Where: Shasta County, California (40.5° N, 122.6° W: paleocoordinates 40.6° N, 76.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Budden Canyon Formation, Early/Lower Albian (112.0 - 109.0 Ma)

• "Shasta Group" of Gabb. Early Albian age based on co-occurrence of ammonoid Diptychoceras laevis. In the Perrin Zone of the Horsetown Group, according to Anderson (1938), later placed in the Ono Formation by Murphy (1956).

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, gray claystone

Size class: macrofossils

Preservation: mold/impression

Collected by Mathewson; reposited in the ANSP

Primary reference: W. M. Gabb. 1866. Section I. Tertiary Invertebrate Fossils. Part I. Description of New Species. Palaeontology of California, Volume II, Cretaceous and Tertiary Fossils 1-38 [M. Clapham/M. Clapham/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 122334: authorized by Matthew Clapham, entered by Jered Karr on 21.12.2011, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)