USGS 24469 - Kukpowruk River, North Slope (Cretaceous of the United States)

Also known as Loc. #3; 49ACh115

Where: North Slope County, Alaska (69.3° N, 162.6° W: paleocoordinates 80.0° N, 92.0° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Kukpowruk Formation, Albian (113.0 - 100.5 Ma)

• Middle Albian in age. About 800 ft above base.

• bed-level stratigraphic resolution

Environment/lithology: coastal; siltstone

• Shallow water, siliciclastic paleoenvironment
• 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 44327: authorized by Austin Hendy, entered by Austin Hendy on 08.09.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive.
Echinoidea
  -
Echinoidea indet. Leske 1778 sea urchin
Ophiuroidea
  -
Ophiuroidea indet. Gray 1840 brittle star
Bivalvia
 Pectinida - Oxytomidae
Oxytoma sp. Meek and Hayden 1865 scallop
 Pectinida - Entoliidae
Entolium utukokense n. sp. Imlay 1961 scallop
 Cardiida - Tancrediidae
Tancredia sp. Lycett 1850 clam
 Cardiida - Veneridae
? Flaventia kukpowrukensis n. sp. Imlay 1961 venus clam
 Cardiida - Arcticidae
? Arctica sp. Schumacher 1817 clam
 Hiatellida - Hiatellidae
"? Panope kissoumi" = Panopea
"? Panope kissoumi" = Panopea clam