MolluscaBase taxon details
Plesielliptio priscus (F. B. Meek & Hayden, 1856) †
1500517 (urn:lsid:marinespecies.org:taxname:1500517)
accepted
Species
Unio priscus F. B. Meek & Hayden, 1856 † · unaccepted > superseded combination
fossil only
(of Unio priscus F. B. Meek & Hayden, 1856 †) Meek, F.B.; Hayden, F.V. (1856). Descriptions of New Species of Acephala and Gastropoda, from the Tertiary formations of Nebraska Territory, with some general remarks on the Geology of the country about the sources of the Missouri River. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 8: 111-126., available online at https://www.biodiversitylibrary.org/page/1935165
page(s): 117 [details]
page(s): 117 [details]
Holotype (of Unio priscus F. B. Meek & Hayden, 1856)...
, Type locality contained in Montana
Holotype (of Unio priscus F. B. Meek & Hayden, 1856) USNM 2162 [details]
type locality contained in Montana [from synonym] [view taxon] [details]
MolluscaBase eds. (2025). MolluscaBase. Plesielliptio priscus (Meek & Hayden, 1856) †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1500517 on 2026-06-07
Date
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original description
(of Unio priscus F. B. Meek & Hayden, 1856 †) Meek, F.B.; Hayden, F.V. (1856). Descriptions of New Species of Acephala and Gastropoda, from the Tertiary formations of Nebraska Territory, with some general remarks on the Geology of the country about the sources of the Missouri River. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 8: 111-126., available online at https://www.biodiversitylibrary.org/page/1935165
page(s): 117 [details]
basis of record Russell, L.S. (1974). Fauna and Correlation of the Ravenscrag Formation (Paleocene) of Southwestern Saskatchewan. <em>Royal Ontario Museum and University of Toronto, Life Sciences, Contributions.</em> 102: 1-53., available online at https://archive.org/details/faunacorrelation00russ [details] Available for editors
[request]
additional source Modell, H. (1957). Die fossilen Najaden Nordamerikas. Ein Klassifizierungsversuch. <em>Archiv für Molluskenkunde.</em> 86(4/6): 183-200.
page(s): 189 [details] Available for editors [request]
page(s): 117 [details]
basis of record Russell, L.S. (1974). Fauna and Correlation of the Ravenscrag Formation (Paleocene) of Southwestern Saskatchewan. <em>Royal Ontario Museum and University of Toronto, Life Sciences, Contributions.</em> 102: 1-53., available online at https://archive.org/details/faunacorrelation00russ [details] Available for editors
[request]additional source Modell, H. (1957). Die fossilen Najaden Nordamerikas. Ein Klassifizierungsversuch. <em>Archiv für Molluskenkunde.</em> 86(4/6): 183-200.
page(s): 189 [details] Available for editors
[request]
Present Inaccurate Introduced: alien Containing type locality
Holotype (of Unio priscus F. B. Meek & Hayden, 1856) USNM 2162 [details]
