592:
69:
47:
419:
Orthoceratidae was named by McCoy (1844) and assigned to the
Orthocerida by Teichert and Miller (1939),(as Orthocerotidae); to the Michelinoceratida by Flower (1962), and to the Orthocerataceae by Sweet (1964). It has been subsequently included in the Orthocerataceae in Evans (1994) and in the
420:
Orthocerida in Evans (2005) and in Kröger et al. (2007). Flower showed in 1962 that
Orthocerotidae used by Teichert and Miller (1939) is synonymous with Orthoceratide McCoy (1884).
517:
B. Kröger, M. S. Beresi, and E. Landing. 2007. Early orthoceratoid cephalopods from the
Argentine Precordillera (Lower-Middle Ordovician). Journal of Paleontology 81(6):1266-1283
1080:
549:
1152:
1067:
508:
D. H. Evans. 2005. The Lower and Middle
Ordovician cephalopod faunas of England and Wales. Monograph of the Palaeontographical Society 623:1-81
1157:
483:
444:, and cylindrical or only slightly inflated connecting rings. Ornamentation may be in the form of longitudinal or transverse ribs and/or
499:
R. H. Flower. 1962. Memoir 10, Part 2; Notes on the
Michelinoceratida. New Mexico Bureau of Mines and Mineral Resources, Socorro NM.
463:
1119:
542:
68:
1162:
591:
535:
597:
1012:
527:
1106:
685:
303:
1124:
295:
183:
1147:
319:
207:
255:
199:
854:
247:
167:
752:
734:
337:
279:
63:
1111:
223:
175:
311:
1093:
1054:
1098:
1085:
651:
358:
263:
893:
876:
799:
287:
271:
239:
141:
956:
860:
809:
804:
766:
445:
215:
1141:
664:
657:
373:
159:
1059:
987:
980:
974:
923:
907:
871:
814:
692:
678:
441:
327:
524:
Dzik, Jerzy (1984) Phylogeny of the
Nautiloidea, Palaeontologica Polonica, no. 43
903:
867:
759:
745:
727:
627:
433:
369:
362:
123:
1035:
967:
961:
930:
917:
913:
899:
837:
783:
739:
706:
633:
580:
559:
393:
365:
231:
191:
110:
55:
28:
994:
848:
826:
713:
620:
437:
429:
389:
80:
406:
46:
1046:
1029:
830:
607:
570:
397:
100:
36:
1072:
843:
671:
32:
385:
377:
90:
1006:
401:
381:
1010:
531:
590:
481:
Sweet, Walter C., (1964), Nautiloidea --Orthocerida, in
428:
Members are characterised by long, slender, usually
1019:
944:
782:
606:
569:
543:
8:
1007:
788:
612:
550:
536:
528:
45:
20:
823:First appearance of long-lasting lineages
436:, a central or subcentral orthochoanitic
432:(straight) but sometimes slightly curved
495:
493:
477:
475:
456:
448:, or the shell surface may be smooth.
484:Treatise on Invertebrate Paleontology
7:
487:. Part K. Mollusca 3. pp K224-K231.
14:
440:that is free of deposits, a long
796:Earliest unambiguous cephalopods
67:
1153:Prehistoric cephalopod families
892:the earliest cephalopod group
578:The belemnite-cuttlefish-like
372:, that lived in what would be
1:
951:Probable misidentified genera
922:Earliest coiled cephalopods:
404:, existing for approximately
1158:Ordovician first appearances
563:(listed by first occurrence)
1179:
836:Probable coleoid ancestor
16:Extinct family of molluscs
885:
791:
722:
702:
642:
615:
588:
343:
336:
154:
149:
64:Scientific classification
62:
53:
44:
23:
464:PaleoBiology Database:
595:
1107:Paleobiology Database
594:
1163:Permian extinctions
361:of actively mobile
596:
1135:
1134:
1094:Open Tree of Life
1013:Taxon identifiers
1004:
1003:
940:
939:
778:
777:
686:Paleocirroteuthis
352:
351:
304:Striatocycloceras
145:
1170:
1128:
1127:
1115:
1114:
1102:
1101:
1089:
1088:
1076:
1075:
1063:
1062:
1050:
1049:
1040:
1039:
1038:
1008:
789:
652:Muensterelloidea
613:
564:
552:
545:
538:
529:
518:
515:
509:
506:
500:
497:
488:
479:
470:
461:
410:
296:Pseudospyroceras
264:Plagiostomoceras
184:Infundibuloceras
140:
135:
122:
72:
71:
49:
27:Temporal range:
21:
1178:
1177:
1173:
1172:
1171:
1169:
1168:
1167:
1138:
1137:
1136:
1131:
1123:
1118:
1110:
1105:
1097:
1092:
1084:
1079:
1071:
1066:
1058:
1053:
1045:
1043:
1034:
1033:
1028:
1015:
1005:
1000:
936:
894:Ellesmerocerida
881:
877:Phragmoteuthids
800:Plectronocerida
774:
718:
698:
638:
602:
599:
586:
565:
562:
558:Notable fossil
556:
521:
516:
512:
507:
503:
498:
491:
480:
473:
462:
458:
454:
426:
417:
405:
400:from 490—203.7
320:Tibichoanoceras
288:Polygrammoceras
272:Pleurorthoceras
240:Orthocycloceras
139:
133:
120:
66:
40:
25:
17:
12:
11:
5:
1176:
1174:
1166:
1165:
1160:
1155:
1150:
1140:
1139:
1133:
1132:
1130:
1129:
1116:
1103:
1090:
1077:
1064:
1051:
1041:
1025:
1023:
1021:Orthoceratidae
1017:
1016:
1011:
1002:
1001:
999:
998:
991:
984:
977:
972:
957:Nectocarididae
954:
952:
948:
946:
942:
941:
938:
937:
935:
934:
926:
920:
910:
896:
890:
886:
883:
882:
880:
879:
874:
864:
861:Syllipsimopodi
840:
834:
824:
820:
819:
810:Monoplacophora
805:Plectronoceras
792:
786:
780:
779:
776:
775:
773:
772:
771:
770:
767:Belemnotheutis
763:
756:
743:
732:
730:
723:
720:
719:
717:
716:
710:
703:
700:
699:
697:
696:
689:
682:
675:
668:
661:
654:
649:
647:
646:Early coleoids
643:
640:
639:
637:
636:
630:
625:
623:
616:
610:
604:
603:
589:
587:
585:
584:
575:
573:
567:
566:
557:
555:
554:
547:
540:
532:
526:
525:
520:
519:
510:
501:
489:
471:
466:Orthoceratidae
455:
453:
450:
425:
422:
416:
413:
357:is an extinct
355:Orthoceratidae
350:
349:
346:Orthocerotidae
341:
340:
334:
333:
332:
331:
323:
315:
307:
299:
291:
283:
275:
267:
259:
251:
243:
235:
227:
219:
216:Michelinoceras
211:
208:Merocycloceras
203:
195:
187:
179:
171:
163:
152:
151:
147:
146:
137:Orthoceratidae
131:
127:
126:
118:
114:
113:
108:
104:
103:
98:
94:
93:
88:
84:
83:
78:
74:
73:
60:
59:
51:
50:
42:
41:
26:
24:Orthoceratidae
15:
13:
10:
9:
6:
4:
3:
2:
1175:
1164:
1161:
1159:
1156:
1154:
1151:
1149:
1146:
1145:
1143:
1126:
1121:
1117:
1113:
1108:
1104:
1100:
1095:
1091:
1087:
1082:
1078:
1074:
1069:
1065:
1061:
1056:
1052:
1048:
1042:
1037:
1031:
1027:
1026:
1024:
1022:
1018:
1014:
1009:
997:
996:
992:
990:
989:
985:
983:
982:
978:
976:
973:
970:
969:
964:
963:
958:
955:
953:
950:
949:
947:
945:Misidentified
943:
933:
932:
927:
925:
921:
919:
915:
911:
909:
905:
901:
897:
895:
891:
888:
887:
884:
878:
875:
873:
869:
865:
863:
862:
857:
856:
851:
850:
845:
841:
839:
835:
832:
828:
825:
822:
821:
817:
816:
811:
807:
806:
801:
797:
794:
793:
790:
787:
785:
781:
769:
768:
764:
762:
761:
757:
755:
754:
750:
749:
747:
744:
742:
741:
736:
733:
731:
729:
725:
724:
721:
715:
711:
708:
705:
704:
701:
695:
694:
690:
688:
687:
683:
681:
680:
676:
674:
673:
669:
667:
666:
665:Styletoctopus
662:
660:
659:
658:Proteroctopus
655:
653:
650:
648:
645:
644:
641:
635:
631:
629:
626:
624:
622:
618:
617:
614:
611:
609:
605:
601:
593:
583:
582:
577:
576:
574:
572:
568:
561:
553:
548:
546:
541:
539:
534:
533:
530:
523:
522:
514:
511:
505:
502:
496:
494:
490:
486:
485:
478:
476:
472:
469:
467:
460:
457:
451:
449:
447:
443:
439:
435:
431:
423:
421:
414:
412:
409:million years
408:
403:
399:
395:
391:
387:
383:
379:
375:
374:North America
371:
367:
364:
360:
356:
348:
347:
342:
339:
335:
330:
329:
324:
322:
321:
316:
314:
313:
308:
306:
305:
300:
298:
297:
292:
290:
289:
284:
282:
281:
276:
274:
273:
268:
266:
265:
260:
258:
257:
256:Palorthoceras
252:
250:
249:
244:
242:
241:
236:
234:
233:
228:
226:
225:
220:
218:
217:
212:
210:
209:
204:
202:
201:
200:Kopaninoceras
196:
194:
193:
188:
186:
185:
180:
178:
177:
172:
170:
169:
164:
162:
161:
160:Bitaunioceras
156:
155:
153:
148:
143:
138:
132:
129:
128:
125:
119:
116:
115:
112:
109:
106:
105:
102:
99:
96:
95:
92:
89:
86:
85:
82:
79:
76:
75:
70:
65:
61:
58:
57:
52:
48:
43:
38:
34:
30:
22:
19:
1020:
993:
988:Shelbyoceras
986:
981:Volborthella
979:
975:Kirengellida
966:
960:
929:
924:Tarphycerida
912:Brevicones:
908:Actinocerida
898:Orthocones:
872:Aulacocerids
859:
855:Gordoniconus
853:
847:
815:Knightoconus
813:
812:-like form:
803:
795:
765:
758:
751:
738:
693:Vampyronassa
691:
684:
679:Palaeoctopus
677:
670:
663:
656:
598:Evolution of
579:
513:
504:
482:
468:, basic info
465:
459:
442:body chamber
427:
418:
354:
353:
345:
344:
328:Trematoceras
326:
318:
310:
302:
294:
286:
278:
270:
262:
254:
248:Oxfordoceras
246:
238:
230:
222:
214:
206:
198:
190:
182:
174:
168:Chebbioceras
166:
158:
136:
54:
18:
1148:Orthocerida
928:Spirulid?:
904:Orthocerida
889:Early forms
760:Belemnopsis
735:Diplobelids
628:Nautilaceae
600:cephalopods
560:cephalopods
370:Nautiloidea
368:, subclass
366:cephalopods
363:carnivorous
280:Pojetoceras
124:Orthocerida
111:Cephalopoda
1142:Categories
968:Nectocotis
962:Nectocaris
931:Shimanskya
918:Oncocerida
914:Ascocerida
900:Endocerida
868:belemnoids
838:Bactritida
784:Palaeozoic
753:Belemnites
746:Belemnites
740:Diplobelus
728:belemnoids
621:nautiloids
581:Belosaepia
452:References
430:orthoconic
424:Morphology
394:Ordovician
232:Orthoceras
224:Ogygoceras
192:Kionoceras
176:Ctenoceras
56:Orthoceras
35:(possibly
29:Ordovician
995:Pohlsepia
866:Earliest
849:Jeletzkya
833:ammonoids
827:Goniatite
726:Advanced
714:Nautilida
709:ammonoids
707:Ceratitid
634:ammonites
619:Advanced
438:siphuncle
392:from the
390:Australia
312:Theoceras
87:Kingdom:
81:Eukaryota
1044:BioLib:
1036:Q7104416
1030:Wikidata
844:coleoids
831:ceratite
608:Mesozoic
571:Cenozoic
415:Taxonomy
398:Triassic
396:through
338:Synonyms
130:Family:
101:Mollusca
97:Phylum:
91:Animalia
77:Domain:
37:Triassic
1125:1374986
1099:4954623
1073:3246144
672:Keuppia
150:Genera
117:Order:
107:Class:
33:Permian
1112:103321
1086:103568
1047:601025
842:Early
434:shells
388:, and
386:Africa
378:Europe
359:family
144:, 1844
1120:WoRMS
1081:IRMNG
1060:7NWT4
712:late
632:True
446:lirae
407:286.4
142:McCoy
1068:GBIF
829:and
382:Asia
1055:CoL
959:: (
852:?,
402:mya
1144::
1122::
1109::
1096::
1083::
1070::
1057::
1032::
965:,
916:,
906:,
902:,
870::
858:,
846::
808:,
802::
798::
748::
737::
492:^
474:^
411:.
384:,
380:,
376:,
31:-
971:)
818:?
551:e
544:t
537:v
325:†
317:†
309:†
301:†
293:†
285:†
277:†
269:†
261:†
253:†
245:†
237:†
229:†
221:†
213:†
205:†
197:†
189:†
181:†
173:†
165:†
157:†
134:†
121:†
39:)
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