Locality ICS-1173 (Cambrian of the United States)

Also known as Locality ICS-1173, Pioche Form., Lincoln County, Nevada - Palmer 1998

Where: Lincoln County, Nevada (37.6° N, 114.8° W: paleocoordinates 3.3° S, 95.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bolbolenellus euryparia trilobite zone, C-Shale Member (Pioche Shale Formation), Lenian (516.0 - 510.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

• nodular limestone

Size class: macrofossils

Preservation: cast, replaced with silica

Collection methods: chemical,

• Includes all trilobites and supplementary information on brachiopods used to prove lack of significant erosional relief. Specimens are from insoluble residue of limestone nodules.

Primary reference: A. R. Palmer. 1998. Terminal Early Cambrian extinction of the Olenellina: documentation from the Pioche Formation, Nevada. Journal of Paleontology 72(4):650-672 [M. Patzkowsky/P. Borkow]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 9821: authorized by Mark Patzkowsky, entered by Phil Borkow on 23.01.2001, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

 Lingulida - Acrothelidae
Eothele sp. Rowell 1980
 Corynexochida - Oryctocephalidae
Oryctocephalites palmeri Sundberg and McCollum 1997 trilobite
 Redlichiida - Biceratopsidae
Bolbolenellus brevispinus n. sp. Palmer 1998 trilobite
over 40 cephala and 11 hypostomes
Nephrolenellus geniculatus Palmer 1998 trilobite
40 silisified holaspid cephala and over 100 meraspid cephala
 Redlichiida - Olenellidae
Olenellus chiefensis n. sp. Palmer 1998 trilobite
8 holaspid cephala and 6 late meraspid cephala
Olenellus gilberti White 1874 trilobite
250 silisified specimens
Olenellus fowleri n. sp. Palmer 1998 trilobite
5 cephala