Lupine River (USGS Mes. loc. 22751) (Jurassic to of the United States)
Where: Alaska (68.8° N, 148.4° W: paleocoordinates 75.1° N, 53.0° W)
• small collection-level geographic resolution
When: Tiglukpuk Formation, Kimmeridgian to Kimmeridgian (157.3 - 145.0 Ma)
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified, silty siltstone and shale
• "[These sediments] were deposited in an eastward-trending trough about 150 mi wide...the trough was bounded on the S by a rising landmass from which most of the sediments were derived. It was bounded on the N by the Barrow Platform..."
[ergo, foreland basin]
• siltstone and silty shale as at 22750: [dark siltstone having a metallic blue luster, and fissile noncalcareous silty shale.]
Reposited in the USGS
Primary reference: R. W. Imlay. 1955. Characteristic Jurassic Mollusks from northern Alaska. United States Geological Survey Professional Paper 274-D:69-96 [J. Alroy/M. Sommers]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 5220: authorized by John Alroy, entered by Mike Sommers on 02.09.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Bivalvia | |
"Aucella mosquensis" = Buchia piochii, "Aucella rugosa" = Buchia rugosa
"Aucella mosquensis" = Buchia piochii Gabb 1864 scallop
"Aucella rugosa" = Buchia rugosa Fischer 1837 scallop | |