853:
115:
793:
517:
Williamson, Thomas E.; Kirkland, James I.; Lucas, Spencer G. (1993). "Selachians from the
Greenhorn Cyclothem ("Middle" Cretaceous: Cenomanian–Turonian), Black Mesa, Arizona, and the Paleogeographic distribution of Late Cretaceous selachians".
553:
Leidy (1856) - Notice of remains of extinct vertebrated animals of New-Jersey, collected by Prof. Cook of the State
Geological Survey under the direction of Dr. W. Kitchell. Proceedings of the Academy of Natural Sciences of Philadelphia, 8:
544:
ESTES, R. (1964) Fossil vertebrates from the Late
Cretaceous Lance Formation, Eastern Wyoming. University of California Publications in Geological Sciences, 49: 1–180, 73 fig., 5 pl.
1026:
837:
739:
916:
897:
931:
1021:
981:
971:
713:
1066:
921:
1011:
926:
591:"The first skeletal record of the enigmatic Cretaceous sawfish genus Ptychotrygon (Chondrichthyes, Batoidea) from the Turonian of Morocco"
1071:
830:
653:
936:
890:
1006:
976:
951:
1081:
961:
823:
883:
1036:
1031:
966:
1061:
1001:
996:
991:
986:
1076:
1046:
1041:
956:
946:
941:
1056:
1051:
1016:
635:
564:
668:
765:
700:
490:
486:
618:
482:
478:
474:
130:
770:
752:
744:
610:
460:
427:
405:
192:
867:
807:
757:
602:
590:
527:
435:
494:
470:
434:. Despite formerly being classified within a family of extinct sawfish-like rays known as
412:
165:
910:
622:
420:
72:
17:
852:
456:
447:
224:
215:
800:
726:
641:
441:
47:
860:
803:
531:
416:
177:
114:
92:
57:
691:
614:
463:
97:
589:
Villalobos‐Segura, Eduardo; Underwood, Charlie J.; Ward, David J. (2019).
685:
408:
153:
87:
82:
67:
62:
52:
792:
718:
469:
Fossils of the genus have been found in Canada, the United States, the
452:
431:
247:
102:
77:
731:
606:
141:
662:
401:
863:
705:
451:
form a distinct clade that groups closer with the extant family
666:
871:
811:
379:
368:
357:
346:
335:
324:
313:
302:
294:
283:
275:
264:
256:
231:
204:
189:
675:
891:
831:
8:
898:
884:
838:
824:
663:
113:
31:
1027:Late Cretaceous animals of South America
430:closely resembling that of a modern-day
512:
510:
506:
438:, phylogenetic analyses indicate that
917:Prehistoric cartilaginous fish genera
27:Extinct genus of cartilaginous fishes
7:
849:
847:
789:
787:
870:. You can help Knowledge (XXG) by
810:. You can help Knowledge (XXG) by
459:, possibly rendering the suborder
25:
1022:Prehistoric fish of South America
982:Cretaceous fish of North America
851:
791:
972:Paleogene fish of North America
565:"Fossilworks: Sclerorhynchidae"
1:
1067:Fossil taxa described in 1856
932:Cretaceous–Paleogene boundary
922:Cretaceous cartilaginous fish
1012:Fossils of the United States
927:Paleocene cartilaginous fish
1098:
1072:Prehistoric Batoidea stubs
846:
786:
455:, which contains the true
937:Cretaceous fish of Africa
654:The Paleobiology Database
532:10.1017/s002233600003691x
353:Weiler & Albers, 1964
253:
246:
230:
223:
131:Scientific classification
129:
121:
112:
34:
1007:Cretaceous United States
426:It had a large, toothed
309:Cappetta & Case 1975
977:Paleogene United States
952:Cretaceous fish of Asia
595:Papers in Palaeontology
520:Journal of Paleontology
1082:Cretaceous fish stubs
962:Fossils of Uzbekistan
859:This article about a
766:Paleobiology Database
18:Ischyrhiza schneideri
491:Quiriquina Formation
799:This article about
656:accessed on 8/21/09
487:El Molino Formation
477:of Uzbekistan, the
1037:Fossils of Bolivia
1032:Cretaceous Bolivia
967:Bissekty Formation
493:of Chile, and the
483:Dukamaje Formation
479:Tamayama Formation
475:Bissekty Formation
1062:Sclerorhynchoidei
1002:Fossils of Mexico
997:Cretaceous Mexico
992:Fossils of Canada
987:Cretaceous Canada
879:
878:
819:
818:
781:
780:
753:Open Tree of Life
669:Taxon identifiers
607:10.1002/spp2.1287
461:Sclerorhynchoidei
393:
392:
387:
376:
365:
354:
343:
332:
321:
310:
291:
272:
193:Sclerorhynchoidei
16:(Redirected from
1089:
1077:Rajiformes stubs
1047:Fossils of Chile
1042:Cretaceous Chile
957:Fossils of Japan
947:Fossils of Niger
942:Cretaceous Niger
900:
893:
886:
855:
848:
840:
833:
826:
795:
788:
774:
773:
761:
760:
748:
747:
735:
734:
722:
721:
709:
708:
696:
695:
694:
664:
657:
651:
645:
633:
627:
626:
586:
580:
579:
577:
575:
561:
555:
551:
545:
542:
536:
535:
514:
489:of Bolivia, the
436:Sclerorhynchidae
385:
381:
374:
370:
363:
359:
352:
348:
341:
339:I. hartenbergeri
337:
330:
326:
319:
315:
308:
304:
296:
289:
285:
277:
270:
266:
258:
233:
206:
191:
117:
107:
44:
40:Temporal range:
32:
21:
1097:
1096:
1092:
1091:
1090:
1088:
1087:
1086:
1057:Fossils of Peru
1052:Cretaceous Peru
1017:Demopolis Chalk
907:
906:
905:
904:
845:
844:
784:
782:
777:
769:
764:
756:
751:
743:
738:
730:
725:
717:
712:
704:
699:
690:
689:
684:
671:
661:
660:
652:
648:
634:
630:
588:
587:
583:
573:
571:
569:fossilworks.org
563:
562:
558:
552:
548:
543:
539:
516:
515:
508:
503:
495:Chota Formation
473:of Mexico, the
471:Aguja Formation
413:Late Cretaceous
406:sclerorhynchoid
242:
239:
236:Ischyrhiza mira
219:
213:
212:
195:
180:
168:
156:
144:
125:rostral spines
123:Ischyrhiza mira
108:
106:
105:
100:
95:
90:
85:
80:
75:
70:
65:
60:
55:
50:
43:Late Cretaceous
42:
41:
38:
28:
23:
22:
15:
12:
11:
5:
1095:
1093:
1085:
1084:
1079:
1074:
1069:
1064:
1059:
1054:
1049:
1044:
1039:
1034:
1029:
1024:
1019:
1014:
1009:
1004:
999:
994:
989:
984:
979:
974:
969:
964:
959:
954:
949:
944:
939:
934:
929:
924:
919:
909:
908:
903:
902:
895:
888:
880:
877:
876:
856:
843:
842:
835:
828:
820:
817:
816:
796:
779:
778:
776:
775:
762:
749:
736:
723:
710:
697:
681:
679:
673:
672:
667:
659:
658:
646:
628:
581:
556:
546:
537:
526:(3): 447–474.
505:
504:
502:
499:
485:of Niger, the
481:of Japan, the
400:is an extinct
391:
390:
389:
388:
377:
366:
364:Cappetta, 1981
355:
344:
342:Cappetta, 1975
333:
328:I. nigeriensis
322:
311:
300:
292:
281:
273:
262:
251:
250:
244:
243:
240:
228:
227:
221:
220:
214:
203:
201:
197:
196:
188:
186:
182:
181:
176:
174:
170:
169:
166:Chondrichthyes
164:
162:
158:
157:
152:
150:
146:
145:
140:
138:
134:
133:
127:
126:
119:
118:
110:
109:
101:
96:
91:
86:
81:
76:
71:
66:
61:
56:
51:
46:
45:
39:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
1094:
1083:
1080:
1078:
1075:
1073:
1070:
1068:
1065:
1063:
1060:
1058:
1055:
1053:
1050:
1048:
1045:
1043:
1040:
1038:
1035:
1033:
1030:
1028:
1025:
1023:
1020:
1018:
1015:
1013:
1010:
1008:
1005:
1003:
1000:
998:
995:
993:
990:
988:
985:
983:
980:
978:
975:
973:
970:
968:
965:
963:
960:
958:
955:
953:
950:
948:
945:
943:
940:
938:
935:
933:
930:
928:
925:
923:
920:
918:
915:
914:
912:
901:
896:
894:
889:
887:
882:
881:
875:
873:
869:
865:
862:
857:
854:
850:
841:
836:
834:
829:
827:
822:
821:
815:
813:
809:
805:
802:
797:
794:
790:
785:
772:
767:
763:
759:
754:
750:
746:
741:
737:
733:
728:
724:
720:
715:
711:
707:
702:
698:
693:
687:
683:
682:
680:
678:
674:
670:
665:
655:
650:
647:
643:
639:
638:
632:
629:
624:
620:
616:
612:
608:
604:
600:
596:
592:
585:
582:
570:
566:
560:
557:
550:
547:
541:
538:
533:
529:
525:
521:
513:
511:
507:
500:
498:
496:
492:
488:
484:
480:
476:
472:
467:
465:
462:
458:
454:
450:
449:
444:
443:
437:
433:
429:
424:
422:
421:Maastrichtian
418:
414:
410:
407:
403:
399:
398:
386:(Clark, 1895)
384:
378:
375:(Leidy, 1856)
373:
367:
362:
356:
351:
345:
340:
334:
331:Tabaste, 1963
329:
323:
318:
312:
307:
301:
299:
293:
288:
282:
280:
279:I. marrocanus
274:
269:
263:
261:
255:
254:
252:
249:
245:
238:
237:
229:
226:
222:
217:
211:
210:
202:
199:
198:
194:
187:
184:
183:
179:
175:
172:
171:
167:
163:
160:
159:
155:
151:
148:
147:
143:
139:
136:
135:
132:
128:
124:
120:
116:
111:
104:
99:
94:
89:
84:
79:
74:
69:
64:
59:
54:
49:
37:
33:
30:
19:
872:expanding it
858:
812:expanding it
798:
783:
676:
649:
636:
631:
598:
594:
584:
572:. Retrieved
568:
559:
549:
540:
523:
519:
468:
464:paraphyletic
448:Onchopristis
446:
440:Ischyrhiza,
439:
425:
396:
395:
394:
382:
371:
360:
350:I. germaniae
349:
338:
327:
320:Nessov, 1997
316:
305:
297:
286:
278:
268:I. avonicola
267:
259:
235:
234:
225:Type species
208:
207:
122:
35:
29:
801:prehistoric
727:iNaturalist
642:Fossilworks
601:: 353–376.
574:17 December
442:Schizorhiza
298:I. stromeri
290:Leidy, 1856
271:Estes, 1964
260:I. antiquus
241:Leidy, 1856
911:Categories
861:Cretaceous
804:Rajiformes
677:Ischyrhiza
637:Ischyrhiza
501:References
417:Cenomanian
397:Ischyrhiza
383:I. radiata
372:I. antiqua
209:Ischyrhiza
185:Suborder:
178:Rajiformes
36:Ischyrhiza
623:210302939
615:2056-2802
497:of Peru.
411:from the
361:I. viaudi
306:I. texana
137:Kingdom:
686:Wikidata
317:I. serra
154:Chordata
149:Phylum:
142:Animalia
758:3595351
745:1057297
719:4824857
706:4655141
692:Q887854
554:220–221
453:Rajidae
432:sawfish
428:rostrum
287:I. mira
248:Species
200:Genus:
173:Order:
161:Class:
732:709544
621:
613:
457:skates
445:, and
218:, 1856
866:is a
806:is a
771:34688
740:IRMNG
619:S2CID
402:genus
216:Leidy
868:stub
864:fish
808:stub
714:GBIF
644:.org
611:ISSN
576:2021
48:PreꞒ
701:EoL
640:at
603:doi
528:doi
423:).
409:ray
404:of
913::
768::
755::
742::
729::
716::
703::
688::
617:.
609:.
597:.
593:.
567:.
524:67
522:.
509:^
466:.
98:Pg
899:e
892:t
885:v
874:.
839:e
832:t
825:v
814:.
625:.
605::
599:7
578:.
534:.
530::
419:-
415:(
380:†
369:†
358:†
347:†
336:†
325:†
314:†
303:†
295:†
284:†
276:†
265:†
257:†
232:†
205:†
190:†
103:N
93:K
88:J
83:T
78:P
73:C
68:D
63:S
58:O
53:Ꞓ
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.