MolluscaBase taxon details
original description
(of Helix veterna Meek & Hayden, 1861 †) Meek, F. B. & Hayden, F. V. (1861). Descriptions of new lower Silurian, (Primordial), Jurassic, Cretaceous, and Tertiary Fossils, collected in Nebraska, by the Exploring Expedition under the command of Capt. Wm. F. Raynolds, U. S. Top. Engrs.; with some remarks on the rocks from which they were obtained. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 13: 415-447., available online at https://www.biodiversitylibrary.org/page/26313121
page(s): 447 [details]
basis of record
Roth, B. (1986). Land mollusks (Gastropoda: Pulmonata) from Early Tertiary Bozeman Group, Montana. <em>Proceedings of the California Academy of Sciences.</em> 44(11): 237-267., available online at https://www.biodiversitylibrary.org/page/16005679
page(s): 264 [details] Available for editors [request]