Shasta County area (Triassic of the United States)

Where: Shasta County, California (40.8° N, 122.2° W: paleocoordinates 11.4° N, 50.4° W)

• coordinate stated in text

• basin-level geographic resolution

When: Hosselkus Formation, Carnian (237.0 - 228.0 Ma)

• Sander et al. (2011) state that the type specimen of Shastasaurus pacificus is "late Carnian". Described as being from a "black Triassic limestone" (Merriam, 1895), likely to be Hosselkus Limestone.

• bed-level stratigraphic resolution

Environment/lithology: marine; black limestone

Size class: macrofossils

Primary reference: J. C. Merriam. 1895. On some Reptilian Remains from the Triassic of Northern California. American Journal of Science 50(295):55 [A. Dunhill/B. Allen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 196798: authorized by Alex Dunhill, entered by Bethany Allen on 08.10.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Ichthyosauria - Californosauridae
Californosaurus perrini n. sp. Merriam 1902 ichthyosaur
 Ichthyosauria - Shastasauridae
Shastasaurus pacificus n. gen. n. sp.
Shastasaurus pacificus n. gen. n. sp. Merriam 1895 ichthyosaur