MolluscaBase name details
Pachychilus drakei R. Arnold & Hannibal, 1912 †
1262579 (urn:lsid:marinespecies.org:taxname:1262579)
unaccepted > superseded combination
Species
fossil only
Hannibal, H. (1912). A synopsis of the recent and Tertiary freshwater Mollusca of the Californian province, based upon an ontogenetic classification. <em>Proceedings of the Malacological Society of London.</em> 10(2): 112-166, pls 5-6; 10(3): 167-211, pls 7-8., available online at http://biodiversitylibrary.org/page/15237075
page(s): 183, pl. 8, fig. 26 [details]
page(s): 183, pl. 8, fig. 26 [details]
Note Bluffs along Olequa Creek at bend below Vader...
Type locality Bluffs along Olequa Creek at bend below Vader ("Little Falls"), Washington, United States; Cowlitz Formation, Bartonian, late Eocene [details]
MolluscaBase eds. (2021). MolluscaBase. Pachychilus drakei Arnold & Hannibal in Hannibal, 1912 †. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=1262579 on 2025-09-11
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original description
Hannibal, H. (1912). A synopsis of the recent and Tertiary freshwater Mollusca of the Californian province, based upon an ontogenetic classification. <em>Proceedings of the Malacological Society of London.</em> 10(2): 112-166, pls 5-6; 10(3): 167-211, pls 7-8., available online at http://biodiversitylibrary.org/page/15237075
page(s): 183, pl. 8, fig. 26 [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): 213 [details] Available for editors
[request]
page(s): 183, pl. 8, fig. 26 [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): 213 [details] Available for editors
[request]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Type locality Bluffs along Olequa Creek at bend below Vader ("Little Falls"), Washington, United States; Cowlitz Formation, Bartonian, late Eocene [details]
