386:
659:
153:
774:
118:
620:
366:
epoch (approximately 76 Ma). It is one of the most bizarrely shaped genera, with a shell that spirals upwards into a loose, hooked tip. It is thought to have drifted in the water vertically, moving up and down. The generic name is Greek for "paired horns".
385:
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133:
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139:
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127:
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621:"LATE CAMPANIAN (CRETACEOUS) HETEROMORPH AMMONITES FROM THE WESTERN INTERIOR OF THE UNITED STATES"
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Kennedy, W. J.; Landman, N. H.; Cobban, W. A.; Scott, G. R. (2000-04-01).
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Its taxonomic place is often in flux, being placed in either
637:
10.1206/0003-0090(2000)251<0001:LCCHAF>2.0.CO;2
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683:
382:. Species included in the genus are the following:
625:Bulletin of the American Museum of Natural History
809:
8:
850:Late Cretaceous ammonites of North America
816:
802:
671:
116:
31:
585:
7:
770:
768:
788:. You can help Knowledge (XXG) by
25:
394:Houston Museum of Natural Science
772:
657:
151:
1:
855:Taxa named by Alpheus Hyatt
523:Didymoceras subtuberculatum
125:Artist's reconstruction of
876:
767:
337:Kennedy & Cobban, 1993
27:Genus of molluscs (fossil)
531:Didymoceras tenuicostatus
507:Didymoceras platycostatum
298:
291:
284:
277:
148:Scientific classification
146:
124:
115:
34:
510:Kennedy and Cobban, 1993
473:Didymoceras navarroensis
417:Didymoceras californicum
412:Kennedy and Cobban, 1993
600:. Paleobiology Database
571:Didymoceras vespertinus
566:(Meek and Hayden, 1858)
558:(Meek and Hayden, 1858)
547:Didymoceras tricostatus
542:(Meek and Hayden, 1858)
534:(Meek and Hayden, 1858)
482:Didymoceras nebrascense
444:(Meek and Hayden, 1858)
436:(Meek and Hayden, 1856)
433:Didymoceras cheyennense
428:(Meek and Hayden, 1856)
404:(Meek and Hayden, 1860)
784:-related article is a
555:Didymoceras umbilicatu
515:Didymoceras stevensoni
499:Didymoceras nicolletii
486:Meek and Hayden, 1856)
465:Didymoceras hornbyense
441:Didymoceras cochleatus
425:Didymoceras cheyenense
396:
18:Didymoceras hornbyense
750:Paleobiology Database
502:(Hall and Meek, 1856)
449:Didymoceras hidakense
409:Didymoceras binodosum
401:Didymoceras angulatum
392:shell exhibit in the
388:
378:, or its own family,
845:Cretaceous ammonites
134:D. nebrascensis
665:Paleontology portal
647:– via BioOne.
491:Didymoceras newtoni
539:Didymoceras tortus
397:
140:D. cheyennese
128:D. stevensoni
835:Ammonitida genera
797:
796:
765:
764:
677:Taxon identifiers
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567:
563:Didymoceras uncus
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551:
550:(Whitfield, 1897)
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518:(Whitfield, 1877)
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494:(Whitfield, 1877)
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16:(Redirected from
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860:Ammonitida stubs
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334:Didymoceratoides
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40:Temporal range:
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476:(Shumard, 1861)
380:Didymoceratidae
364:Late Cretaceous
321:Whitfield, 1877
313:d'Orbigny, 1842
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840:Nostoceratidae
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376:Nostoceratidae
351:is an extinct
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631:(251): 1β86.
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390:D. stevensoni
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790:expanding it
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604:February 21,
602:. Retrieved
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372:Turrilitidae
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305:Conrad, 1866
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715:Didymoceras
709:Wikispecies
685:Didymoceras
598:Hyatt 1900"
596:Didymoceras
348:Didymoceras
329:Hyatt, 1894
326:Emperoceras
318:Helicoceras
310:Helicoceras
264:Didymoceras
195:Cephalopoda
36:Didymoceras
829:Categories
782:Ammonitida
580:References
360:cephalopod
302:Cirroceras
227:Suborder:
221:Ammonitida
208:Ammonoidea
201:Subclass:
700:Q19931501
645:0003-0090
362:from the
286:See text
249: (?)
171:Kingdom:
165:Eukaryota
45:Campanian
694:Wikidata
456:Shigeta
452:Shigeta
357:ammonite
293:Synonyms
240:Family:
185:Mollusca
181:Phylum:
175:Animalia
161:Domain:
742:7235210
279:Species
256:Genus:
214:Order:
191:Class:
643:
460:, 2016
458:et al.
272:, 1894
137:, and
43:Upper
780:This
755:14774
353:genus
270:Hyatt
786:stub
737:GBIF
729:457N
641:ISSN
629:2000
606:2012
51:Preκ
724:CoL
633:doi
355:of
831::
752::
739::
726::
711::
696::
639:.
627:.
623:.
454:in
374:,
131:,
101:Pg
817:e
810:t
803:v
792:.
635::
608:.
594:"
260:β
244:β
231:β
218:β
205:β
106:N
96:K
91:J
86:T
81:P
76:C
71:D
66:S
61:O
56:κ
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
