MolluscaBase name details
Pilsbryus antiquus utahensis Yen, 1947 †
1422597 (urn:lsid:marinespecies.org:taxname:1422597)
unaccepted
Subspecies
fossil only
Yen, T.-C. (1947). Pliocene Fresh-Water Mollusks from Northern Utah. <em>Journal of Paleontology.</em> 21(3): 268-277.
page(s): 273, pl. 43, fig. 7 [details] Available for editors
[request]
page(s): 273, pl. 43, fig. 7 [details] Available for editors

Note USGS locality 20093, on the boundary between...
From editor or global species database
Type locality USGS locality 20093, on the boundary between Cache and Box Elder Counties, about 14 miles northwest of Logan, Utah, United States; Salt Lake Formation (Cache Valley Member), late Miocene [details]
Taxonomic remark P. antiquus was considered a junior synonym of Natica occidentalis Hall, 1845 by Taylor (1966: 76). The combination with...
Taxonomic remark P. antiquus was considered a junior synonym of Natica occidentalis Hall, 1845 by Taylor (1966: 76). The combination with Pilsbryus is however retained (see Hershler & Frest 1996: 8). [details]
MolluscaBase eds. (2021). MolluscaBase. Pilsbryus antiquus utahensis Yen, 1947 †. Accessed at: http://www.molluscabase.org/aphia.php?p=taxdetails&id=1422597 on 2025-09-11
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original description
Yen, T.-C. (1947). Pliocene Fresh-Water Mollusks from Northern Utah. <em>Journal of Paleontology.</em> 21(3): 268-277.
page(s): 273, pl. 43, fig. 7 [details] Available for editors
[request]
source of synonymy Taylor, D. W. (1966). Summary of North American Blancan nonmarine mollusks. <em>Malacologia.</em> 4(1): 1-172, pls 1−8., available online at https://www.biodiversitylibrary.org/page/13147234
page(s): 76 [details]
page(s): 273, pl. 43, fig. 7 [details] Available for editors

source of synonymy Taylor, D. W. (1966). Summary of North American Blancan nonmarine mollusks. <em>Malacologia.</em> 4(1): 1-172, pls 1−8., available online at https://www.biodiversitylibrary.org/page/13147234
page(s): 76 [details]




From editor or global species database
Taxonomic remark P. antiquus was considered a junior synonym of Natica occidentalis Hall, 1845 by Taylor (1966: 76). The combination with Pilsbryus is however retained (see Hershler & Frest 1996: 8). [details]Type locality USGS locality 20093, on the boundary between Cache and Box Elder Counties, about 14 miles northwest of Logan, Utah, United States; Salt Lake Formation (Cache Valley Member), late Miocene [details]