Cyrtonybyoceras
Cyrtonybyoceras is a genus of slightly exogastric members of the Wutinoceratidae, a family of actinocerids and probably derived from an earlier Wutinoceras . The shell of Cyrtonybyoceras is curved slightly upwardly and is slightly compressed. Sutures slope toward the aperture, from the dorsum to the venter. The siphuncle is ventral but not marginal, in general form like that of Nybyoceras. Upper and lower septal necks are recumbent or narrowly free. The canal system is reticular, characteristic of the Wutinoceratidae.
primaryTopic
Cyrtonybyoceras
Cyrtonybyoceras is a genus of slightly exogastric members of the Wutinoceratidae, a family of actinocerids and probably derived from an earlier Wutinoceras . The shell of Cyrtonybyoceras is curved slightly upwardly and is slightly compressed. Sutures slope toward the aperture, from the dorsum to the venter. The siphuncle is ventral but not marginal, in general form like that of Nybyoceras. Upper and lower septal necks are recumbent or narrowly free. The canal system is reticular, characteristic of the Wutinoceratidae.
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Cyrtonybyoceras is a genus of ...... n the Toquima Range in Nevada.
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Wikipage page ID
18,435,163
Wikipage revision ID
743,211,848
fossil range
genus
Cyrtonybyoceras
genus authority
Teichert, 1933
subject
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Cyrtonybyoceras is a genus of ...... ristic of the Wutinoceratidae.
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Cyrtonybyoceras
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Cyrtonybyoceras
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