Where: Wheeler County, Oregon (44.5° N, 119.7° W: paleocoordinates 44.4° N, 114.3° W)

• coordinate based on nearby landmark

When: Mascall Formation, Hemingfordian to Hemingfordian (20.4 - 12.5 Ma)

• age estimate based on other Mascall Fm. localities; no age given in original publication

Environment/lithology: lacustrine; lithology not reported

Size class: macrofossils

Collected by University of California; reposited in the UCMP

Primary reference: R. E. C. Stearns. 1906. Fossil Mollusca from the John Day and Mascall Beds of Oregon. University of California Publications, Bulletin of the Department of Geology 5(3):67-70 [P. Holroyd/P. Holroyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 234344: authorized by Patricia Holroyd, entered by Patricia Holroyd on 01.04.2024

Creative Commons license: CC BY (attribution)