Where: Oregon (44.6° N, 124.0° W: paleocoordinates 44.2° N, 114.2° W)

When: Oligocene (33.9 - 23.0 Ma)

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

• One specimen embedded in nodule (M. triangulum)

Preservation: concretion

Collection methods: University of Oregon

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 139860: authorized by Carrie Schweitzer, entered by Samantha Yost on 19.02.2013

Creative Commons license: CC BY (attribution)