MolluscaBase name details
Planorbis amplexus Meek & Hayden, 1857 †
1079314 (urn:lsid:marinespecies.org:taxname:1079314)
unaccepted > superseded combination (not a freshwater species)
Species
fossil only
Meek, F. B.; Hayden, F. V. (1857). Descriptions of new genera of fossils, collected by Dr. F.V. Hayden, in Nebraska territory, under the direction of Lieut. G.K. Warren, US Topographical Engineer; with some remarks on the Tertiary and Cretaceous formations of the north-west, and parallelism of the latter with those of other portions of the United States and Territories. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 9: 117–148., available online at https://www.biodiversitylibrary.org/page/6330383
page(s): 135-136 [details]
page(s): 135-136 [details]
Note Judith River mouth ("Bed C of the section of...
Type locality Judith River mouth ("Bed C of the section of freshwater and estuary deposits at mouth of Judith River"), Fergus County, Montana, United States; Judith River Formation, Campanian, late Cretaceous [details]
MolluscaBase eds. (2021). MolluscaBase. Planorbis amplexus Meek & Hayden, 1857 †. Accessed at: http://www.molluscabase.org/aphia.php?p=taxdetails&id=1079314 on 2025-09-11
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original description
Meek, F. B.; Hayden, F. V. (1857). Descriptions of new genera of fossils, collected by Dr. F.V. Hayden, in Nebraska territory, under the direction of Lieut. G.K. Warren, US Topographical Engineer; with some remarks on the Tertiary and Cretaceous formations of the north-west, and parallelism of the latter with those of other portions of the United States and Territories. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 9: 117–148., available online at https://www.biodiversitylibrary.org/page/6330383
page(s): 135-136 [details]
page(s): 135-136 [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Type locality Judith River mouth ("Bed C of the section of freshwater and estuary deposits at mouth of Judith River"), Fergus County, Montana, United States; Judith River Formation, Campanian, late Cretaceous [details]
