Where: Alaska (57.4° N, 156.5° W: paleocoordinates 21.7° N, 83.9° W)

• coordinate based on nearby landmark

When: Kialagvik Formation, Toarcian (182.7 - 174.1 Ma)

• Toarcian, Hammatoceras beds, Kialagvik Formation

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

Collected by L.B. Kellum in 1944

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 139541: authorized by George Stanley, entered by Hannah Shepherd on 13.02.2013

Creative Commons license: CC BY (attribution)