2266:
820:
928:
507:
1117:
986:
1095:
1044:
957:
591:
540:
1073:
436:
104:
899:
142:
552:
495:
867:
847:
1015:
121:
720:
565:
was a small radiodont, with whole body specimen measured around 10–83 mm (0.39–3.27 in) long, excluding the tail. Even based on the largest isolated frontal appendage, the upper body length was thought to be less than 20 cm (7.9 in) long. Unlike most
673:-like curved blades (endites) protruding from the ventral surface of podomere 3–7, while podomere 2 and 9 have short endites. The upper surface bore a row of inner-facing, mostly forked robust spines (gnathites) which are unique to this genus. Similar to
470:
sp. by Pates, Daley & Ortega-Hernández (2017). They reported segmental boundaries between the structures previously thought to be 'lobopods' and curved terminal spines that resemble the frontal appendages of radiodonts, and thus they considered
519:
522:
526:
525:
521:
520:
527:
1243:"Exceptionally preserved radiodont arthropods from the lower Cambrian (Stage 3) Qingjiang Lagerstätte of Hubei, South China and the biogeographic and diversification patterns of radiodonts"
742:
body shape and broad trunk flaps, it may have been able to chase relatively fast-moving prey. With strong differentiation of lateral–medial, inner–outer, and proximal–distal morphologies,
413:
had three eyes, a bizarre configuration previously unknown among other radiodont genera; yet this head anatomy supports early differentiation among arthropod head and trunk segmentation.
524:
2265:
1461:
432:, as the Code did not accept taxa named in electronic publications as validly named until 2012; the name was eventually validated by Pates, Daley & Ortega-Hernández (2018).
669:, which are the most commonly found component of this taxon, range in length between 3.5–32.2 mm (0.14–1.27 in). It comprises 14 segments (podomeres) with 5 long,
506:
653:, and circumesophageal connective that surround digestive system between them. Unlike other radiodonts, the paired lateral sclerites (P-element) are not evident in any
711:
lamellae) were suggested to be positioned ventrally on each of the trunk segment, contrary to the general reconstruction of radiodont with dorsal setal blades.
429:
523:
784:-like traits (e.g. streamlined body; small head sclerites; frontal appendages with curved dorsal spines) found in these hurdiids represent radiodont
2317:
819:
1872:
739:
614:
lateral eyes, a third, large median eye was located behind its preocular sclerite (H-element). Similar structures were evident in the fossils of
2368:
1409:
707:
The trunk region have 17 segments with paired lateroventral flaps, as well as 4 caudal filiform blades on the tail. The setal blades (band of
1241:
Wu, Yu; Pates, Stephen; Zhang, Mingjing; Lin, Weiliang; Ma, Jiaxin; Liu, Cong; Wu, Yuheng; Zhang, Xingliang; Fu, Dongjing (21 August 2024).
1913:
927:
626:, suggesting these genera possibly had a median eye too. Contrary to the agreement around mid and late 2010s (based on the discovery of
1116:
1094:
985:
631:
1218:
1043:
746:
was probably able to manipulate prey with distal raptorial portion, trap and masticate prey items using endites and gnathites.
539:
2363:
494:
393:
was originally described only from frontal appendages and oral cone. Its generic name means "Crab of
Stanley Glacier";
141:
551:
956:
699:
genera. Each of the 4 large plate have 2 additional nodes, and the mouth opening has no additional inner plates.
590:
1906:
1355:"A three-eyed radiodont with fossilized neuroanatomy informs the origin of the arthropod head and segmentation"
650:
2190:
922:
771:
1884:
1764:"A new hurdiid radiodont from the Burgess Shale evinces the exploitation of Cambrian infaunal food sources"
2285:
1813:"A giant nektobenthic radiodont from the Burgess Shale and the significance of hurdiid carapace diversity"
594:
Interpretation of the brain and associated structures of radiodonts until 2014 (A), and after anatomy of
2330:
1455:
1287:"A new Burgess Shale-type assemblage from the "thin" Stephen Formation of the southern Canadian Rockies"
1824:
1709:
1646:
1503:
1366:
1298:
1254:
425:
2358:
2246:
1899:
416:
The original description of the taxon appeared in an online supplement to the article published by
1072:
1741:
1678:
1633:
Cong, Peiyun; Ma, Xiaoya; Hou, Xianguang; Edgecombe, Gregory D.; Strausfeld, Nicholas J. (2014).
1529:
1400:
417:
136:
2335:
791:
The following cladogram by
Moysiuk & Caron (2022) demonstrates the phylogenetic position of
435:
898:
103:
1850:
1793:
1733:
1725:
1670:
1662:
1598:
from the Utah
Wheeler Formation (Drumian, Cambrian) is a frontal appendage of the radiodontan
1553:
from the Utah
Wheeler Formation (Drumian, Cambrian) is a frontal appendage of the radiodontan
1521:
1430:
from the Utah
Wheeler Formation (Drumian, Cambrian) is a frontal appendage of the radiodontan
1392:
1384:
785:
341:
1242:
2230:
2108:
2067:
2025:
1840:
1832:
1783:
1775:
1717:
1654:
1613:
1572:
1511:
1443:
1374:
1306:
1262:
862:
842:
815:
777:
579:
575:
421:
866:
2014:
642:
371:
345:
1828:
1713:
1698:"Anomalocaridid trunk limb homology revealed by a giant filter-feeder with paired flaps"
1650:
1507:
1370:
1302:
1258:
2000:
1845:
1812:
1788:
1763:
1286:
781:
846:
2352:
2211:
2083:
2076:
1984:
1946:
1745:
1533:
1492:"Exceptional multifunctionality in the feeding apparatus of a mid-Cambrian radiodont"
1404:
452:
444:
361:
357:
349:
61:
2239:
2218:
2162:
2155:
2124:
2117:
2034:
1992:
1682:
1111:
1067:
980:
603:
327:
238:
186:
120:
738:
that specialized primarily on macroscopic, soft-bodied benthic prey. Based on its
401:-like nature of its spiny frontal appendages. However, in 2022, 268 specimens of
2204:
2148:
2097:
2049:
2007:
1089:
670:
398:
375:
36:
2308:
1285:
Caron, J. -B.; Gaines, R. R.; Mangano, M. G.; Streng, M.; Daley, A. C. (2010).
1970:
1955:
1952:
1922:
1697:
1635:"Brain structure resolves the segmental affinity of anomalocaridid appendages"
1634:
1379:
1354:
1014:
802:
692:
666:
607:
379:
309:
199:
81:
46:
1729:
1666:
1525:
1388:
2176:
2135:
2090:
1940:
1038:
879:
761:
758:
622:
567:
456:
319:
212:
173:
153:
86:
1854:
1797:
1779:
1737:
1674:
1618:
1593:
1577:
1548:
1447:
1396:
719:
2302:
2056:
2041:
735:
638:
611:
602:
The small head occupies about 15% of the total body length. Each lateral
461:
323:
76:
71:
56:
51:
41:
1836:
1721:
1658:
1516:
1491:
2322:
2183:
951:
766:
696:
675:
616:
316:
261:
91:
66:
1266:
2169:
1934:
1310:
1009:
353:
163:
2279:
1434:" by Stephen Pates, Allison C. Daley, and Javier Ortega-Hernández".
695:, which comprises 28 tooth plates instead of 32 like those of other
776:
which shares some anatomical similarities. This suggests that the
718:
688:
679:, the distal podomeres have claw-like dorsal and terminal spines.
657:
specimens, suggesting they were exclusively absent in this genus.
635:
589:
434:
312:
1592:
Stephen Pates; Allison C. Daley; Javier Ortega-Hernández (2017).
1547:
Stephen Pates; Allison C. Daley; Javier Ortega-Hernández (2018).
1426:
José A. Gámez
Vintaned; Andrey Y. Zhuravlev (2018). "Comment on "
708:
455:), which was described by Robison (1985) as a whole body of new
448:
2283:
1895:
1696:
Van Roy, Peter; Daley, Allison C.; Briggs, Derek E. G. (2015).
428:. That description did not satisfy of the requirements of the
424:, M. Gabriela Mángano, Michael Streng and Allison C. Daley in
1891:
466:, was reinterpreted as an isolated frontal appendage of
1768:
Proceedings of the Royal
Society B: Biological Sciences
405:, many of which were complete, were studied, making
284:
270:
245:
2292:
2229:
2134:
2107:
2066:
2024:
1968:
1353:Moysiuk, Joseph; Caron, Jean-Bernard (2022-07-08).
570:with large head and broad neck region, the body of
1460:: CS1 maint: DOI inactive as of September 2024 (
1883:. Virtual Museum of Canada. 2011. Archived from
649:suggests radiodonts have both protocerebrum and
1907:
1490:Moysiuk, Joseph; Caron, Jean-Bernard (2021).
430:International Code of Zoological Nomenclature
374:of China. The genus was characterized by the
8:
443:The specimen KUMIP 153923 from the Cambrian
1280:
1278:
1276:
2280:
2140:
1976:
1965:
1914:
1900:
1892:
119:
102:
20:
1844:
1787:
1617:
1576:
1515:
1378:
280:Pates, Daley & Ortega-Hernández, 2018
255:Pates, Daley & Ortega-Hernández, 2018
232:Pates, Daley & Ortega-Hernández, 2018
16:Extinct genus of basal hurdiid radiodonts
1762:Moysiuk, J.; Caron, J.-B. (2019-08-14).
1236:
1234:
757:was analysed to be one of the basalmost
630:since 2014) suggest radiodonts had only
1230:
533:3D reconstruction of frontal appendages
490:
1453:
483:on the basis of their interpretation.
1757:
1755:
1348:
1346:
1344:
1342:
1340:
7:
1485:
1483:
1481:
1479:
1477:
1475:
1473:
1471:
1421:
1419:
1417:
1338:
1336:
1334:
1332:
1330:
1328:
1326:
1324:
1322:
1320:
1059:
1030:
1001:
972:
943:
914:
885:
835:
808:
798:
1811:Caron, J.-B.; Moysiuk, J. (2021).
606:was estimated to have around 1000
14:
1557:" with the formal description of
2264:
1115:
1093:
1071:
1042:
1013:
984:
955:
926:
897:
865:
845:
818:
691:was surrounded by a tetraradial
550:
538:
517:
505:
493:
397:, L. "large rake", reflects the
140:
1219:Paleobiota of the Burgess Shale
574:was streamlined like those of
326:(Stage 3 to Miaolingian). The
1:
2369:Fossil taxa described in 2018
1606:Acta Palaeontologica Polonica
1565:Acta Palaeontologica Polonica
1436:Acta Palaeontologica Polonica
409:a well documented radiodont.
1881:Burgess Shale Fossil Gallery
512:Diagram of frontal appendage
32:Cambrian Stage 3–Miaolingian
610:. In addition of a pair of
500:Diagrammatic reconstruction
2385:
1817:Royal Society Open Science
382:with robust inner spines.
2262:
2143:
1979:
1964:
1929:
1380:10.1016/j.cub.2022.06.027
1108:
1086:
1064:
1057:
1035:
1028:
1006:
999:
977:
970:
948:
941:
919:
912:
890:
883:
860:
840:
833:
813:
806:
734:was most likely a visual
267:
260:
244:
237:
137:Scientific classification
135:
127:
118:
110:
101:
23:
479:and synonymised it with
1247:Papers in Palaeontology
723:Life reconstruction of
340:was described from the
1780:10.1098/rspb.2019.1079
1619:10.4202/app.00361.2017
1578:10.4202/app.00443.2017
1549:"Reply to Comment on "
1450:(inactive 2024-09-18).
1448:10.4202/app.00335.2017
728:
599:
440:
2364:Burgess Shale fossils
2331:Paleobiology Database
722:
593:
438:
128:Complete specimen of
1365:(15): 3302–3316.e2.
786:ancestral characters
386:History of discovery
364:. A second species,
2247:Pseudoangustidontus
1875:Stanleycaris hirpex
1837:10.1098/rsos.210664
1829:2021RSOS....810664C
1722:10.1038/nature14256
1714:2015Natur.522...77V
1659:10.1038/nature13486
1651:2014Natur.513..538C
1517:10.1017/pab.2021.19
1508:2021Pbio...47..704M
1371:2022CBio...32E3302M
1303:2010Geo....38..811C
1259:2024PPal...10E1583W
333:Stanleycaris hirpex
250:Stanleycaris hirpex
1774:(1908): 20191079.
729:
667:frontal appendages
600:
441:
418:Jean-Bernard Caron
380:frontal appendages
370:is known from the
111:Reconstruction of
2346:
2345:
2286:Taxon identifiers
2277:
2276:
2273:
2272:
2260:
2259:
2256:
2255:
1645:(7519): 538–542.
1410:Supplemental Text
1267:10.1002/spp2.1583
1209:
1208:
1200:
1199:
1191:
1190:
1182:
1181:
1173:
1172:
1164:
1163:
1155:
1154:
1146:
1145:
1137:
1136:
1128:
1127:
661:Frontal appendage
528:
445:Wheeler Formation
367:S. qingjiangensis
358:Wheeler Formation
342:Stephen Formation
301:
300:
295:
289:S. qingjiangensis
281:
233:
2376:
2339:
2338:
2326:
2325:
2313:
2312:
2311:
2281:
2268:
2231:Aegirocassisinae
2141:
2109:Tamisiocarididae
2068:Amplectobeluidae
2026:Anomalocarididae
1977:
1966:
1916:
1909:
1902:
1893:
1888:
1859:
1858:
1848:
1808:
1802:
1801:
1791:
1759:
1750:
1749:
1693:
1687:
1686:
1630:
1624:
1623:
1621:
1596:Aysheaia prolata
1589:
1583:
1582:
1580:
1551:Aysheaia prolata
1544:
1538:
1537:
1519:
1487:
1466:
1465:
1459:
1451:
1428:Aysheaia prolata
1423:
1412:
1408:
1382:
1350:
1315:
1314:
1311:10.1130/G31080.1
1282:
1271:
1270:
1238:
1119:
1097:
1075:
1060:
1046:
1031:
1017:
1002:
988:
973:
959:
944:
930:
915:
901:
886:
869:
863:Amplectobeluidae
849:
843:Anomalocarididae
836:
822:
816:Tamisiocarididae
809:
799:
554:
542:
530:
529:
509:
497:
422:Robert R. Gaines
293:
286:
279:
272:
247:
231:
224:
211:
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185:
145:
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123:
106:
96:
33:
29:Temporal range:
21:
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2347:
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2306:
2301:
2288:
2278:
2269:
2252:
2225:
2130:
2103:
2062:
2020:
2015:Paranomalocaris
1973:
1960:
1925:
1920:
1871:
1868:
1863:
1862:
1810:
1809:
1805:
1761:
1760:
1753:
1708:(7554): 77–80.
1695:
1694:
1690:
1632:
1631:
1627:
1591:
1590:
1586:
1546:
1545:
1541:
1489:
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1452:
1425:
1424:
1415:
1359:Current Biology
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1351:
1318:
1284:
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1240:
1239:
1232:
1227:
1215:
1210:
1201:
1192:
1183:
1174:
1165:
1156:
1147:
1138:
1129:
752:
717:
705:
685:
663:
643:neuroanatomical
588:
580:amplectobeluids
576:anomalocaridids
558:
557:Size estimation
555:
546:
543:
534:
531:
518:
513:
510:
501:
498:
489:
388:
372:Qingjiang biota
346:Stanley Glacier
294:Wu et al., 2024
292:
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230:
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209:
196:
183:
139:
97:
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17:
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5:
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2250:
2243:
2235:
2233:
2227:
2226:
2224:
2223:
2215:
2208:
2201:
2194:
2191:Schinderhannes
2187:
2180:
2173:
2166:
2159:
2152:
2144:
2138:
2132:
2131:
2129:
2128:
2121:
2113:
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2102:
2101:
2094:
2087:
2080:
2072:
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2064:
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2060:
2053:
2046:
2038:
2030:
2028:
2022:
2021:
2019:
2018:
2011:
2004:
2001:Innovatiocaris
1997:
1989:
1980:
1974:
1969:
1962:
1961:
1959:
1958:
1949:
1943:
1937:
1930:
1927:
1926:
1921:
1919:
1918:
1911:
1904:
1896:
1890:
1889:
1887:on 2020-11-12.
1867:
1866:External links
1864:
1861:
1860:
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1612:(3): 619–625.
1584:
1571:(1): 105–110.
1539:
1502:(4): 704–724.
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923:Schinderhannes
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797:
782:amplectobeluid
778:anomalocaridid
773:Schinderhannes
751:
750:Classification
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2213:
2212:Ursulinacaris
2209:
2207:
2206:
2202:
2200:
2199:
2195:
2193:
2192:
2188:
2186:
2185:
2181:
2179:
2178:
2174:
2172:
2171:
2167:
2165:
2164:
2160:
2158:
2157:
2153:
2151:
2150:
2146:
2145:
2142:
2139:
2137:
2133:
2127:
2126:
2122:
2120:
2119:
2115:
2114:
2112:
2110:
2106:
2100:
2099:
2095:
2093:
2092:
2088:
2086:
2085:
2084:Guanshancaris
2081:
2079:
2078:
2077:Amplectobelua
2074:
2073:
2071:
2069:
2065:
2059:
2058:
2054:
2052:
2051:
2047:
2044:
2043:
2039:
2037:
2036:
2032:
2031:
2029:
2027:
2023:
2017:
2016:
2012:
2010:
2009:
2005:
2003:
2002:
1998:
1995:
1994:
1990:
1987:
1986:
1985:Caryosyntrips
1982:
1981:
1978:
1975:
1972:
1967:
1963:
1957:
1954:
1950:
1948:
1947:Panarthropoda
1944:
1942:
1939:Superphylum:
1938:
1936:
1932:
1931:
1928:
1924:
1917:
1912:
1910:
1905:
1903:
1898:
1897:
1894:
1886:
1882:
1878:
1876:
1870:
1869:
1865:
1856:
1852:
1847:
1842:
1838:
1834:
1830:
1826:
1823:(9): 210664.
1822:
1818:
1814:
1807:
1804:
1799:
1795:
1790:
1785:
1781:
1777:
1773:
1769:
1765:
1758:
1756:
1752:
1747:
1743:
1739:
1735:
1731:
1727:
1723:
1719:
1715:
1711:
1707:
1703:
1699:
1692:
1689:
1684:
1680:
1676:
1672:
1668:
1664:
1660:
1656:
1652:
1648:
1644:
1640:
1636:
1629:
1626:
1620:
1615:
1611:
1607:
1603:
1601:
1597:
1588:
1585:
1579:
1574:
1570:
1566:
1562:
1560:
1556:
1552:
1543:
1540:
1535:
1531:
1527:
1523:
1518:
1513:
1509:
1505:
1501:
1497:
1493:
1486:
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1474:
1472:
1468:
1463:
1457:
1449:
1445:
1441:
1437:
1433:
1429:
1422:
1420:
1418:
1414:
1411:
1406:
1402:
1398:
1394:
1390:
1386:
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1376:
1372:
1368:
1364:
1360:
1356:
1349:
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1339:
1337:
1335:
1333:
1331:
1329:
1327:
1325:
1323:
1321:
1317:
1312:
1308:
1304:
1300:
1296:
1292:
1288:
1281:
1279:
1277:
1273:
1268:
1264:
1260:
1256:
1252:
1248:
1244:
1237:
1235:
1231:
1224:
1220:
1217:
1216:
1212:
1205:
1204:
1196:
1195:
1187:
1186:
1178:
1177:
1169:
1168:
1160:
1159:
1151:
1150:
1142:
1141:
1133:
1132:
1124:
1123:
1120:
1118:
1114:
1113:
1106:
1105:
1102:
1101:
1098:
1096:
1092:
1091:
1084:
1083:
1080:
1079:
1076:
1074:
1070:
1069:
1062:
1061:
1055:
1054:
1051:
1050:
1047:
1045:
1041:
1040:
1033:
1032:
1026:
1025:
1022:
1021:
1018:
1016:
1012:
1011:
1004:
1003:
997:
996:
993:
992:
989:
987:
983:
982:
975:
974:
968:
967:
964:
963:
960:
958:
954:
953:
946:
945:
939:
938:
935:
934:
931:
929:
925:
924:
917:
916:
910:
909:
906:
905:
902:
900:
896:
895:
888:
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873:
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868:
864:
858:
857:
854:
853:
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848:
844:
838:
837:
831:
830:
827:
826:
823:
821:
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811:
810:
804:
801:
800:
796:
794:
789:
787:
783:
779:
775:
774:
769:
768:
763:
760:
756:
749:
747:
745:
741:
737:
733:
726:
721:
714:
712:
710:
702:
700:
698:
694:
690:
682:
680:
678:
677:
672:
668:
660:
658:
656:
652:
651:deutocerebrum
648:
644:
640:
637:
633:
632:protocerebrum
629:
625:
624:
619:
618:
613:
609:
605:
597:
592:
585:
583:
581:
577:
573:
569:
564:
553:
548:
541:
536:
515:
508:
503:
496:
491:
486:
484:
482:
478:
474:
469:
465:
463:
458:
454:
453:United States
450:
446:
437:
433:
431:
427:
423:
419:
414:
412:
408:
404:
400:
396:
392:
385:
383:
381:
377:
373:
369:
368:
363:
362:United States
359:
356:, as well as
355:
351:
350:Burgess Shale
347:
343:
339:
335:
334:
329:
325:
321:
318:
314:
311:
307:
306:
291:
290:
283:
277:
276:
269:
268:
266:
263:
259:
252:
251:
243:
240:
236:
229:
228:
221:
218:
217:
214:
208:
205:
204:
201:
195:
192:
191:
188:
182:
179:
178:
175:
172:
169:
168:
165:
162:
159:
158:
155:
152:
149:
148:
143:
138:
134:
131:
126:
122:
117:
114:
109:
105:
100:
93:
88:
83:
78:
73:
68:
63:
58:
53:
48:
43:
38:
26:
22:
19:
2294:Stanleycaris
2293:
2245:
2240:Aegirocassis
2238:
2219:Zhenghecaris
2217:
2210:
2203:
2198:Stanleycaris
2197:
2196:
2189:
2182:
2175:
2168:
2163:Cordaticaris
2161:
2156:Cambroraster
2154:
2147:
2125:Tamisiocaris
2123:
2118:Echidnacaris
2116:
2096:
2089:
2082:
2075:
2055:
2048:
2040:
2035:Anomalocaris
2033:
2013:
2006:
1999:
1993:Cucumericrus
1991:
1983:
1885:the original
1880:
1874:
1820:
1816:
1806:
1771:
1767:
1705:
1701:
1691:
1642:
1638:
1628:
1609:
1605:
1600:Stanleycaris
1599:
1595:
1587:
1568:
1564:
1559:Stanleycaris
1558:
1555:Stanleycaris
1554:
1550:
1542:
1499:
1496:Paleobiology
1495:
1456:cite journal
1439:
1435:
1432:Stanleycaris
1431:
1427:
1362:
1358:
1294:
1290:
1250:
1246:
1112:Cordaticaris
1110:
1109:
1088:
1087:
1068:Cambroraster
1066:
1065:
1037:
1036:
1008:
1007:
981:Aegirocassis
979:
978:
950:
949:
921:
920:
894:Stanleycaris
893:
892:
891:
861:
841:
814:
793:Stanleycaris
792:
790:
772:
765:
764:, alongside
755:Stanleycaris
754:
753:
744:Stanleycaris
743:
732:Stanleycaris
731:
730:
724:
715:Paleoecology
706:
703:Trunk region
686:
674:
664:
655:Stanleycaris
654:
647:Stanleycaris
646:
645:evidence of
627:
621:
615:
604:compound eye
601:
596:Stanleycaris
595:
572:Stanleycaris
571:
563:Stanleycaris
562:
561:
481:Stanleycaris
480:
477:nomen dubium
476:
472:
468:Stanleycaris
467:
460:
442:
439:KUMIP 153923
415:
411:Stanleycaris
410:
407:Stanleycaris
406:
403:Stanleycaris
402:
394:
391:Stanleycaris
390:
389:
366:
365:
352:locality of
338:Stanleycaris
337:
332:
331:
328:type species
305:Stanleycaris
304:
303:
302:
288:
287:
274:
273:
249:
248:
239:Type species
227:Stanleycaris
226:
225:
187:Dinocaridida
129:
112:
25:Stanleycaris
24:
18:
2205:Titanokorys
2149:Buccaspinea
2098:Ramskoeldia
2050:Lenisicaris
2008:Laminacaris
1090:Titanokorys
740:streamlined
727:on seafloor
487:Description
2359:Radiodonta
2353:Categories
1971:Radiodonta
1956:Arthropoda
1953:Stem-group
1923:Radiodonta
1297:(9): 811.
1225:References
803:Radiodonta
473:A. prolata
457:lobopodian
200:Radiodonta
174:Arthropoda
2177:Pahvantia
2136:Hurdiidae
2091:Lyrarapax
1941:Ecdysozoa
1933:Kingdom:
1746:205242881
1730:1476-4687
1667:1476-4687
1534:236552819
1526:0094-8373
1405:250361698
1389:0960-9822
1039:Pahvantia
880:Hurdiidae
762:radiodont
725:S. hirpex
693:oral cone
683:Oral cone
634:on their
628:Lyrarapax
623:Lyrarapax
608:ommatidia
545:Oral cone
344:near the
322:from the
320:radiodont
275:S. hirpex
213:Hurdiidae
160:Kingdom:
154:Eukaryota
130:S. hirpex
113:S. hirpex
2309:Q3968252
2303:Wikidata
2057:Shucaris
2042:Houcaris
1951:Phylum:
1935:Animalia
1855:34527273
1798:31362637
1738:25762145
1675:25043032
1397:35809569
1213:See also
736:predator
639:ganglion
636:cerebral
568:hurdiids
462:Aysheaia
459:species
324:Cambrian
206:Family:
170:Phylum:
164:Animalia
150:Domain:
2323:9526974
2184:Peytoia
1945:Clade:
1846:8424305
1825:Bibcode
1789:6710600
1710:Bibcode
1683:4451239
1647:Bibcode
1504:Bibcode
1367:Bibcode
1299:Bibcode
1291:Geology
1255:Bibcode
952:Peytoia
767:Peytoia
759:hurdiid
697:hurdiid
676:Peytoia
617:Peytoia
612:stalked
464:prolata
317:hurdiid
310:extinct
262:Species
219:Genus:
193:Order:
180:Class:
2336:465438
2170:Hurdia
1853:
1843:
1796:
1786:
1744:
1736:
1728:
1702:Nature
1681:
1673:
1665:
1639:Nature
1532:
1524:
1403:
1395:
1387:
1010:Hurdia
641:, The
395:hirpex
378:-like
354:Canada
308:is an
1742:S2CID
1679:S2CID
1530:S2CID
1401:S2CID
1253:(4).
689:mouth
475:as a
313:genus
2318:GBIF
1851:PMID
1794:PMID
1734:PMID
1726:ISSN
1671:PMID
1663:ISSN
1522:ISSN
1462:link
1393:PMID
1385:ISSN
770:and
709:gill
687:The
671:rake
665:The
620:and
586:Head
578:and
449:Utah
426:2010
399:rake
376:rake
348:and
37:Preęž’
1841:PMC
1833:doi
1784:PMC
1776:doi
1772:286
1718:doi
1706:522
1655:doi
1643:513
1614:doi
1573:doi
1512:doi
1444:doi
1375:doi
1307:doi
1263:doi
598:(B)
360:of
330:is
315:of
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451:,
420:,
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