Eophyllites
| Eophyllites Temporal range: Early Triassic (Scythian)
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| Phylum: | Mollusca
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| Genus: | Eophyllites Spath, 1930
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Eophyllites is a genus of ammonoid cephalopods from the Lower Triassic and a predecessor of genera like Monophyllites and Ussurites.
The shell of Eophyllites is evolute, discoidal; whorls compressed, deeply embracing; flanks gently convex, converging on a narrowly rounded venter. Sutures basically ceratitic; ventral lobe wide, divided by a high siphonal saddle; Lobesjagged, 1st lateral larger than the second; saddles monophyllic, smooth and rounded.
Related from the same age is ribbed on the outer flanks and lobes in the suture are more terminally digitate.
References[]
- W.J. Arkell, et al., 1957. Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology, Part L. Geological Society of America and University of Kansas Press
- Sepkoski's list of Cephalopod Genera
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Categories:
- Ammonite genera
- Triassic ammonites
- Triassic animals of Asia
- Ammonite stubs