Also known as Loc. #23; 50ASa251
Where: North Slope County, Alaska (68.6° N, 161.1° W: paleocoordinates 76.2° N, 35.7° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Okipruak Formation, Valanginian (139.8 - 132.9 Ma)
• About 75 to 100 ft above base of Okipruak Formation. Valanginian in age.
• bed-level stratigraphic resolution
Environment/lithology: coastal; lithified sandstone and conglomerate
Size class: macrofossils
Reposited in the USNM
Collection methods: quarrying,
• Collected by E.G. Sable, 1950. Collections held in USGS and USNM.
Primary reference: R. W. Imlay. 1961. Characteristic lower Cretaceous megafossils from northern Alaska. United States Geological Survey Professional Paper 335 [A. Miller/A. Hendy/M. Clapham]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 44386: authorized by Austin Hendy, entered by Austin Hendy on 09.09.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Aucella crassicollis" = Buchia crassicollis
"Aucella crassicollis" = Buchia crassicollis Keyserling 1846 scallop |