MolluscaBase name details
Unio pyramidellus Whitfield, 1907 †
1503040 (urn:lsid:marinespecies.org:taxname:1503040)
unaccepted > superseded combination
Species
fossil only
Whitfield, R.P. (1907). Remarks on and descriptions of new fossil Unionidae from the Laramie clays of Montana. <em>Bulletin of the American Museum of Natural History.</em> 23(26): 623-628., available online at http://digitallibrary.amnh.org/handle/2246/650
page(s): 625, pl. 40, figs 3-4 [details]
page(s): 625, pl. 40, figs 3-4 [details]
Holotype AMNH 26297
, Note "130 miles northwest of Miles City, Montana,...
Holotype AMNH 26297 [details]
Type locality "130 miles northwest of Miles City, Montana, 80 feet above Fort Pierre shales", USA; Laramie Fm., Maastrichtian, Late Cretaceous [details]
MolluscaBase eds. (2025). MolluscaBase. Unio pyramidellus Whitfield, 1907 †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1503040 on 2025-09-12
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original description
Whitfield, R.P. (1907). Remarks on and descriptions of new fossil Unionidae from the Laramie clays of Montana. <em>Bulletin of the American Museum of Natural History.</em> 23(26): 623-628., available online at http://digitallibrary.amnh.org/handle/2246/650
page(s): 625, pl. 40, figs 3-4 [details]
basis of record Henderson, J. (1935). Fossil non-marine Mollusca of North America. <em>Geological Society of America Special Papers.</em> 3: 1-313.
page(s): 87 [details] Available for editors
[request]
page(s): 625, pl. 40, figs 3-4 [details]
basis of record Henderson, J. (1935). Fossil non-marine Mollusca of North America. <em>Geological Society of America Special Papers.</em> 3: 1-313.
page(s): 87 [details] Available for editors
[request]
Present Inaccurate Introduced: alien Containing type locality
Holotype AMNH 26297 [details]
From editor or global species database
Type locality "130 miles northwest of Miles City, Montana, 80 feet above Fort Pierre shales", USA; Laramie Fm., Maastrichtian, Late Cretaceous [details]
