:
2206:
2194:Ceratopsidae
2181:Ceratopsidae
2112:Ceratopsidae
2101:Zuniceratops
2099:
2092:
2086:Ajkaceratops
2084:
2060:
2053:
2048:Bagaceratops
2046:
2040:Ajkaceratops
2038:
2022:Coronosauria
2009:
2002:
1995:
1988:
1981:
1974:
1967:
1960:
1953:
1946:
1939:
1932:
1927:Asiaceratops
1925:
1905:
1893:Euceratopsia
1876:Yamaceratops
1874:
1867:
1860:
1840:
1833:
1828:Microceratus
1826:
1821:Liaoceratops
1819:
1811:
1804:
1797:
1790:
1783:
1777:Ajkaceratops
1775:
1741:
1734:
1727:
1720:
1713:
1693:
1686:
1679:
1597:Ornithischia
1582:Ornithischia
1534:
1530:Ornithischia
1525:
1516:
1449:
1437:
1420:
1416:
1406:
1397:
1396:. Series 3.
1393:
1383:
1374:
1373:. Series 3.
1370:
1364:
1356:
1347:
1343:
1337:
1313:
1309:
1288:
1284:
1265:
1261:
1253:
1245:
1242:
1238:
1233:
1224:
1220:
1207:
1197:
1189:
1175:
1151:
1145:
1136:
1132:
1100:
1094:
1084:
1075:
1069:
1066:Marsh, O. C.
1060:
1051:
1045:
1025:
1021:
1012:
1002:
979:
921:
909:
905:
899:
893:
890:Denversaurus
889:
879:
875:
857:
843:
837:
831:
825:
815:
811:
802:
796:
781:
777:
775:
770:
766:
763:unused since
760:
756:
751:
745:
741:
733:
729:
720:occidentalis
716:
712:
706:
702:
698:
691:
689:
683:
678:
668:
656:
646:
639:
633:
627:
623:
617:
613:
609:
603:
597:
593:
587:
581:
575:
571:
566:). In 1882,
563:
559:Dryptosaurus
557:
551:
545:
541:
539:
532:
524:
508:Pelorosaurus
506:
500:
487:
483:
468:Bitter Creek
451:
445:
433:
429:nomen dubium
427:
420:
333:
332:
331:
324:
307:
306:
297:Type species
281:
280:
242:Ceratopsidae
219:
203:
197:Ornithischia
187:
174:
24:
18:
2672:Einiosaurus
2566:Avaceratops
2449:Triceratops
2413:Ojoceratops
2236:Monoclonius
1948:Ferrisaurus
1813:Kulceratops
1365:Triceratops
1336:"Armor for
1316:(1): 15–23.
1194:Lull, R. S.
1180:(No. 310).
914:stop motion
876:Triceratops
845:Einiosaurus
805:paleoartist
737:sphenocerus
735:Monoclonius
669:Triceratops
661:John Ostrom
624:Triceratops
614:Monoclonius
599:Monoclonius
553:Hadrosaurus
547:Cetiosaurus
534:Triceratops
529:ceratopsian
502:Cetiosaurus
450:remains of
435:Triceratops
423:ceratopsian
393:during the
382:of a large
248:Subfamily:
2844:Categories
2772:Agathaumas
2735:See also:
2442:Torosaurus
2358:Spiclypeus
2208:Agathaumas
2121:see below↓
1941:Cerasinops
1729:Stenopelix
1663:Ceratopsia
1650:Ceratopsia
1618:see below↓
1609:Ceratopsia
1521:Dinosauria
1488:Ceratopsia
1338:Agathaumas
1227:: 111–158.
1221:Zitteliana
1103:: 97–107.
1054:: 481–483.
1028:: 521–534.
1018:Cope, E.D.
958:References
906:Agathaumas
782:Agathaumas
757:A. prorsus
718:Thespesius
692:Agathaumas
657:Agathaumas
610:Agathaumas
594:Agathaumas
572:Agathaumas
542:Agathaumas
525:Agathaumas
488:Agathaumas
452:Agathaumas
384:ceratopsid
334:Agathaumas
313:Cope, 1872
282:Agathaumas
229:Ceratopsia
181:Dinosauria
25:Agathaumas
1504:Kingdom:
1446:Glut, Don
803:In 1897,
589:Diclonius
531:based on
325:See text
154:Kingdom:
148:Eukaryota
2781:Wikidata
2747:Category
2737:Timeline
2243:Polyonax
2229:Dysganus
2222:Ceratops
1785:Aquilops
1512:Chordata
1510:Phylum:
1506:Animalia
1436:(1996).
1423:: 17–19.
1350:: 24–30.
1241:Marsh".
1174:(1907).
930:See also
810:painted
629:Ceratops
619:Polyonax
605:Dysganus
577:Cionodon
493:sauropod
448:holotype
387:dinosaur
319:Species
235:Family:
168:Chordata
164:Phylum:
158:Animalia
144:Domain:
36:66
2814:1023390
2801:4823148
2787:Q131751
2637:Spinops
1955:Gremlin
1743:Yinlong
1248:: 71-72
1109:4060861
872:Wyoming
854:Montana
713:A. milo
675:Species
564:Laelaps
456:Wyoming
442:History
391:Wyoming
377:dubious
274:Genus:
261:Tribe:
105:↓
1107:
990:
836:) and
679:Type:
602:, and
397:(late
290:, 1872
2827:53038
2809:IRMNG
1535:Clade
1526:Clade
1517:Clade
1105:JSTOR
527:as a
415:θαυμα
402:stage
380:genus
220:Clade
204:Clade
188:Clade
175:Clade
2796:GBIF
1595:see
1568:see
1246:1892
988:ISBN
671:sp.
663:and
638:and
616:and
556:and
505:and
446:The
410:αγαν
288:Cope
44:PreꞒ
1799:Beg
1421:755
892:or
870:in
862:by
852:in
2846::
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