Where: Alaska (65.2° N, 141.7° W: paleocoordinates 43.6° N, 53.7° W)

• coordinate based on nearby landmark

When: Tuvalian to Tuvalian (232.0 - 215.6 Ma)

• "Upper Karnic or lower Noric age", at the junction of the Carnian and Norian

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, argillaceous limestone

Size class: macrofossils

Preservation: mold/impression

Reposited in the USNM

Primary reference: J. P. Smith. 1927. Upper Triassic marine invertebrate faunas of North America. United States Geological Survey Professional Paper 141:1-262 [D. Bottjer/C. Powers/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 33427: authorized by David Bottjer, entered by Catherine Powers on 29.07.2003

Creative Commons license: CC BY (attribution)