USGS Mesozoic loc. 19936 (Jurassic of the United States)

Where: Alaska (59.8° N, 153.3° W: paleocoordinates 28.8° N, 85.0° W)

• coordinate estimated from map

When: Gaikema Formation (Tuxedni Group), Bajocian (170.3 - 168.3 Ma)

Environment/lithology: marine; massive, conglomeratic sandstone and siltstone

• Sandstone, massive, locally conglomeratic; minor siltstone

Size classes: macrofossils, mesofossils

Collected by H. Wedow 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 139544: authorized by George Stanley, entered by Hannah Shepherd on 13.02.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Trigoniida - Myophorelloidae
Myophorella argo Crickmay 1930 clam