USGS 3485-CO (Cambrian to of the United States)

Also known as 1-32-5

Where: Esmeralda County, Nevada (37.9° N, 117.9° W: paleocoordinates 1.7° S, 96.1° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Emigrant Formation, Early/Lower Cambrian to Early/Lower Cambrian (538.8 - 497.0 Ma)

• "Questionably Middle Cambrian. Could be unusual Lower Cambrian fauna"

Environment/lithology: marine; fine-grained, gray, green shale and gray limestone

Size class: mesofossils

Primary reference: P. T. Robinson, J. H. Stewart, R. J. Moiola and J. P. Albers. 1976. Geologic map of the Rhyolite Ridge quadrangle, Esmeralda County, Nevada. [J. Marcot/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 204003: authorized by Jonathan Marcot, entered by Jonathan Marcot on 29.08.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Corynexochida - Dorypygidae
Dorypygidae indet. Kobayashi 1935 trilobite
"Indet. dorypygiid trilobite"
Lingulata
 Acrotretida - Acrotretidae
Acrotretidae indet. Schuchert 1893
"Pegmatretid brachiopods"
Coeloscleritophora
 Chancelloriida - Chancelloriidae
Chancelloria sp. Walcott 1920