original description
Clark, B. L. (1938). Fauna of the Markley Formation (Upper Eocene) on Pleasant Creek, California. <em>Bulletin of the Geological Society of America.</em> 49: 683-730., available online at https://doi.org/10.1130/GSAB-49-683
page(s): 705-706, pl. 3, figs 31, 36 [details] Available for editors [request]
status source
Squires, R.L. (1999). Middle Eocene Brackish-Marine Mollusks from the Matilija Sandstone at Matilija Hot Springs, Ventura County, Southern Carolina. <em>Contributions in Science.</em> 480: 1-30.
page(s): 16 [details] Available for editors [request]
From editor or global species database
Type locality Vacaville (Pleasant Creek, near Brink ranch), California, United States; Markley Formation, middle Eocene [details]