Where: Alaska (61.7° N, 141.8° W: paleocoordinates 2.5° N, 67.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Julian (235.0 - 232.0 Ma)

• Presumably early Carnian if identification of Sirenites is correct

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

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 144375: authorized by Matthew Clapham, entered by Matthew Clapham on 06.05.2013

Creative Commons license: CC BY (attribution)