Amphiscapha
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| Amphiscapha | |
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| Genus: | Amphiscapha J.B. Knight, 1942
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Amphiscapha is a fossil gastropod mollusk, or less likely a monoplacophoran, genus from the Pennsylvanian and Lower Permian of North and South America, included in the family Euomphalidae. It is sometimes regarded as a subgenus of Straparollus, S. (Amphiscapha) Knight 1942
Description
The shell in this genus is hyper strophic discoidal, with a flat base and a concave upper side. The location of what is presumed to be the exhalent channel is marked by a smooth or rugose ridge along the upper-outer margin, which lies along the edge of a flat to concave outer rim.
References
- J. B. Knight et al. 1960. Systematic descriptions; Treatise on Invertebrate Paleontology; Part I, Mollusca(1): I192.
- Paleobiology database info on Amphiscapha
Categories:
- Articles with short description
- Short description with empty Wikidata description
- Articles with 'species' microformats
- Taxonbars desynced from Wikidata
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- Euomphalidae
- Pennsylvanian first appearances
- Cisuralian genus extinctions
- Carboniferous gastropods
- Permian gastropods
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- Prehistoric gastropod stubs