M-6, Marble Mountains (Cambrian of the United States)

Where: San Bernardino County, California (34.5° N, 115.5° W: paleocoordinates 2.2° S, 98.4° W)

When: Chambless Formation, Dyeran (515.3 - 511.2 Ma)

• Fauna from limy shale horizon in the Lower Cambrian algal limestone. About 25 feet above the base.

Environment/lithology: marine; lithified, calcareous shale and lithified, stromatolitic limestone

• Fauna from limy shale horizon in the Lower Cambrian algal limestone.

Size classes: macrofossils, mesofossils

Preservation: cast, mold/impression

Collected by J. C. Hazzard in Summer, 1930

• In the course of the investigation fossils were collected from the Lower and Middle Cambrian rocks in the area immediately north of Cadiz, California, and from the Lower Cambrian formations exposed at the west base of the Providence Mountains east of Kelso, about 30 miles north of Cadiz. These collections were studied by Dr. Colin Crickmay, University of Illinois, who has written the report on the paleontology.

Primary reference: J. C. Hazzard and C. H. Crickmay. 1933. Notes on the Cambrian rocks of the eastern Mohave Desert, California . University of California Publications Bulletin of the Department of Geological Sciences 23(2):57-80 [J. Marcot/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 219696: authorized by Jonathan Marcot, entered by Jonathan Marcot on 18.04.2021

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Redlichiida - Olenellidae
Mesonacis sp. Walcott 1885 trilobite
Paterinata
 Paterinida - Paterinidae
"Micromitra cf. prospectensis" = Paterina prospectensis
"Micromitra cf. prospectensis" = Paterina prospectensis Walcott 1884