original description
Meek, F.B. (1870). Descriptions of fossils collected by the U. S. Geological Survey under the charge of Clerence King, Esq. <em>Proceedings of the Academy of Natural Sciences of Philadelphia</em>. 22: 56-64, available online at https://www.biodiversitylibrary.org/page/26300427
page(s): 59 [details]
From editor or global species database
Type locality Fossil Hill ("Fossil Hill, Hotspring Mountains, Idaho Territory"), Nevada, United States; Pliocene [details]