USGS loc. 3146-CO, Grotto Canyon, Panamint Mountains (Cambrian of the United States)

Also known as Hunt and Mabey loc. F-71

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)

• "15 feet above base 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 226279: 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
 Ptychopariida - Elviniidae
Dunderbergia variagranula
Dunderbergia variagranula Palmer 1954 trilobite
 Olenida - Pterocephaliidae
Strigambitus utahensis
Strigambitus utahensis Resser 1942 trilobite
Artiopoda
 Agnostida - Agnostidae
Homagnostus sp.
Homagnostus sp. Howell 1935