Tuffaceous sandstone bluffs along the Willapa River N of Holcomb (Oligocene of the United States)

Where: Pacific County, Washington (46.6° N, 123.6° W: paleocoordinates 46.2° N, 113.9° W)

When: Oligocene (33.9 - 23.0 Ma)

Environment/lithology: marine; sandstone and tuff

• "Tuffaceous sandstone bluffs"

Size classes: macrofossils, mesofossils

• 2 specimens, a chela and a portion of a large finger (M. alaskensis); one specimen, holotype, showing the dorsal surface of the carapace incompletely and a portion of the right ventral surface (M. willapensis);

Collected by Harold Hannibal

• 11 specimens (P. vulgaris), Stanford University (N. Pac. 253); M. willapensis holotype in Stanford University;

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 139466: authorized by Carrie Schweitzer, entered by Samantha Yost on 12.02.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Decapoda -
Macroacaena willapensis Rathbun 1926 crab
 Decapoda - Xanthidae
Pilodius vulgaris Glaessner 1928 stone crab
 Decapoda - Macropipidae
Megokkos alaskensis Rathbun 1926 crab