Conglomerate sea cliffs at Koitlah Point, west of Neah Bay (Oligocene of the United States)

Where: Washington (48.4° N, 124.6° W: paleocoordinates 48.1° N, 113.8° W)

When: Early/Lower Oligocene (33.9 - 28.4 Ma)

Environment/lithology: marine; conglomerate

Size classes: macrofossils, mesofossils

• One specimen (P. hannibalanus = B. washingtoniana), paratype a, showing half the carapace and part of the chelipeds; another 3 specimens, male, without appendages. R. americana: two specimens showing the greater part of the dorsal surface and certain portions of the ventral surface and fragments of appendages.

Collected by H. Hannibal

• Stanford University (N. Pac. 167)

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 139012: authorized by Carrie Schweitzer, entered by Samantha Yost on 07.02.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Malacostraca
 Decapoda - Mathildellidae
Branchioplax washingtoniana Rathbun 1916 crab
= Pilumnoplax hannibalanus
 Decapoda - Raninidae
Ranina americana Withers 1924 crab