Collection 41169, Grassy Spring Mb., Pioche Shale, NV - Eddy and McCollum 1998 (Cambrian of the United States)

Where: Lincoln County, Nevada (37.8° N, 114.6° W: paleocoordinates 3.2° S, 93.1° W)

• outcrop-level geographic resolution

When: Albertella Biozone zone, Grassy Spring Member (Pioche Shale Formation), Solvan (510.2 - 504.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: lithified packstone

• bioclastics (interpretted from the stratigraphic columns of figure 3).

Collection methods: Only trilobites from the albertellina aspinosa subbiozone were collected.

Primary reference: J. D. Eddy and L. B. McCollum. 1998. Early Middle Cambrian Albertella biozone trilobites of the Pioche Shale, southeastern Nevada. Journal of Paleontology 72(5):864-887 [M. Patzkowsky/P. Borkow/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 9468: authorized by Mark Patzkowsky, entered by Phil Borkow on 05.11.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Pancus palmeri n. gen. n. sp., Volocphalina variosa n. sp.
Pancus palmeri n. gen. n. sp.
1 cranidium
Volocphalina variosa n. sp.
8 cranidia
Trilobita
 Ptychopariida -
Mexicella granulata n. sp.
Mexicella granulata n. sp. Eddy and McCollum 1998 trilobite
2 cranidia
 Corynexochida - Zacanthoididae
Delamarella brevispinaspis n. gen. n. sp., Albertellina aspinosa
Delamarella brevispinaspis n. gen. n. sp. Eddy and McCollum 1998 trilobite
2 cranidia, 10 pygidia
Albertellina aspinosa Palmer and Halley 1979 trilobite
4 cranidia, 10 pygidia