MolluscaBase source details
Helix evansi Meek & Hayden, 1860 † (original description)
Planorbis fragilis Meek & Hayden, 1857 † accepted as Planorbis planoconvexus Meek & Hayden, 1860 † (status source)
Planorbis leidyi Meek & Hayden, 1860 † (original description)
Planorbis planoconvexus Meek & Hayden, 1860 † (original description)
Planorbis vetulus Meek & Hayden, 1860 † accepted as Menetus vetulus (Meek & Hayden, 1860) † (original description)
Sphaerium planum Meek & Hayden, 1860 † (original description)
Sphaerium recticardinale Meek & Hayden, 1860 † (original description)
Trigonia conradi Meek & Hayden, 1860 † (original description)
Montana for Helix evansi Meek & Hayden, 1860 †
Montana for Sphaerium planum Meek & Hayden, 1860 †
Montana for Sphaerium recticardinale Meek & Hayden, 1860 †
North Dakota for Planorbis planoconvexus Meek & Hayden, 1860 †
South Dakota for Planorbis leidyi Meek & Hayden, 1860 †
South Dakota for Planorbis vetulus Meek & Hayden, 1860 †
Replacement name for Helix occidentalis Meek & Hayden, 1857, non Récluz, 1845. [details]
"Estuary beds, near mouth of Judith River", Montana, USA; Judith River Fm., Campanian, Late Cretaceous [details]
"mouth of Judith River", Montana, United States [details]
White River badlands, Oglala Lakota County, South Dakota, United States; White River Formation, late Eocene to ... [details]
Fort Berthold Indian Reservation (Fort Berthold), North Dakota, United States; Fort Union Formation, Paleocene [details]
White River badlands, Oglala Lakota County, South Dakota, United States; White River Formation, late Eocene to ... [details]
"Near the mouth of Grand River on the Upper Missouri", Montana, USA; Judith River Fm., Campanian, Late Cretaceous [details]
"Near the mouth of Grand River on the Upper Missouri", Montana, USA; Judith River Fm., Campanian, Late Cretaceous [details]