Where: Wasco County, Oregon (44.9° N, 121.3° W: paleocoordinates 44.6° N, 112.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: John Day Formation, late Late Arikareean (29.5 - 18.5 Ma)

• shown at an exact meter level below the "lapilli-tuff"

•said to be "latest Arikareean"

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; tuffaceous, brown sandstone

Size class: macrofossils

Collection methods: surface (float),

• "fossils occur as float"

Primary reference: L. Dingus. 1990. Systematics, stratigraphy, and chronology for mammalian fossils (Late Arikareean to Hemingfordian) from the uppermost John Day Formation, Warm Springs, Oregon. PaleoBios 12(47/48):1-24 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 18014: authorized by John Alroy, entered by John Alroy on 30.04.1994

Creative Commons license: CC BY (attribution)