Also known as Loc. #11; 49ACh36

Where: North Slope County, Alaska (68.7° N, 163.1° W: paleocoordinates 76.6° N, 32.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Okpikruak Formation, Valanginian (139.8 - 132.9 Ma)

• Valanginian in age. Upper part of Torok or Kukpowruk Formation

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified shale and siltstone

Size class: macrofossils

Reposited in the USGS

Collection methods: quarrying,

• Collections reposited in USGS and USNM collections. Collected by R.M. Chapman, 1949

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 44306: authorized by Austin Hendy, entered by Austin Hendy on 08.09.2004

Creative Commons license: CC BY (attribution)