Where: Wahkiakum County, Washington (46.3° N, 123.7° W: paleocoordinates 46.0° N, 114.7° W)

When: Late/Upper Oligocene (28.4 - 23.0 Ma)

• "upper (?) Oligocene" as quoted in reference

Environment/lithology: marine; sandy shale

Size classes: macrofossils, mesofossils

• One right chela, probably of a female (paratype d), [C. twinensis];

Collection methods: Stanford University (N. Pac. 274), [C. twinensis];

Primary reference: M. J. Rathbun. 1926. The fossil stalk-eyed Crustacea of the Pacific slope of North America. United States National Museum Bulletin 138:1-155 [C. Schweitzer/S. Yost/M. Uhen]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 140251: authorized by Carrie Schweitzer, entered by Samantha Yost on 06.03.2013

Creative Commons license: CC BY (attribution)