Where: Alaska (59.0° N, 153.8° W)
• Paleocoordinates: 57.9° N, 77.8° W (Wright 2013)
• coordinate based on nearby landmark
When: Upper Naknek Formation, Oxfordian to Oxfordian (161.5 - 149.2 Ma)
Environment/lithology: marine; lithology not reported
Size classes: macrofossils, mesofossils
Collected by T.W. Stanton, G.C. Martin, L. Martin in 1904; 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 139476: authorized by George Stanley, entered by Hannah Shepherd on 12.02.2013
Creative Commons license: CC0 (CC0)
Taxonomic list
Bivalvia | |
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