Trachynautilus
| Trachynautilus Temporal range: Mid - Late Triassic
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|---|---|
| Scientific classification | |
| Kingdom: | Animalia
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| Phylum: | |
| Class: | Cephalopoda
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| Subclass: | Nautiloidea
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| Order: | |
| Family: | |
| Genus: | Trachynautilus Mojsisovics, 1902
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Trachynautilus is a member of the Tainoceratidae, named by Mojsisovics in 1902, with longitudinal ridges on the flanks of its high-arched involute shell. from the Upper Triassic of North America is similar except that its venter also has longitudinal ridges. Trachynautilus from the middle and Upper Triassic of Europe has a smooth venter.
References[]
- Bernhard Kummerl, 1964. Nautiloidea-Nautilida. Treatise on Invertebrate Paleontology Part K. Geological Society of America and University of Kansas Press.
Categories:
- Triassic animals of Europe
- Nautiloids
- Middle Triassic first appearances
- Late Triassic extinctions