466:
2100:
138:
455:
2107:
116:
2265:
429:
1317:
1322:
323:
2094:
600:
An alternative reconstruction of the skull was proposed in 2024 by
Valentin Buffa and colleagues, who reidentified many of the bones in Pritchard and Nesbitt's original reconstruction. Most notably, they did not identify any of the preserved bones as those of the rostrum and so could not confirm if
605:
was indeed toothless. They also reinterpreted several of the bones around the eyes, namely identifying the maxilla as a jugal and the former jugal as a lacrimal. This noticeably decreases the size of the orbit from the original reconstruction. They also altered the position of the postorbital,
488:
However, the most notable feature of AMNH FARB 30834 is its skull, which as initially reconstructed by
Pritchard and Nesbitt shares many similarities with the skulls of modern birds. The snout is slender and tapering, similar to that of
606:
placing it more behind the postfrontal than laterally, decreasing the overall width of the rear skull. This correspondingly pushes back the squamosal and quadrate and creates a steeper incline down to the jaw joint.
536:, which only have the quadrate framed from the side. The quadrate itself is also stouter than that of neodiapsids and lacks a concave rear edge and a dorsal extension which articulates with the squamosal. The
436:
AMNH FARB 30834 can be recognized as a drepanosaur due to several traits of its vertebrae. The articular surfaces of its vertebral centres are heterocoelous (saddle-shaped). The neural spines are
511:
bones are both broad and thick, creating a high and domed cranium. According to the digital endocast of the specimen, this domed cranium held an enlarged brain with large optic lobes.
401:. Multiple other drepanosaur vertebrae and limb fragments have also been found in the block, although it is unclear whether they belong to the same specimen as AMNH FARB 308344.
388:, these blocks are now known to contain a multitude of different Triassic reptiles. AMNH FARB 30834 was uncovered during the preparation of a block containing the holotype of
2363:
404:
Despite AMNH FARB 30834 being disarticulated and partially covered by the rock matrix, many of its bones are well-preserved and the specimen as a whole was
2317:
2368:
551:
is massive, similar to the condition in other early reptiles. Combined with a straight quadrate without a tympanic crest, this indicates that
837:
2373:
378:
666:"A bird-like skull in a Triassic diapsid reptile increases heterogeneity of the morphological and phylogenetic radiation of Diapsida"
408:
scanned, revealing elements hidden under rock. This scan allowed the skull to be reconstructed in 3D using digital software. An
2099:
437:
1863:
2106:
137:
1957:
2009:
731:"Extreme convergence in the body plans of an early suchian (Archosauria) and ornithomimid dinosaurs (Theropoda)"
928:
830:
1915:
955:
2285:
2052:
1889:
1276:
465:
634:. An arboreal lifestyle has been previously proposed for other members of the drepanosauromorph lineage.
507:
bones (above and behind the eyes) project outwards, forcing the orbits to face forwards. The frontal and
2358:
2330:
1837:
1316:
541:
405:
1321:
2093:
677:
623:
229:
1251:
2268:
1481:
823:
615:
2207:
1852:
1636:
1591:
1554:
1369:
1223:
537:
132:
2335:
1782:
2197:
2151:
1946:
768:
750:
711:
693:
381:
field parties during the 1940s. Long believed to only contain multiple specimens of the early
1998:
1620:
1390:
1072:
799:
758:
742:
701:
685:
619:
504:
366:
275:
1973:
1766:
1723:
1629:
1410:
1142:
913:
491:
454:
208:
681:
2227:
1904:
1673:
1650:
1081:
1038:
940:
763:
730:
706:
665:
515:
377:
stages of the
Triassic. Various unprepared blocks from this locality were excavated by
115:
2352:
2202:
2156:
2146:
2141:
2041:
1989:
1878:
1797:
1790:
1694:
1687:
1582:
1531:
1471:
1380:
1265:
1237:
1207:
1193:
1179:
523:
519:
508:
442:
440:
short and strongly anterodorsally inclined. These features closely resemble those of
395:
362:
279:
73:
2237:
2212:
2192:
2182:
1966:
1826:
1708:
1701:
1561:
1521:
1431:
1420:
1400:
1133:
1103:
1095:
1088:
815:
586:(the only other drepanosaurs with preserved skulls) due to the following features:
572:
500:
398:
312:
237:
428:
2308:
804:
787:
614:
The binocular eyes and enlarged brain of
Avicranium are likely adaptations to an
2217:
2161:
1932:
1811:
1775:
1752:
1745:
1715:
1664:
1606:
1545:
1451:
1441:
1244:
1111:
582:
533:
528:
354:
349:
322:
268:
195:
48:
559:(eardrum), and that the drepanosauromorph lineage evolved before more advanced
518:
is tall and anteroposteriorly broad, and possesses bony plates which frame the
2242:
2232:
2187:
2029:
1738:
1599:
1511:
1501:
1491:
1230:
1186:
1149:
1058:
1021:
1008:
967:
846:
358:
93:
58:
754:
697:
618:
lifestyle, as such a lifestyle requires advanced sensory processing, such as
343:
is AMNH FARB 30834, a disarticulated skull attached to a few cervical (neck)
2018:
1730:
1643:
1156:
1048:
627:
149:
98:
42:
772:
746:
715:
2302:
2222:
1977:
1804:
1568:
1170:
888:
882:
514:
On the other hand, the skull also possesses many primitive features. The
409:
382:
374:
344:
336:
169:
88:
83:
68:
63:
53:
34:
2322:
689:
630:
and modern birds, which would require similar sensory processing during
622:
and three-dimensional navigation. It is very likely that these features
596:
Cervical neural spines which are approximately as wide as they are long.
2177:
1936:
1352:
1339:
1288:
1216:
1119:
897:
852:
560:
556:
390:
271:
179:
103:
78:
2061:
1927:
876:
631:
564:
548:
370:
159:
30:
2279:
792:
and the paraphyly of bird-headed reptiles (Diapsida: 'Avicephala')"
478:
as reconstructed by
Pritchard & Nesbitt (2017), top, and Buffa
1461:
427:
413:
321:
316:
304:
297:
264:
2025:
301:
2283:
2123:
1337:
1006:
869:
819:
420:
has the most well-preserved skull material of any drepanosaur.
522:
from the side and rear. This is similar to the condition in
369:' of the Chinle formation, which corresponds to the late
786:
Buffa, V.; Frey, E.; Steyer, J.-S.; Laurin, M. (2024).
735:
Proceedings of the Royal
Society B: Biological Sciences
664:
Pritchard, Adam C.; Nesbitt, Sterling J. (2017-10-01).
307:", in reference to its unusual bird-like skull, while "
1901:
1875:
1849:
1823:
1763:
1661:
1617:
1579:
1542:
1527:
1517:
1507:
1497:
1487:
1477:
1467:
1457:
1447:
1437:
1427:
1416:
1406:
1396:
1386:
1376:
1365:
1262:
1204:
1167:
1130:
1069:
1054:
1044:
1034:
2292:
2170:
2134:
2040:
1997:
1988:
1945:
1926:
1900:
1874:
1848:
1822:
1762:
1660:
1616:
1578:
1541:
1350:
1287:
1261:
1203:
1166:
1129:
1068:
1019:
966:
939:
912:
729:Nesbitt, Sterling J; Norell, Mark A (2006-05-07).
540:of the braincase possesses a deep pit, while the
659:
657:
655:
653:
651:
649:
647:
416:was also digitally constructed from the skull.
831:
593:A tall and triangular retroarticular process.
555:(and presumably other drepanosaurs) lacked a
8:
2280:
2131:
2120:
1994:
1942:
1358:
1347:
1334:
1027:
1016:
1003:
945:
918:
909:
866:
838:
824:
816:
114:
20:
803:
796:Zoological Journal of the Linnean Society
762:
705:
326:AMNH FARB 30834, mostly obscured by rock.
2364:Late Triassic reptiles of North America
643:
570:Avicranium can be distinguished from
7:
432:The micro-CT scan of AMNH FARB 30834
499:by being completely toothless. The
379:American Museum of Natural History
14:
2264:
2263:
2105:
2098:
2092:
1320:
1315:
464:
453:
136:
567:) acquired tympanic membranes.
347:. This specimen hails from the
311:" references Silvio Renesto, a
590:The complete absence of teeth.
365:. This quarry belongs to the '
1:
2369:Fossil taxa described in 2017
251:Pritchard & Nesbitt, 2017
495:, although it differs from
339:and only known specimen of
127:s skull in multiple views.
2390:
2374:Prehistoric reptile genera
805:10.1093/zoolinnean/zlae050
788:"'Birds' of two feathers:
670:Royal Society Open Science
2259:
2130:
2119:
2090:
1361:
1346:
1333:
1313:
1030:
1015:
1002:
948:
921:
908:
865:
474:Drawings of the skull of
243:
236:
228:Pritchard & Nesbitt,
133:Scientific classification
131:
122:
113:
23:
16:Extinct genus of reptiles
353:(or Whitaker) quarry at
123:A 3D reconstruction of
747:10.1098/rspb.2005.3426
433:
327:
282:. The type species of
2331:Paleobiology Database
532:, but unlike that of
431:
325:
315:known for studies of
29:Temporal range: Late
624:convergently evolved
246:Avicranium renestoi
2294:Avicranium renestoi
2135:Possible sauropsids
790:Avicranium renestoi
741:(1590): 1045โ1048.
690:10.1098/rsos.170499
682:2017RSOS....470499P
503:, postfrontal, and
289:Avicranium renestoi
2208:Procolophonomorpha
1864:Ichthyosauromorpha
1853:Ichthyosauromorpha
1665:Drepanosauromorpha
1592:Acerosodontosaurus
434:
328:
196:Drepanosauromorpha
2346:
2345:
2286:Taxon identifiers
2277:
2276:
2255:
2254:
2251:
2250:
2198:Lanthanosuchoidea
2152:Protorothyrididae
2115:
2114:
2088:
2087:
2084:
2083:
2080:
2079:
2076:
2075:
1974:rhynchocephalians
1958:Lepidosauromorpha
1947:Lepidosauromorpha
1329:
1328:
1311:
1310:
1307:
1306:
998:
997:
994:
993:
990:
989:
986:
985:
557:tympanic membrane
538:occipital condyle
438:anteroposteriorly
391:Effigia okeeffeae
256:
255:
232:
2381:
2339:
2338:
2326:
2325:
2313:
2312:
2311:
2281:
2267:
2266:
2132:
2121:
2110:
2109:
2102:
2096:
2010:Archosauromorpha
1999:Archosauromorpha
1995:
1943:
1903:
1877:
1851:
1825:
1765:
1663:
1621:Weigeltisauridae
1619:
1581:
1544:
1529:
1519:
1509:
1499:
1489:
1479:
1469:
1459:
1449:
1439:
1429:
1418:
1408:
1398:
1391:Cryptovaranoides
1388:
1378:
1367:
1359:
1348:
1335:
1324:
1319:
1264:
1206:
1169:
1132:
1073:Acleistorhinidae
1071:
1056:
1046:
1036:
1028:
1017:
1004:
946:
919:
910:
903:
902:
867:
860:
851:
840:
833:
826:
817:
810:
809:
807:
783:
777:
776:
766:
726:
720:
719:
709:
661:
620:depth perception
468:
457:
367:siltstone member
276:Chinle Formation
227:
220:
207:
194:
141:
140:
118:
108:
45:
21:
2389:
2388:
2384:
2383:
2382:
2380:
2379:
2378:
2349:
2348:
2347:
2342:
2334:
2329:
2321:
2316:
2307:
2306:
2301:
2288:
2278:
2273:
2247:
2166:
2126:
2111:
2104:
2072:
2036:
1984:
1930:
1922:
1896:
1870:
1844:
1818:
1767:Kuehneosauridae
1758:
1724:Megalancosaurus
1656:
1630:Coelurosauravus
1612:
1574:
1537:
1411:Elachistosuchus
1355:
1342:
1325:
1303:
1283:
1257:
1199:
1162:
1125:
1064:
1024:
1011:
982:
962:
935:
929:Tetrapodomorpha
914:Tetrapodomorpha
904:
872:
871:
861:
855:
849:
844:
814:
813:
785:
784:
780:
728:
727:
723:
663:
662:
645:
640:
612:
578:Megalancosaurus
544:is very large.
497:Megalancosaurus
492:Megalancosaurus
486:
485:
484:
483:
482:(2024), bottom.
471:
470:
469:
460:
459:
458:
426:
333:
274:known from the
252:
249:
226:
218:
209:Drepanosauridae
205:
192:
135:
109:
107:
106:
101:
96:
91:
86:
81:
76:
71:
66:
61:
56:
51:
40:
39:
37:
27:
17:
12:
11:
5:
2387:
2385:
2377:
2376:
2371:
2366:
2361:
2351:
2350:
2344:
2343:
2341:
2340:
2327:
2314:
2298:
2296:
2290:
2289:
2284:
2275:
2274:
2272:
2271:
2260:
2257:
2256:
2253:
2252:
2249:
2248:
2246:
2245:
2240:
2235:
2230:
2228:Younginiformes
2225:
2220:
2215:
2210:
2205:
2200:
2195:
2190:
2185:
2180:
2174:
2172:
2168:
2167:
2165:
2164:
2159:
2154:
2149:
2144:
2138:
2136:
2128:
2127:
2124:
2117:
2116:
2113:
2112:
2091:
2089:
2086:
2085:
2082:
2081:
2078:
2077:
2074:
2073:
2071:
2070:
2069:
2068:
2057:
2056:
2055:
2046:
2044:
2038:
2037:
2035:
2034:
2033:
2032:
2014:
2013:
2012:
2003:
2001:
1992:
1986:
1985:
1983:
1982:
1981:
1980:
1962:
1961:
1960:
1951:
1949:
1940:
1924:
1923:
1921:
1920:
1919:
1918:
1916:Thalattosauria
1909:
1907:
1905:Thalattosauria
1898:
1897:
1895:
1894:
1893:
1892:
1883:
1881:
1872:
1871:
1869:
1868:
1867:
1866:
1857:
1855:
1846:
1845:
1843:
1842:
1841:
1840:
1831:
1829:
1820:
1819:
1817:
1816:
1808:
1801:
1794:
1787:
1779:
1771:
1769:
1760:
1759:
1757:
1756:
1749:
1742:
1735:
1727:
1720:
1712:
1705:
1698:
1691:
1684:
1677:
1674:Ancistronychus
1669:
1667:
1658:
1657:
1655:
1654:
1651:Weigeltisaurus
1647:
1640:
1633:
1625:
1623:
1614:
1613:
1611:
1610:
1603:
1596:
1587:
1585:
1576:
1575:
1573:
1572:
1565:
1558:
1550:
1548:
1539:
1538:
1536:
1535:
1525:
1515:
1505:
1495:
1485:
1475:
1465:
1455:
1445:
1435:
1425:
1414:
1404:
1394:
1384:
1374:
1362:
1356:
1351:
1344:
1343:
1338:
1331:
1330:
1327:
1326:
1314:
1312:
1309:
1308:
1305:
1304:
1302:
1301:
1300:
1299:
1293:
1291:
1285:
1284:
1282:
1281:
1280:
1279:
1270:
1268:
1259:
1258:
1256:
1255:
1252:Nanomilleretta
1248:
1241:
1234:
1227:
1220:
1212:
1210:
1201:
1200:
1198:
1197:
1190:
1183:
1175:
1173:
1164:
1163:
1161:
1160:
1153:
1146:
1138:
1136:
1127:
1126:
1124:
1123:
1116:
1108:
1100:
1092:
1085:
1082:Acleistorhinus
1077:
1075:
1066:
1065:
1063:
1062:
1052:
1042:
1039:Australothyris
1031:
1025:
1020:
1013:
1012:
1007:
1000:
999:
996:
995:
992:
991:
988:
987:
984:
983:
981:
980:
979:
978:
972:
970:
964:
963:
961:
960:
959:
958:
956:Reptiliomorpha
949:
943:
941:Reptiliomorpha
937:
936:
934:
933:
932:
931:
922:
916:
906:
905:
901:
900:
891:
885:
879:
870:
863:
862:
845:
843:
842:
835:
828:
820:
812:
811:
778:
721:
676:(10): 170499.
642:
641:
639:
636:
626:with those of
611:
608:
598:
597:
594:
591:
473:
472:
463:
462:
461:
452:
451:
450:
449:
448:
425:
422:
332:
329:
313:paleontologist
254:
253:
250:
241:
240:
234:
233:
216:
212:
211:
203:
199:
198:
190:
183:
182:
177:
173:
172:
167:
163:
162:
157:
153:
152:
147:
143:
142:
129:
128:
120:
119:
111:
110:
102:
97:
92:
87:
82:
77:
72:
67:
62:
57:
52:
47:
46:
28:
15:
13:
10:
9:
6:
4:
3:
2:
2386:
2375:
2372:
2370:
2367:
2365:
2362:
2360:
2357:
2356:
2354:
2337:
2332:
2328:
2324:
2319:
2315:
2310:
2304:
2300:
2299:
2297:
2295:
2291:
2287:
2282:
2270:
2262:
2261:
2258:
2244:
2241:
2239:
2236:
2234:
2231:
2229:
2226:
2224:
2221:
2219:
2216:
2214:
2211:
2209:
2206:
2204:
2203:Millerosauria
2201:
2199:
2196:
2194:
2191:
2189:
2186:
2184:
2181:
2179:
2176:
2175:
2173:
2169:
2163:
2160:
2158:
2157:Recumbirostra
2155:
2153:
2150:
2148:
2147:Captorhinidae
2145:
2143:
2142:Araeoscelidia
2140:
2139:
2137:
2133:
2129:
2122:
2118:
2108:
2103:
2101:
2095:
2066:
2065:
2064:
2063:
2058:
2054:
2053:Pantestudines
2050:
2049:
2048:
2047:
2045:
2043:
2042:Pantestudines
2039:
2031:
2027:
2023:
2022:
2021:
2020:
2015:
2011:
2007:
2006:
2005:
2004:
2002:
2000:
1996:
1993:
1991:
1990:Archelosauria
1987:
1979:
1975:
1971:
1970:
1969:
1968:
1963:
1959:
1955:
1954:
1953:
1952:
1950:
1948:
1944:
1941:
1938:
1934:
1929:
1925:
1917:
1913:
1912:
1911:
1910:
1908:
1906:
1899:
1891:
1890:Sauropterygia
1887:
1886:
1885:
1884:
1882:
1880:
1879:Sauropterygia
1873:
1865:
1861:
1860:
1859:
1858:
1856:
1854:
1847:
1839:
1835:
1834:
1833:
1832:
1830:
1828:
1821:
1814:
1813:
1809:
1807:
1806:
1802:
1800:
1799:
1798:Kuehneosuchus
1795:
1793:
1792:
1791:Kuehneosaurus
1788:
1785:
1784:
1780:
1778:
1777:
1773:
1772:
1770:
1768:
1761:
1755:
1754:
1750:
1748:
1747:
1743:
1741:
1740:
1736:
1733:
1732:
1728:
1726:
1725:
1721:
1718:
1717:
1713:
1711:
1710:
1706:
1704:
1703:
1699:
1697:
1696:
1695:Drepanosaurus
1692:
1690:
1689:
1688:Dolabrosaurus
1685:
1683:
1682:
1678:
1676:
1675:
1671:
1670:
1668:
1666:
1659:
1653:
1652:
1648:
1646:
1645:
1641:
1639:
1638:
1634:
1632:
1631:
1627:
1626:
1624:
1622:
1615:
1609:
1608:
1604:
1602:
1601:
1597:
1594:
1593:
1589:
1588:
1586:
1584:
1583:Tangasauridae
1577:
1571:
1570:
1566:
1564:
1563:
1559:
1557:
1556:
1552:
1551:
1549:
1547:
1540:
1534:
1533:
1532:Sphodrosaurus
1526:
1524:
1523:
1516:
1514:
1513:
1506:
1504:
1503:
1496:
1494:
1493:
1486:
1484:
1483:
1482:Maiothisavros
1476:
1474:
1473:
1472:Lanthanolania
1466:
1464:
1463:
1456:
1454:
1453:
1446:
1444:
1443:
1436:
1434:
1433:
1426:
1423:
1422:
1415:
1413:
1412:
1405:
1403:
1402:
1395:
1393:
1392:
1385:
1383:
1382:
1381:Claudiosaurus
1375:
1372:
1371:
1364:
1363:
1360:
1357:
1354:
1349:
1345:
1341:
1336:
1332:
1323:
1318:
1297:
1296:
1295:
1294:
1292:
1290:
1286:
1278:
1277:Procolophonia
1274:
1273:
1272:
1271:
1269:
1267:
1266:Procolophonia
1260:
1254:
1253:
1249:
1247:
1246:
1242:
1240:
1239:
1238:Millerosaurus
1235:
1233:
1232:
1228:
1226:
1225:
1221:
1219:
1218:
1214:
1213:
1211:
1209:
1208:Millerettidae
1202:
1196:
1195:
1194:Stereosternum
1191:
1189:
1188:
1184:
1182:
1181:
1180:Brazilosaurus
1177:
1176:
1174:
1172:
1165:
1159:
1158:
1154:
1152:
1151:
1147:
1145:
1144:
1140:
1139:
1137:
1135:
1128:
1122:
1121:
1117:
1114:
1113:
1109:
1106:
1105:
1101:
1098:
1097:
1093:
1091:
1090:
1086:
1084:
1083:
1079:
1078:
1076:
1074:
1067:
1061:
1060:
1053:
1051:
1050:
1043:
1041:
1040:
1033:
1032:
1029:
1026:
1023:
1018:
1014:
1010:
1005:
1001:
976:
975:
974:
973:
971:
969:
965:
957:
953:
952:
951:
950:
947:
944:
942:
938:
930:
926:
925:
924:
923:
920:
917:
915:
911:
907:
899:
895:
892:
890:
886:
884:
880:
878:
874:
873:
868:
864:
858:
854:
848:
841:
836:
834:
829:
827:
822:
821:
818:
806:
801:
797:
793:
791:
782:
779:
774:
770:
765:
760:
756:
752:
748:
744:
740:
736:
732:
725:
722:
717:
713:
708:
703:
699:
695:
691:
687:
683:
679:
675:
671:
667:
660:
658:
656:
654:
652:
650:
648:
644:
637:
635:
633:
629:
625:
621:
617:
609:
607:
604:
595:
592:
589:
588:
587:
585:
584:
579:
575:
574:
568:
566:
562:
558:
554:
550:
545:
543:
542:foramen ovale
539:
535:
531:
530:
525:
521:
517:
512:
510:
506:
502:
498:
494:
493:
481:
477:
467:
456:
447:
445:
444:
443:Drepanosaurus
439:
430:
423:
421:
419:
415:
411:
407:
402:
400:
399:pseudosuchian
397:
393:
392:
387:
384:
380:
376:
372:
368:
364:
360:
356:
352:
351:
346:
342:
338:
330:
324:
320:
319:drepanosaurs.
318:
314:
310:
306:
303:
299:
295:
291:
290:
285:
281:
280:late Triassic
277:
273:
270:
266:
262:
261:
248:
247:
242:
239:
235:
231:
225:
224:
217:
214:
213:
210:
204:
201:
200:
197:
191:
188:
185:
184:
181:
178:
175:
174:
171:
168:
165:
164:
161:
158:
155:
154:
151:
148:
145:
144:
139:
134:
130:
126:
121:
117:
112:
105:
100:
95:
90:
85:
80:
75:
70:
65:
60:
55:
50:
44:
41:213โ203
36:
32:
26:
22:
19:
2359:Drepanosaurs
2293:
2238:Eolacertilia
2213:Ankyramorpha
2193:Parareptilia
2183:Captorhinida
2097:
2060:
2030:crocodilians
2017:
1967:Lepidosauria
1965:
1838:Choristodera
1827:Choristodera
1810:
1803:
1796:
1789:
1781:
1774:
1751:
1744:
1737:
1729:
1722:
1714:
1709:Kyrgyzsaurus
1707:
1702:Hypuronector
1700:
1693:
1686:
1680:
1679:
1672:
1649:
1642:
1635:
1628:
1605:
1598:
1590:
1567:
1562:Thadeosaurus
1560:
1553:
1530:
1522:Saurosternon
1520:
1510:
1500:
1490:
1480:
1470:
1460:
1450:
1440:
1432:Feralisaurus
1430:
1421:Eunotosaurus
1419:
1409:
1401:Dolerosaurus
1399:
1389:
1379:
1368:
1250:
1243:
1236:
1229:
1222:
1215:
1192:
1185:
1178:
1155:
1148:
1141:
1134:Bolosauridae
1118:
1110:
1104:Delorhynchus
1102:
1096:Colobomycter
1094:
1089:Carbonodraco
1087:
1080:
1057:
1047:
1037:
893:
887:Superclass:
856:
795:
789:
781:
738:
734:
724:
673:
669:
613:
610:Paleobiology
602:
599:
581:
577:
573:Hypuronector
571:
569:
552:
546:
527:
524:captorhinids
513:
496:
490:
487:
479:
475:
441:
435:
417:
403:
389:
385:
348:
340:
334:
308:
293:
288:
287:
283:
259:
258:
257:
245:
244:
238:Type species
222:
221:
186:
124:
24:
18:
2218:Neodiapsida
2162:Varanopidae
2019:Archosauria
1812:Rhabdopelix
1776:Icarosaurus
1753:Vallesaurus
1746:Unguinychus
1716:Longisquama
1607:Tangasaurus
1555:Galesphyrus
1546:Younginidae
1452:Kenyasaurus
1442:Heleosuchus
1370:Adelosaurus
1245:Milleropsis
1224:Heleophilus
1112:Feeserpeton
798:. zlae050.
583:Vallesaurus
534:neodiapsids
529:Araeoscelis
505:postorbital
424:Description
396:shuvosaurid
386:Coelophysis
355:Ghost Ranch
350:Coelophysis
269:drepanosaur
267:of extinct
125:Avicranium'
2353:Categories
2243:Euryapsida
2233:Avicephala
2188:Eureptilia
2171:Other taxa
2062:Testudines
1739:Skybalonyx
1681:Avicranium
1600:Hovasaurus
1512:Palaeagama
1502:Palacrodon
1492:Orovenator
1298:see belowโ
1231:Milleretta
1187:Mesosaurus
1171:Mesosauria
1150:Bolosaurus
1059:Microleter
1022:Sauropsida
1009:Sauropsida
977:see belowโ
968:Sauropsida
857:sensu lato
847:Sauropsida
638:References
628:pterosaurs
603:Avicranium
553:Avicranium
476:Avicranium
418:Avicranium
394:, a large
359:New Mexico
341:Avicranium
294:Avicranium
284:Avicranium
260:Avicranium
223:Avicranium
25:Avicranium
2309:Q47454090
2059:Includes
2024:includes
2016:Includes
1978:squamates
1972:includes
1964:Includes
1783:Idiosaura
1731:Protoavis
1644:Rautiania
1157:Eudibamus
1049:Erpetonyx
889:Tetrapoda
875:Kingdom:
755:0962-8452
698:2054-5703
563:(such as
516:squamosal
373:to early
345:vertebrae
331:Discovery
156:Kingdom:
150:Eukaryota
2323:11131178
2303:Wikidata
2269:Category
2223:Eosuchia
2178:Anapsida
2125:See also
1937:Reptilia
1805:Pamelina
1637:Glaurung
1569:Youngina
1353:Diapsida
1340:Diapsida
1289:Diapsida
883:Chordata
881:Phylum:
877:Animalia
853:Reptilia
773:16600879
716:29134065
616:arboreal
565:saurians
561:diapsids
520:quadrate
509:parietal
410:endocast
406:micro-CT
383:dinosaur
375:Rhaetian
337:holotype
309:renestoi
202:Family:
180:Reptilia
170:Chordata
166:Phylum:
160:Animalia
146:Domain:
35:Rhaetian
2067:turtles
1217:Broomia
1143:Belebey
1120:Karutia
898:Amniota
764:1560254
707:5666248
678:Bibcode
501:frontal
412:of the
317:Italian
305:cranium
278:of the
272:reptile
215:Genus:
176:Class:
2336:371883
1928:Sauria
771:
761:
753:
714:
704:
696:
632:flight
580:, and
549:stapes
480:et al.
371:Norian
31:Norian
2026:birds
1933:Crown
1462:Kudnu
894:Clade
414:brain
300:for "
298:Latin
296:" is
265:genus
263:is a
187:Clade
2318:GBIF
2051:see
2028:and
2008:see
1976:and
1956:see
1914:see
1888:see
1862:see
1836:see
1275:see
954:see
927:see
769:PMID
751:ISSN
712:PMID
694:ISSN
547:The
526:and
335:The
302:bird
230:2017
49:Pre๊
800:doi
759:PMC
743:doi
739:273
702:PMC
686:doi
363:USA
357:in
292:. "
286:is
2355::
2333::
2320::
2305::
896::
794:.
767:.
757:.
749:.
737:.
733:.
710:.
700:.
692:.
684:.
672:.
668:.
646:^
576:,
446:.
361:,
189::
99:Pg
43:Ma
1939:)
1935:-
1931:(
1902:โ
1876:โ
1850:โ
1824:โ
1815:?
1786:?
1764:โ
1734:?
1719:?
1662:โ
1618:โ
1595:?
1580:โ
1543:โ
1528:โ
1518:โ
1508:โ
1498:โ
1488:โ
1478:โ
1468:โ
1458:โ
1448:โ
1438:โ
1428:โ
1424:?
1417:โ
1407:โ
1397:โ
1387:โ
1377:โ
1373:?
1366:โ
1263:โ
1205:โ
1168:โ
1131:โ
1115:?
1107:?
1099:?
1070:โ
1055:โ
1045:โ
1035:โ
859:)
850:(
839:e
832:t
825:v
808:.
802::
775:.
745::
718:.
688::
680::
674:4
219:โ
206:โ
193:โ
104:N
94:K
89:J
84:T
79:P
74:C
69:D
64:S
59:O
54:๊
38:~
33:โ
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