USGS Mesozoic 12408, Wide Bay (Jurassic of the United States)

Where: Alaska (57.3° N, 156.7° W: paleocoordinates 30.6° N, 90.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Shelikof Formation, Callovian (166.1 - 163.5 Ma)

• Shelikof formation, lower member.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collected by W.R. Smith in 1924; reposited in the USNM

Primary reference: R. W. Imlay. 1953. Callovian (Jurassic) ammonites from the United States and Alaska Part 2. Alaska Peninsula and Cook Inlet regions. United States Geological Survey Professional Paper 249-B:41-108 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 158955: authorized by Matthew Clapham, entered by Matthew Clapham on 23.07.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ammonitida - Cardioceratidae
Cadoceras kialagvikense n. sp. Imlay 1953 ammonite
Cadoceras bathomphalum n. sp. Imlay 1953 ammonite