Where: Meade County, South Dakota (44.4° N, 103.7° W: paleocoordinates 11.6° S, 82.9° W)
• local area-level geographic resolution
When: Ellipsocephaloides zone, Deadwood Formation, Franconian (501.0 - 488.3 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 is approximate.
• group of beds-level stratigraphic resolution
Environment/lithology: transition zone or lower shoreface; lithified shale and lithified siltstone
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] more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 9750: authorized by Mark Patzkowsky, entered by Phil Borkow on 18.01.2001