Where: Clatsop County, Oregon (46.2° N, 123.8° W: paleocoordinates 46.0° N, 117.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Astoria Formation, Burdigalian (20.4 - 16.0 Ma)

• Probably from the lower part of the Astoria Formation

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified shale

Size class: macrofossils

Collected by J.K. Townsend in 1834-37; reposited in the USNM

Primary reference: E. J. Moore. 1963. Miocene marine mollusks from the Astoria Formation in Oregon. United States Geological Survey Professional Paper 419 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 180448: authorized by Matthew Clapham, entered by Matthew Clapham on 16.07.2016

Creative Commons license: CC BY (attribution)