UCMP 1013, West end of Bear Cove (Triassic of the United States)

Where: Shasta County, 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

Collected in 1905; reposited in the UCMP

Primary reference: E. M. Wemple. 1906. New Cestraciont teeth from the west-American Triassic. University of California Publications, Bulletin of the Department of Geology 5(4):71-73 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 136682: authorized by Matthew Clapham, entered by Matthew Clapham on 02.12.2012, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Hybodontiformes - Hybodontidae
Hybodus shastensis n. sp. Wemple 1906 elasmobranch
 Hybodontiformes - Acrodontidae
Acrodus wempliae n. sp.1 Jordan 1907 elasmobranch
Reptilia
 Thalattosauria -
Thalattosaurus alexandrae n. gen. n. sp.2 Merriam 1904 diapsid
UCMP 9085
Nectosaurus halius2 Merriam 1905 diapsid
UCMP 137371