246:
423:
253:
205:
193:
830:
Weishampel, David B; et al. (2004). "Dinosaur distribution (Late
Cretaceous, Africa)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 604-605.
290:. Dinosaur remains are among the fossils that have been recovered from the formation. A wealth of Mosasaur fossils have also been recovered from this formation, particularly from the area around Mt. Igdaman.
925:"Dental and vertebral morphology of the enigmatic mosasaur Dollosaurus (Reptilia, Mosasauridae) from the lower Campanian (Upper Cretaceous) of southern Sweden"
1034:
R. T. J. Moody and P. J. C. Suttcliffe. 1991. The
Cretaceous deposits of the Iullemmeden Basin of Niger, central West Africa. Cretaceous Research 12:137-157
1087:
786:
791:
718:
1057:
781:
1052:
1047:
474:
Large mosasaur of uncertain affiliations. High number of foramina on the snout and small eyes indicate a murky-water hunter.
1015:
999:
245:
983:
836:
1097:
1082:
956:
102:
141:
1092:
1077:
1067:
509:
Represented here by four vertebrae, one from a juvenile. Fragmentary state makes identification difficult.
95:
1072:
1062:
469:
Geographically present on Mt. Igdaman. From the portion of the
Dukamaje Formation located in Niger.
642:
Massive mosasaurine mosasaur. Represented here by a fragmentary tooth crown. The first example of
1102:
1107:
38:
418:
Mid-sized globidensine mosasaur. Originally described as a plioplatecarpine. Durophagous.
8:
608:
Mid-sized plioplatecarpine mosasaur. Represented here by a single fragmentary vertebrae.
275:
803:
832:
753:
466:
Type locality unknown. From the portion of the
Dukamaje Formation located in Nigeria.
220:
936:
904:
Lingham-Soliar, Theagarten (1991). "Mosasaurs from the upper
Cretaceous of Niger".
798:
422:
553:
413:
Geographically present on Mt. Igdaman, near the village of
Igdaman (or In Daman).
287:
681:
396:
134:
1041:
941:
924:
760:
704:
444:
427:
334:
176:
156:
143:
117:
104:
28:
24:
575:
Mid-sized plioplatecarpine mosasaur. Represented here by several vertebrae.
688:
660:
486:
180:
1019:
1003:
987:
732:
725:
586:
746:
674:
667:
619:
520:
739:
711:
75:
767:
368:
302:
61:
283:
210:
83:
279:
198:
65:
79:
826:
824:
822:
820:
818:
542:
Mid-sized mosasaur. Represented here by four vertebrae.
353:
Geographically present in Département De Tahoua, Niger.
815:
787:
Lists of fossiliferous stratigraphic units in Africa
792:List of fossiliferous stratigraphic units in Niger
957:"Tongues, venom glands, and the changing face of
1039:
903:
929:Bulletin of the Geological Society of Denmark
1088:Fossiliferous stratigraphic units of Africa
252:
940:
922:
782:List of dinosaur-bearing rock formations
421:
367:
300:
1040:
637:Geographically present on Mt. Igdaman.
603:Geographically present on Mt. Igdaman.
570:Geographically present on Mt. Igdaman.
537:Geographically present on Mt. Igdaman.
504:Geographically present on Mt. Igdaman.
899:
897:
895:
893:
891:
889:
887:
885:
883:
881:
879:
877:
875:
873:
871:
869:
867:
865:
863:
861:
859:
857:
855:
853:
851:
849:
847:
845:
13:
1028:
14:
1119:
1058:Upper Cretaceous Series of Africa
842:
293:
251:
244:
203:
191:
364:
297:
1053:Geologic formations of Nigeria
1009:
993:
977:
949:
916:
286:whose strata date back to the
1:
809:
1048:Geologic formations of Niger
135:Approximate paleocoordinates
7:
775:
10:
1124:
371:of the Dukamaje Formation
359:
260:Dukamaje Formation (Niger)
984:Gilbedi Hills, Rima River
705:Asteracanthus aegyptiacus
420:
305:of the Dukamaje Formation
239:
235:Dukamaje, Sokoto, Nigeria
231:
226:
216:
186:
172:
133:
94:
89:
71:
57:
52:
44:
34:
23:
18:
942:10.37570/bgsd-2005-52-03
923:Lindgren, Johan (2005).
646:from Niger and Nigeria.
431:and juvenile elasmosaurs
48:Gypsiferous shale Member
1098:Paleontology in Nigeria
1083:Shallow marine deposits
661:Sokotosuchus ianwilsoni
747:Ischyrhiza nigeriensis
682:Trematochampsa taqueti
432:
1093:Paleontology in Niger
1000:Mont Igdaman (bed 25)
425:
726:Schizorhiza stromeri
39:Geological formation
1078:Mudstone formations
1068:Maastrichtian Stage
733:Stephanodus lybicus
153: /
114: /
25:Stratigraphic range
1016:In Touhout (bed 4)
804:Geology of Nigeria
740:Stratodus apicalis
712:Igdabatis sigmodon
433:
272:Dukamaje Formation
19:Dukamaje Formation
761:Ginglymostoma sp.
650:
649:
363:
362:
268:
267:
221:Iullemmeden Basin
1115:
1073:Shale formations
1063:Cretaceous Niger
1023:
1013:
1007:
997:
991:
981:
975:
974:
972:
971:
965:Tetrapod Zoology
953:
947:
946:
944:
920:
914:
913:
901:
840:
828:
799:Geology of Niger
689:Libycosuchus sp.
365:
298:
274:is a geological
255:
254:
248:
209:
207:
206:
197:
195:
194:
168:
167:
165:
164:
163:
158:
154:
151:
150:
149:
146:
129:
128:
126:
125:
124:
119:
115:
112:
111:
110:
107:
16:
15:
1123:
1122:
1118:
1117:
1116:
1114:
1113:
1112:
1038:
1037:
1031:
1029:Further reading
1026:
1014:
1010:
998:
994:
982:
978:
969:
967:
955:
954:
950:
921:
917:
902:
843:
829:
816:
812:
778:
773:
719:Lamna nigeriana
694:
554:Plioplatecarpus
296:
288:Late Cretaceous
264:
263:
262:
261:
258:
257:
256:
204:
202:
201:
192:
190:
179:
161:
159:
155:
152:
147:
144:
142:
140:
139:
122:
120:
116:
113:
108:
105:
103:
101:
100:
12:
11:
5:
1121:
1111:
1110:
1105:
1100:
1095:
1090:
1085:
1080:
1075:
1070:
1065:
1060:
1055:
1050:
1036:
1035:
1030:
1027:
1025:
1024:
1008:
992:
976:
948:
915:
841:
813:
811:
808:
807:
806:
801:
796:
795:
794:
784:
777:
774:
772:
771:
764:
757:
750:
743:
736:
729:
722:
715:
708:
700:
699:
698:
693:
692:
685:
678:
675:Podocnemis sp.
671:
668:Palaeophis sp.
664:
656:
655:
654:
653:Other reptiles
648:
647:
640:
639:
638:
633:
632:
631:
624:
623:
610:
609:
606:
605:
604:
599:
598:
597:
591:
590:
577:
576:
573:
572:
571:
566:
565:
564:
558:
557:
544:
543:
540:
539:
538:
533:
532:
531:
525:
524:
511:
510:
507:
506:
505:
500:
499:
498:
491:
490:
476:
475:
472:
471:
470:
467:
462:
461:
460:
455:
453:G. nigeriensis
449:
448:
435:
434:
419:
416:
415:
414:
409:
408:
407:
405:I. aegyptiacus
401:
400:
397:Igdamanosaurus
387:
386:
383:
380:
377:
373:
372:
361:
360:
358:
356:
355:
354:
349:
348:
347:
339:
338:
322:
321:
318:
315:
312:
308:
307:
295:
294:Fossil content
292:
266:
265:
259:
250:
249:
243:
242:
241:
240:
237:
236:
233:
229:
228:
224:
223:
218:
214:
213:
188:
184:
183:
174:
170:
169:
137:
131:
130:
98:
92:
91:
87:
86:
73:
69:
68:
59:
55:
54:
50:
49:
46:
42:
41:
36:
32:
31:
21:
20:
9:
6:
4:
3:
2:
1120:
1109:
1106:
1104:
1103:Tahoua Region
1101:
1099:
1096:
1094:
1091:
1089:
1086:
1084:
1081:
1079:
1076:
1074:
1071:
1069:
1066:
1064:
1061:
1059:
1056:
1054:
1051:
1049:
1046:
1045:
1043:
1033:
1032:
1021:
1017:
1012:
1005:
1001:
996:
989:
985:
980:
966:
962:
960:
959:Goronyosaurus
952:
943:
938:
934:
930:
926:
919:
911:
907:
906:Palaeontology
900:
898:
896:
894:
892:
890:
888:
886:
884:
882:
880:
878:
876:
874:
872:
870:
868:
866:
864:
862:
860:
858:
856:
854:
852:
850:
848:
846:
838:
837:0-520-24209-2
834:
827:
825:
823:
821:
819:
814:
805:
802:
800:
797:
793:
790:
789:
788:
785:
783:
780:
779:
770:
769:
765:
763:
762:
758:
756:
755:
754:Ceratodus sp.
751:
749:
748:
744:
742:
741:
737:
735:
734:
730:
728:
727:
723:
721:
720:
716:
714:
713:
709:
707:
706:
702:
701:
696:
695:
691:
690:
686:
684:
683:
679:
677:
676:
672:
670:
669:
665:
663:
662:
658:
657:
652:
651:
645:
641:
636:
635:
634:
630:
629:M. hoffmannii
626:
625:
622:
621:
617:
616:
615:
612:
611:
607:
602:
601:
600:
596:
593:
592:
589:
588:
584:
583:
582:
579:
578:
574:
569:
568:
567:
563:
560:
559:
556:
555:
551:
550:
549:
546:
545:
541:
536:
535:
534:
530:
527:
526:
523:
522:
518:
517:
516:
513:
512:
508:
503:
502:
501:
497:
493:
492:
489:
488:
483:
482:
481:
478:
477:
473:
468:
465:
464:
463:
459:
456:
454:
451:
450:
447:
446:
445:Goronyosaurus
442:
441:
440:
437:
436:
430:
429:
428:Goronyosaurus
424:
417:
412:
411:
410:
406:
403:
402:
399:
398:
394:
393:
392:
389:
388:
384:
381:
378:
375:
374:
370:
366:
357:
352:
351:
350:
345:
341:
340:
337:
336:
335:Bahariasaurus
331:
330:
329:
328:
324:
323:
319:
316:
313:
310:
309:
306:
304:
299:
291:
289:
285:
281:
277:
273:
247:
238:
234:
230:
225:
222:
219:
215:
212:
200:
189:
185:
182:
178:
175:
171:
166:
138:
136:
132:
127:
99:
97:
93:
88:
85:
81:
77:
74:
70:
67:
63:
60:
56:
51:
47:
43:
40:
37:
33:
30:
29:Maastrichtian
26:
22:
17:
1108:Sokoto State
1011:
995:
979:
968:. Retrieved
964:
958:
951:
932:
928:
918:
909:
905:
768:Pycnodus sp.
766:
759:
752:
745:
738:
731:
724:
717:
710:
703:
687:
680:
673:
666:
659:
643:
628:
618:
613:
594:
585:
580:
561:
552:
547:
528:
519:
514:
495:
487:Angolasaurus
485:
479:
457:
452:
443:
438:
426:
404:
395:
390:
382:Description
343:
333:
326:
325:
317:Description
301:
271:
269:
227:Type section
118:15.4°N 5.8°E
1020:Fossilworks
1004:Fossilworks
988:Fossilworks
587:Platecarpus
160: /
157:5.1°N 0.6°E
121: /
96:Coordinates
1042:Categories
970:2017-01-11
912:: 653–670.
810:References
644:Mosasaurus
620:Mosasaurus
521:Halisaurus
935:: 17–25.
379:Presence
369:Mosasaurs
344:B. ingens
314:Presence
303:Dinosaurs
276:formation
232:Named for
123:15.4; 5.8
76:Siltstone
53:Lithology
45:Sub-units
776:See also
162:5.1; 0.6
90:Location
62:Mudstone
385:Images
320:Images
284:Nigeria
211:Nigeria
187:Country
106:15°24′N
58:Primary
835:
697:Fishes
614:Genus:
595:P. sp.
581:Genus:
562:P. sp.
548:Genus:
529:H. sp.
515:Genus:
496:A. sp.
480:Genus:
458:G. sp.
439:Genus:
391:Genus:
327:Genus:
217:Extent
208:
196:
181:Sokoto
177:Tahoua
173:Region
148:0°36′E
145:5°06′N
109:5°48′E
84:gypsum
376:Taxa
311:Taxa
280:Niger
199:Niger
72:Other
66:shale
1022:.org
1006:.org
990:.org
833:ISBN
627:cf.
282:and
270:The
80:marl
35:Type
1018:at
1002:at
986:at
937:doi
278:in
1044::
963:.
933:52
931:.
927:.
910:34
908:.
844:^
817:^
82:,
78:,
64:,
27::
973:.
961:"
945:.
939::
839:.
494:?
484:?
346:.
342:?
332:?
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
