USGS Mesozoic 19757, Wide Bay (Jurassic of the United States)

Where: Alaska (57.4° N, 156.4° W: paleocoordinates 24.4° N, 85.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Kialagvik Formation, Late/Upper Aalenian (175.6 - 171.6 Ma)

• 975 to 800 feet below top of Kialagvik formation

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Preservation: mold/impression

Reposited in the USNM

Primary reference: B. Kummel. 1954. Jurassic nautiloids from western North America. Journal of Paleontology 28:320-324 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 180720: authorized by Matthew Clapham, entered by Matthew Clapham on 29.07.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

 Nautilida - Cenoceratidae
"Bisiphytes (Cenoceras) imlayi" = Cenoceras imlayi
"Bisiphytes (Cenoceras) imlayi" = Cenoceras imlayi Kummel 1954 nautiloid