Also known as UO 2255

Where: Morrow County, Oregon (45.8° N, 119.7° W: paleocoordinates 45.8° N, 117.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hemphillian (10.3 - 4.9 Ma)

• "relatively thin stratigraphic unit"

• member-level stratigraphic resolution

Environment/lithology: terrestrial; unlithified, tuffaceous sandstone and tuff

Size class: macrofossils

Collection methods: surface (float),

• "collection on hands and knees" from a blowout

Primary reference: J. A. Shotwell. 1958. Inter-community relationships in Hemphillian (mid-Pliocene) mammals. Ecology 39(2):271-282 [J. Alroy/J. Alroy/W. Clyde]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 18833: authorized by John Alroy, entered by John Alroy on 27.09.1993

Creative Commons license: CC BY (attribution)