Where: Grant County, Oregon (44.1° N, 119.3° W: paleocoordinates 28.4° N, 56.0° W)

• coordinate based on nearby landmark

When: Suplee Formation, Late/Upper Pliensbachian (189.6 - 183.0 Ma)

• Upper Pliensbachian

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils, microfossils

Collected by R.W. Imlay, W.R. Dickinson; T. P. Poulton in 1957; 1972

Primary reference: T. P. Poulton. 1979. Jurassic Trigoniid Bivalves from Canada and Western United States of America. Geological Survey of Canada Bulletin 282 [G. Stanley/H. Shepherd/H. Shepherd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 139226: authorized by George Stanley, entered by Hannah Shepherd on 09.02.2013

Creative Commons license: CC BY (attribution)