DB S1, Deadwood Form., Black Hills, South Dakota - Stitt and Straatmann 1997 (Cambrian of the United States)

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

• local area-level geographic resolution

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

• Sample could not be placed in a stratigraphic context and no footage is listed.

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface

• The Black Hills is a domal basement uplift formed during the Laramide Orogeny.

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 9763: authorized by Mark Patzkowsky, entered by Phil Borkow on 18.01.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

• Abundances are listed 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
unclassified
  -
Arcifimbrin pahasapaensis
Trilobita
 Corynexochida - Illaenidae
Illaenurus priscus
Illaenurus priscus trilobite
(5-0-0-0)
 Corynexochida - Leiostegiidae
Ptychopleurites spinosa
Ptychopleurites spinosa trilobite
(3-0-17-0)
 Asaphida - Ptychaspididae
Idiomesus infimus
Idiomesus infimus trilobite
(12-0-0-0)
 Asaphida - Dikelocephalidae
Briscoia cf. angustilimba, Monocheilus truncatus, Saukiella sp., "Saukiella cf. pyrene" = Prosaukia pyrene
Briscoia cf. angustilimba Westrop 1986 trilobite
(3-0-0-0)
Monocheilus truncatus trilobite
(1-2-1-0)
Saukiella sp. Ulrich and Resser 1933 trilobite
(0-0-1-0)
"Saukiella cf. pyrene" = Prosaukia pyrene Walcott 1913 trilobite
(2-0-0-0)
 Ptychopariida - Plethopeltidae
"Plethometopus sp." = Plethopeltis
"Plethometopus sp." = Plethopeltis Raymond 1913 trilobite
(0-2-0-0)