Also known as UCMP V-4947

Where: Baker County, Oregon (44.8° N, 117.6° W: paleocoordinates 45.4° N, 115.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Middle Miocene to Middle Miocene (16.0 - 5.3 Ma)

Environment/lithology: fluvial; poorly lithified, medium-grained, ferruginous, tuffaceous sandstone

Size class: macrofossils

Reposited in the UCMP

Primary reference: T. Downs. 1952. A new mastodont from the Miocene of Oregon. University of California Publications in Geological Sciences 29(1):1-20 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 19115: authorized by John Alroy, entered by John Alroy on 15.05.2002

Creative Commons license: CC BY (attribution)