Where: Wasco County, Oregon (44.9° N, 121.3° W: paleocoordinates 44.7° N, 115.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: John Day Formation, Early/Lower Hemingfordian (20.4 - 16.0 Ma)

• said to be early Hemingfordian based on B. submilleri

•from "approximately one meter above the lapilli tuff, near the top of the fossiliferous interval"

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; tuffaceous, brown sandstone and siltstone

Size class: macrofossils

Collection methods: surface (float),

• "Most of the fossils were discovered as float"

Primary reference: M. O. Woodburne and P. T. Robinson. 1977. A new late Hemingfordian mammal fauna from the John Day Formation, Oregon, and its stratigraphic implications. Journal of Paleontology 51(4):750-757 [J. Alroy/J. Alroy/J. Head]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 18015: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)