Collection 41186, Grassy Spring Mb, Pioche Shale, NV - Eddy and McCollum 1998 (Cambrian of the United States)

Where: Lincoln County, Nevada (37.6° N, 114.4° W: paleocoordinates 3.3° S, 93.4° 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 4. 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 9428: authorized by Mark Patzkowsky, entered by Phil Borkow on 02.11.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Corynexochida - Zacanthoididae
Albertella fritzi n. sp., Ursinella major n. gen. n. sp., Albertellina aspinosa
Albertella fritzi n. sp. Eddy and McCollum 1998 trilobite
20 cranidia, 30 pygidia, 10 librigena, 15 hypostomes
Ursinella major n. gen. n. sp. Eddy and McCollum 1998 trilobite
1 pygidium
Albertellina aspinosa Palmer and Halley 1979 trilobite
4 crania, 20 pygidia