Where: Alaska (62.1° N, 147.4° W: paleocoordinates 31.8° N, 82.5° W)

• coordinate based on nearby landmark

When: Chinitna Formation, Callovian (166.1 - 163.5 Ma)

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

Collected by R.D. Hoare in 1952; 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 139590: authorized by George Stanley, entered by Hannah Shepherd on 14.02.2013

Creative Commons license: CC BY (attribution)