Near Las Vegas (Cambrian of the United States)

Where: Clarks County, Nevada (39.6° N, 119.5° W: paleocoordinates 0.0° N, 92.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Olenellus zone, Pioche Formation, Dyeran (516.0 - 513.0 Ma)

• Was Atdabanian-Lenian

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone and shale

• 80% green micaceous shale and 20% brown fine-grained sandstone

Size class: mesofossils

Primary reference: P. D. Pack and H. B. Gayle. 1971. A new Olenellid trilobite, Biceratops nevadensis, from the Lower Cambrian near Las Vegas, Nevada. Journal of Paleontology 45(5):893-898 [M. Patzkowsky/P. Borkow/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 8665: authorized by Mark Patzkowsky, entered by Phil Borkow on 17.08.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Trilobita
 Redlichiida - Olenellidae
? Olenellus sp. Hall 1861 trilobite
Paedeumias sp. Walcott 1910 trilobite
Biceratops nevadensis Pack and Gayle 1971 trilobite
Biceratops nevadensis n. gen. n. sp. Pack and Gayle 1971 trilobite
"Fremontia sp." = Mesonacis Walcott 1885 trilobite
Hyolitha
 Hyolithida - Hyolithidae
Hyolithes sp. d'Eichwald 1840
Rhynchonellata
 Orthida - Bohemiellidae
? Wimanella sp. Walcott 1908
unclassified
  -
Annelida indet. Lamarck 1809