Deadwood x34 [Deadwood Fm] (Cambrian of the United States)

Also known as D x34

Where: Deadwood County, South Dakota (44.4° N, 103.7° W: paleocoordinates 11.8° S, 82.2° W)

• small collection-level geographic resolution

When: Crepicephalus trilobite zone, lower Member (Deadwood Formation), Dresbachian (497.0 - 485.4 Ma)

• AGE: Dresbachian; refined by A. Hendy (6/2009) on the basis of biostratigraphic data (= Crepicephalus zone).

Environment/lithology: foreshore; limestone and sandstone

Collection methods: bulk,

Primary reference: J. H. Stitt and P. J. Perfetta. 2000. Trilobites, Biostratigraphy, and Lithostratigraphy of the Crepicephalus and Aphelaspis zones, Lower Deadwood formation (Marjuman and Steptoean Stages, Upper Cambrian), Black Hills, South Dakota. Journal of Paleontology 74(2):199-223 [M. Patzkowsky/K. Straub/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 7403: authorized by Mark Patzkowsky, entered by Kyle Straub on 29.05.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
  - Llanoaspididae
Arcuolimbus convexus Palmer 1954 trilobite
 Ptychopariida - Kingstoniidae
 Ptychopariida - Tricrepicephalidae
 Ptychopariida - Menomoniidae
 Ptychopariida - Crepicephalidae
Coosina ariston Walcott 1916 trilobite
Coosia alethes Walcott 1916 trilobite
 Ptychopariida - Marjumiidae
Coosella sp. Lochman 1936 trilobite
Coosella perplexa Palmer 1954 trilobite