MolluscaBase name details
Amphiscapha (Cylicioscapha) williamsi Yochelson, 1956 †
1862628 (urn:lsid:marinespecies.org:taxname:1862628)
unaccepted > superseded combination
Species
marine, brackish, fresh, terrestrial
fossil only
Yochelson, E. L. (1956). Permian Gastropoda of the southwestern United States. 1. Euomphalacea, Trochonematacea, Pesudophoracea, Anomphalacea, Craspedostomatacea, and Platyceratacea. <em>Bulletin of the American Museum of Natural History.</em> 110(3): 173-276.
page(s): 227-228, pl. 13, figs 12-14, 16-19 [details] Available for editors
[request]
page(s): 227-228, pl. 13, figs 12-14, 16-19 [details] Available for editors
[request]
Type locality contained in Texas
type locality contained in Texas [details]
MolluscaBase eds. (2026). MolluscaBase. Amphiscapha (Cylicioscapha) williamsi Yochelson, 1956 †. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=1862628 on 2026-03-18
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original description
Yochelson, E. L. (1956). Permian Gastropoda of the southwestern United States. 1. Euomphalacea, Trochonematacea, Pesudophoracea, Anomphalacea, Craspedostomatacea, and Platyceratacea. <em>Bulletin of the American Museum of Natural History.</em> 110(3): 173-276.
page(s): 227-228, pl. 13, figs 12-14, 16-19 [details] Available for editors [request]
page(s): 227-228, pl. 13, figs 12-14, 16-19 [details] Available for editors
[request]
Present Inaccurate Introduced: alien Containing type locality
