USGS Mesozoic loc. 3002 (Jurassic of the United States)

Also known as 10521

Where: Alaska (60.2° N, 152.7° W: paleocoordinates 28.9° N, 84.4° W)

• coordinate based on nearby landmark

When: Cynthia Falls Sandstone Formation (Tuxedni Group), Bajocian (170.3 - 168.3 Ma)

Environment/lithology: marine; limestone and conglomerate

• From Martin (1926): Limestone conglomerate with clavellate and undulate Trigonias, etc. (lots 3002 and 10521) 1 ft

Size classes: macrofossils, mesofossils, microfossils

Preservation: cast, mold/impression

Collected by T.W. Stanton; F.H. Moffit in 1904; 1920

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 139473: authorized by George Stanley, entered by Hannah Shepherd on 12.02.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Trigoniida - Myophorelloidae
Myophorella argo Crickmay 1930 clam
USNM 219879 from USGS 10521, others from 3002