Where: Washington (48.1° N, 122.8° W: paleocoordinates 47.8° N, 111.9° W)

When: Clallam Formation, Rupelian (33.9 - 28.1 Ma)

• Clallam formation, lower Oligocene series, according to B.L. Clark

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary siliciclastic sediments

Size class: macrofossils

Collected by Thomas T. Minor in 1873; reposited in the YPM

Primary reference: M. J. Rathbun. 1916. Description of a new genus and species of fossil crab from Port Townsend, Washington. The American Journal of Science, Fourth Series 41:344-346 [C. Schweitzer/S. Yost/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 139017: authorized by Carrie Schweitzer, entered by Samantha Yost on 07.02.2013

Creative Commons license: CC BY (attribution)