USGS Mesozoic loc. 20765 (Jurassic of the United States)

Where: Alaska (59.7° N, 153.4° W: paleocoordinates 31.5° N, 86.9° W)

• coordinate based on nearby landmark

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

• Callovian, Chinitna Formation

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils, microfossils

Collected by C.E. Kirschner in 1946; 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 139585: authorized by George Stanley, entered by Hannah Shepherd on 14.02.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Trigoniida - Myophorelloidae
Vaugonia doroschini Eichwald 1871 clam
Hypotype USNM 219916
Myophorella devexa Eichwald 1871 clam
Myophorella aff. dawsoni Whiteaves 1878 clam