USNM 42021, Saline Range (Cambrian of the United States)

Where: Inyo County, California (37.0° N, 117.8° W: paleocoordinates 0.7° S, 94.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Oryctocephalus indicus trilobite zone, Monola Formation, Delamaran (511.2 - 506.5 Ma)

• 15 to 20m above base of Monola Fm; Oryctocephalus indicus Biozone

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; black, gray shale

• 5-m-thick, greyish black shale

Size class: macrofossils

Preservation: mold/impression

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 69513: authorized by Wolfgang Kiessling, entered by Benjamin Brenneis on 27.02.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Ptychopariida - Ptychopariidae
Onchocephalites claytonensis, Syspacephalus variosus
Onchocephalites claytonensis Sundberg and McCollum 2003 trilobite
total of 100 specimens from 6 USNM Saline Range loc.
Syspacephalus variosus Sundberg and McCollum 2003 trilobite
 Corynexochida - Oryctocephalidae
Oryctocephalus indicus
Oryctocephalus indicus Reed 1910 trilobite
several specimens from 3 USNM Saline Range loc.