Grapevine Mountains (USGS 4141-CO) (Cambrian of the United States)

Where: California (36.8° N, 117.1° W)

• Paleocoordinates: 32.4° N, 137.0° W (Wright 2013)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Albertella trilobite zone, Jangle Limestone Member (Carrara Formation), Delamaran (509.7 - 505.3 Ma)

• A slightly more diverse single collection from the middle of the Jangle Limestone Member in the Grapevine Mountains contains a fauna with affinities to both the Zacanthoidid and Albertella-Mexicella Zonules of the Albertella Zone.

• member-level stratigraphic resolution

Environment/lithology: shallow subtidal; lime mudstone and shelly/skeletal wackestone

• The lithologies of the Jangle Limestone Member include

•lime mudstones, trilobite- and echinodermfragment

•wackestones, packstones, and grainstones, oolite,

•fenestral-fabric and laminated limestones.

Size classes: macrofossils, mesofossils, microfossils

Primary reference: A. R. Palmer and R. B. Halley. 1979. Physical Stratigraphy and Trilobite Biostratigraphy of the Carrara Formation (Lower and Middle Cambrian) in the Southern Great Basin. United States Geological Survey Professional Paper 1047:1-131 [W. Kiessling/M. Krause/J. Ju]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 149619: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 16.08.2013

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Ptychopariida -
Mexicella grandoculus n. sp.
Mexicella grandoculus n. sp. Palmer and Halley 1979 trilobite
 Ptychopariida - Ptychopariidae
Volocephalina connexa, Nyella ? clinolimbata
Volocephalina connexa Palmer and Halley 1979 trilobite
Nyella ? clinolimbata Fritz 1968 trilobite
 Corynexochida - Zacanthoididae
Mexicaspis radiatus n. sp., Ptarmiganoides hexacantha n. sp.
Mexicaspis radiatus n. sp. Palmer and Halley 1979 trilobite
Ptarmiganoides hexacantha n. sp. Palmer and Halley 1979 trilobite