Grapevine Mountains (USGS 7184-CO) (Cambrian of the United States)

Where: California (36.8° N, 117.1° W: paleocoordinates 1.3° S, 96.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Olenellus zone, Pyramid Shale Member (Carrara Formation), Dyeran (515.3 - 511.2 Ma)

• Aside from those occurrences only a single specimen questionably identified as Mexicella? stator (Walcott) was found on a float piece from the middle part of this member in the Titanothere Canyon section in the Grapevine Mountains.

• member-level stratigraphic resolution

Environment/lithology: coastal; green shale and brown siltstone

• The member is primarily a green shale interbedded

•with brown and maroon siltstone and shale with minor

•amounts of quartzite and limestone.

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 151380: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 30.09.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Redlichiida - Olenellidae
Olenellus "sp. indet.1", Olenellus gilberti
Olenellus "sp. indet.1" Hall 1861 trilobite
Olenellus gilberti White 1874 trilobite
 Redlichiida - Biceratopsidae
"Olenellus multinodus" = Nephrolenellus multinodus
"Olenellus multinodus" = Nephrolenellus multinodus Palmer and Halley 1979 trilobite