Unit 7 collection NC 257 (Cambrian of the United States)

Where: Utah (39.2° N, 113.3° W: paleocoordinates 5.5° S, 87.5° W)

• coordinate stated in text

When: Candland Shale Member (Orr Formation), Furongian (497.0 - 485.4 Ma)

• Big Horse Canyon (NC)

Environment/lithology: marine; lithified, brown, gray, silty limestone

• Calcarenite, medium-gray, weathers moderate brown, thin bedded, contains about 50% silt in thin bedded zones

Size class: macrofossils

Preservation: cast

Collection methods: Fossils were collected from the Candland Shale member of the Orr formation, unit 7 - NC 257, 257ft from base of NC formation on Big Horse Canyon

Primary reference: L. F. Hintze and A. R. Palmer. 1976. Upper Cambrian Orr Formation: Its Subdivisions and Correlatives in Western Utah. Geological Survey Bulletin 1405-G [M. Hopkins/S. Mahmood]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 156422: authorized by Melanie Hopkins, entered by Shaun Mahmood on 21.05.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Ptychopariida - Crepicephalidae
Crepicephalus sp.
Crepicephalus sp. Owen 1852 trilobite
 Ptychopariida - Kingstoniidae
Blountia sp.
Blountia sp. Walcott 1916 trilobite
 Ptychopariida - Marjumiidae
Coosella sp.
Coosella sp. Lochman 1936 trilobite
Artiopoda
 Agnostida - Diplagnostidae
"Pseudagnostina sp." = Pseudagnostus
"Pseudagnostina sp." = Pseudagnostus Jaekel 1909