Collection 41209, Grassy Spring Mb., Pioche Shale, NV - Eddy and McCollum 1998 (Cambrian of the United States)

Where: Lincoln County, Nevada (37.8° N, 114.5° W: paleocoordinates 3.2° S, 93.2° 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 figure 3. stratigraphic sections).

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 9421: authorized by Mark Patzkowsky, entered by Phil Borkow on 02.11.2000, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Ptychopariida - Ptychopariidae
Amecephalites sundbergi n. gen. n. sp.
Amecephalites sundbergi n. gen. n. sp. Eddy and McCollum 1998 trilobite
6 cranidia
 Ptychopariida -
Mexicella mexicana Lochman 1948 trilobite
24 cranidia
Eokochaspis nodosa Sundberg and McCollum 2000 trilobite