Where: Alaska (61.9° N, 147.7° W: paleocoordinates 17.4° N, 76.5° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Carlottense ammonoid zone, Talkeetna Formation, Spinatum (189.6 - 183.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified siltstone

Size class: macrofossils

Collection methods: Repository: UMPC = University of Montana Paleontology Center

Primary reference: A. H. Caruthers and P. L. Smith. 2012. Pliensbachian ammonoids from the Talkeetna Mountains (Peninsular Terrane) of Southern Alaska. Revue de Paléobiologie, Genève, vol. spéc 11:365-378 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 132732: authorized by Matthew Clapham, entered by Matthew Clapham on 25.08.2012

Creative Commons license: CC BY (attribution)