East side Right Angle Canyon, UCMP V91170 (Cretaceous of the United States)

Where: Fresno County, California (36.5° N, 120.7° W: paleocoordinates 42.3° N, 96.6° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Moreno Formation (Great Valley Group), Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; shale

• poorly consolidated, gypsiferous shaly matrix

Size class: macrofossils

Reposited in the UCMP

Primary reference: J. Lindgren. 2007. First record of Halisaurus (Squamata: Mosasauridae) from the Pacific coast of North America. PaleoBios 27(2):40-47 [P. Holroyd/P. Holroyd]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 192042: authorized by Patricia Holroyd, entered by Patricia Holroyd on 04.03.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Squamata - Mosasauridae
Halisaurus sp. Marsh 1869 mosasaur
UCMP 137251