Where: Alaska (62.0° N, 147.3° W: paleocoordinates 29.0° N, 80.8° W)

• coordinate based on nearby landmark

When: Bajocian (170.3 - 168.3 Ma)

• Bajocian according to Stanton (in Martin, 1926, p. 226)

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

Collected by T. Chapin in 1914

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 139480: authorized by George Stanley, entered by Hannah Shepherd on 12.02.2013

Creative Commons license: CC BY (attribution)