BEC X 240, Deadwood Form., Black Hills, South Dakota - Stitt and Straatmann 1997 (Cambrian of the United States)

Where: Pennington County, South Dakota (44.2° N, 103.5° W: paleocoordinates 12.0° S, 82.3° W)

• local area-level geographic resolution

When: Illaenurus zone, Deadwood Formation, Trempealeauan (492.5 - 485.4 Ma)

• Collection numbers represent exact footage above the base of the section. The X in the collection name indicates that the sample was not collected in situ but had not moved very far, and the footage given is approximate.

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified sandstone

• The Black Hills is a domal basement uplift formed during the Laramide Orogeny.
• red, massive, cliff-forming, cross-bedded sandstone

Collection methods: Collected by Christina Lochman-Balk and her students. Only trilobites are included in the collection.

Primary reference: J. H. Stitt and W. M. Straatmann. 1997. Trilobites from the upper part of the Deadwood Formation (Upper Franconian and Trempealeauan stages, Upper Cambrain), Black Hills, South Dakota. Journal of Paleontology 71(1):86-102 [M. Patzkowsky/P. Borkow/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 9754: authorized by Mark Patzkowsky, entered by Phil Borkow on 18.01.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

• Abundances are lsited as cranidia-pygidia-librigenae-hypostomes (C-P-L-H), for polymeroid trilobites, cephala-pygidia (C-P) for agnostid trilobites, and number of valves for brachiopods.
Show authors, comments, and common names
Trilobita
 Asaphida - Dikelocephalidae
"Saukiella pyrene" = Prosaukia pyrene
"Saukiella pyrene" = Prosaukia pyrene Walcott 1913 trilobite
(9-3-0-1)