Where: Alaska (57.3° N, 156.5° W: paleocoordinates 24.4° N, 85.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Erycitoides howelli ammonoid zone, Kialagvik Formation, Concavum (175.6 - 171.6 Ma)

• Upper E. howelli Zone.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Reposited in the CAS

Primary reference: G. E. G. Westermann. 1969. The ammonite fauna of the Kialagvik Formation at Wide Bay, Alaska Peninsula. Part II. Sonninia sowerbyi zone (Bajocian). Bulletins of American Paleontology 57:1-226 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 175653: authorized by Matthew Clapham, entered by Matthew Clapham on 24.12.2015

Creative Commons license: CC BY (attribution)