Northeast of Barrel Spring (GSC loc. 105371) (Cambrian of the United States)

Where: Nevada (37.5° N, 117.5° W: paleocoordinates 2.5° S, 96.8° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Montenegro Member (Campito Formation), Waucoban (538.8 - 509.0 Ma)

• "Nevadella" Zone, "near the base of the Montenegro Member"

• bed-level stratigraphic resolution

Environment/lithology: marine; argillaceous siltstone

• "a thin interval located one or two meters above the top of" the "3-m-thick, white, fine-grained quartzite unit"; "matrix surroung the 1f fossils... consists of non-limey, argillaceous siltstone"

Size class: macrofossils

Preservation: mold/impression

Reposited in the USNM

Primary reference: W. H. Fritz. 1995. Esmeraldina rowei and associated Lower Cambrian trilobites (1f fauna) at the base of Walcott's Waucoban Series, southern Great Basin, U.S.A. Journal of Paleontology 69(4):708-723 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 69468: authorized by John Alroy, entered by John Alroy on 26.02.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Redlichiida -
Nevadia weeksi
Nevadia weeksi Walcott 1908 trilobite