MolluscaBase name details
Planorbis fragilis Meek & Hayden, 1857 †
1420174 (urn:lsid:marinespecies.org:taxname:1420174)
unaccepted > junior homonym (invalid; not Dunker, 1850)
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): 136 [details]
page(s): 136 [details]
Note Fort Berthold Indian Reservation (Fort...
From editor or global species database
Type locality Fort Berthold Indian Reservation (Fort Berthold), North Dakota, United States; Fort Union Formation, Paleocene [details]
Homonymy Junior homonym of Planorbis fragilis Dunker, 1850; P. planoconvexus is a replacement name.
Homonymy Junior homonym of Planorbis fragilis Dunker, 1850; P. planoconvexus is a replacement name. [details]
MolluscaBase eds. (2025). MolluscaBase. Planorbis fragilis Meek & Hayden, 1857 †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1420174 on 2025-04-04
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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): 136 [details]
status source Meek, F.B.; Hayden, F.V. (1860). Descriptions of new Organic Remains from the Tertiary, Cretaceous and Jurassic Rocks of Nebraska. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 12: 175-185., available online at https://www.biodiversitylibrary.org/page/1801632
page(s): 185 [details]
page(s): 136 [details]
status source Meek, F.B.; Hayden, F.V. (1860). Descriptions of new Organic Remains from the Tertiary, Cretaceous and Jurassic Rocks of Nebraska. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 12: 175-185., available online at https://www.biodiversitylibrary.org/page/1801632
page(s): 185 [details]
Present Inaccurate Introduced: alien Containing type locality
