South side of Rich's Passage, Puget Sound (Oligocene of the United States)

Where: Washington (47.6° N, 122.5° W: paleocoordinates 47.2° N, 113.6° W)

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

• "basal conglomerate of upper Oligocene, or Blakeley Formation"

Environment/lithology: marine; conglomerate

• "basal conglomerate of upper Oligocene"

Size classes: macrofossils, mesofossils

• One left chela [C. twinensis];

Collection methods: University of California (T. 42), [C. twinensis];

Primary reference: M. J. Rathbun. 1926. The Fossil Stalk-Eyed Crustacea of the Pacific Slope of North America. Smithsonian Institution United States National Museum [C. Schweitzer/S. Yost/S. Yost]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 140250: authorized by Carrie Schweitzer, entered by Samantha Yost on 06.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Malacostraca
 Decapoda - Callianassidae
Callianassa twinensis Rathbun 1926 decapod