USGS loc. 3144-CO, Grotto Canyon, Panamint Mountains (Cambrian of the United States)

Also known as Hunt and Mabey loc. F-69

Where: Inyo County, California (36.6° N, 117.1° W: paleocoordinates 2.7° S, 90.3° W)

• coordinate estimated from map

When: Nopah Formation, Furongian (497.0 - 485.4 Ma)

• "top of unit"

Environment/lithology: marine; brown, green shale and nodular, brown limestone

• Top. Thick-bedded dolomite of Nopah Formation. Thin bedded limestone and tan shale. Shale mostly in laminae separating thin beds of limestone, but some shale beds are 10 ft thick. Basal 15 ft is brown limestone; higher ones blue gray, in beds 1 in to 2 ft thick. Nodular limestone and shale 40ft above base

Size class: macrofossils

Primary reference: C. B. Hunt and D. R. Mabey. 1966. Stratigraphy and structure, Death Valley, California. United States Geological Survey Professional Paper 494-A:A1-A162 [J. Marcot/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 226277: authorized by Jonathan Marcot, entered by Jonathan Marcot on 29.06.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Corynexochida - Cheilocephalidae
Cheilocephalus ? brachyops
Cheilocephalus ? brachyops Palmer 1965 trilobite
 Olenida - Dokimokephalidae
Apachia sp.
Apachia sp. Frederickson 1949 trilobite
 Olenida - Pterocephaliidae
Sigmocheilus sp.
Sigmocheilus sp. Palmer 1960 trilobite
 Ptychopariida - Elviniidae
Elburgia quinnensis
Elburgia quinnensis Resser 1942 trilobite