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 athttps://www.biodiversitylibrary.org/page/6330383 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]
original descriptionMeek, 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 athttps://www.biodiversitylibrary.org/page/6330383 page(s): 136 [details]
status sourceMeek, 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 athttps://www.biodiversitylibrary.org/page/1801632 page(s): 185 [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Homonymy Junior homonym of Planorbis fragilis Dunker, 1850; P. planoconvexus is a replacement name. [details] Type locality Fort Berthold Indian Reservation (Fort Berthold), North Dakota, United States; Fort Union Formation, Paleocene [details]
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