ammonites
USNM 42010, Saline Range, California (Cambrian of the United States)

Where: Inyo County, California (37.0° N, 117.8° W: paleocoordinates 0.6° S, 93.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Monola Formation, Middle Cambrian (513.0 - 501.0 Ma)

• basal 15m of Monola Fm; Amecephalus arrojosensis Biozone

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; argillaceous, cherty/siliceous shale and limestone

• "several thin bioclastic limestones and argillites within the basal 15m" of the Monola Fm.

Reposited in the UNSM

Primary reference: F. A. Sundberg and L.B. McCollum. 2003. Early and Mid Cambrian Trilobites from the Outer-shelf Deposits of Nevada and California, USA. Palaeontology 46(5):945-986 [W. Kiessling/B. Brenneis] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 69499: authorized by Wolfgang Kiessling, entered by Benjamin Brenneis on 27.02.2007