USGS D2245-CO (Ordovician of the United States)

Also known as 1-51-10J

Where: Esmeralda County, Nevada (38.0° N, 118.0° W: paleocoordinates 3.8° S, 85.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Tetragraptus approximatus graptolite zone, Palmetto Formation, Canadian (485.4 - 457.3 Ma)

Environment/lithology: marine; black, gray, green, cherty/siliceous 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 203995: authorized by Jonathan Marcot, entered by Jonathan Marcot on 29.08.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Malacostraca
 Archaeostraca - Caryocarididae
Caryocaris sp. Salter 1863
Pterobranchia
 Graptoloidea - Phyllograptidae
"Tetragraptus approximatus" = Paratetragraptus approximatus
"Tetragraptus approximatus" = Paratetragraptus approximatus Nicholson 1873 graptolite
 Graptoloidea - Dichograptidae
Dichograptidae indet. Lapworth 1873 graptolite
"Dichograptid stipes"