Where: Alaska (62.1° N, 147.6° W: paleocoordinates 31.2° N, 82.1° W)

• coordinate based on nearby landmark

When: middle Member (Bowser Formation), Bathonian to Bathonian (168.3 - 163.5 Ma)

• Bathonian or Callovian, equivalent of middle member of Bowser Formation

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

Collected by E.R. Orwig in 1957; 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 139592: authorized by George Stanley, entered by Hannah Shepherd on 14.02.2013

Creative Commons license: CC BY (attribution)