MolluscaBase name details
Medionidus senectus declivis L. S. Russell, 1934 †
1504895 (urn:lsid:marinespecies.org:taxname:1504895)
unaccepted (superseded rank and combination)
Subspecies
fossil only
Russell, L.S. (1934). New fossil fresh-water Mollusca from the Cretaceous and Paleocene of Montana. <em>Journal of the Washington Academy of Sciences.</em> 24: 128-131., available online at https://www.biodiversitylibrary.org/page/39918518
page(s): 129-131, fig. 3 [details] Available for editors
[request]
page(s): 129-131, fig. 3 [details] Available for editors
[request]
Holotype USNM 75288
, Note "From SE. 1/4 of SE. 1/4, Sec. 10, T. 5 N. ,...
Holotype USNM 75288 [details]
Type locality "From SE. 1/4 of SE. 1/4, Sec. 10, T. 5 N. , R. 13 E., Sweetgrass county, Montana. About 4000 feet above base of 'No. 3' with highest mammals from Crazy Mountain Field, probably post-Torrejon", USA; Paleocene [details]
MolluscaBase eds. (2021). MolluscaBase. Medionidus senectus declivis Russell, 1934 †. Accessed at: http://molluscabase.org/aphia.php?p=taxdetails&id=1504895 on 2024-04-23
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The webpage text is licensed under a Creative Commons Attribution 4.0 License
original description
Russell, L.S. (1934). New fossil fresh-water Mollusca from the Cretaceous and Paleocene of Montana. <em>Journal of the Washington Academy of Sciences.</em> 24: 128-131., available online at https://www.biodiversitylibrary.org/page/39918518
page(s): 129-131, fig. 3 [details] Available for editors [request]
status source 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]
page(s): 129-131, fig. 3 [details] Available for editors
[request] status source 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] 
Present Inaccurate Introduced: alien Containing type locality
Holotype USNM 75288 [details]
From editor or global species database
Type locality "From SE. 1/4 of SE. 1/4, Sec. 10, T. 5 N. , R. 13 E., Sweetgrass county, Montana. About 4000 feet above base of 'No. 3' with highest mammals from Crazy Mountain Field, probably post-Torrejon", USA; Paleocene [details]
