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, 4.5 to 7.5 m (15-25 ft) below top of Suplee Formation (Imlay, 1968)
Environment/lithology: marine; gray limestone and calcareous sandstone
Size classes: macrofossils, mesofossils
Collected by R.W. Imlay in 1961; reposited in the USNM
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 139736: authorized by George Stanley, entered by Hannah Shepherd on 16.02.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Vaugonia oregonensis Poulton 1979 clam |