UCMP 1015, North fork of Squaw Creek (Triassic of the United States)

Where: California (40.8° N, 122.2° W: paleocoordinates 13.4° N, 53.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hosselkus Formation, Tuvalian (232.0 - 221.5 Ma)

• Upper Triassic, Tropites beds

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, black limestone

Size class: macrofossils

Reposited in the UCMP

Primary reference: D. S. Jordan. 1907. The fossil fishes of California, with supplementary notes on other species of extinct fishes. University of California Publications, Bulletin of the Department of Geology 5(7):95-144 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 136683: authorized by Matthew Clapham, entered by Matthew Clapham on 02.12.2012, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Thalattosauria -
Nectosaurus sp. Merriam 1905 diapsid
Nectosaurus halius Merriam 1905 diapsid
Chondrichthyes
 Hybodontiformes - Acrodontidae
Acrodus wempliae Jordan 1907 elasmobranch