200m N of E.S.I., Empozada Form., Mendoza, Argentina - Tortello and Bordonaro 19 (Cambrian of Argentina)

Where: Mendoza, Argentina (29.5° S, 59.3° W: paleocoordinates 29.5° S, 59.3° W)

• outcrop-level geographic resolution

When: P. punctuosus zone, Empozada Formation, Middle Cambrian (509.0 - 497.0 Ma)

• JA: laevigata zone is late Middle Cambrian according to Gradstein et al. 2004

• formation-level stratigraphic resolution

Environment/lithology: lithified carbonate

• general: isolated, predominantly carbonate blocks (olistoliths

Collection methods: Revisions of the Carlos Rusconi collections in the Museum of Natural Sciences of Mendoza, Argentina. Includes only agnostid trilobites.

Primary reference: M. F. Tortello and O. L. Bordonaro. 1997. Cambrian Agnostid trilobites from Mendoza, Argentina: A systematic revision and biostratigraphic implications. Journal of Paleontology 71(1):74-86 [M. Patzkowsky/P. Borkow]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 9815: authorized by John Alroy, entered by Phil Borkow on 22.01.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

Artiopoda
 Agnostida - Ptychagnostidae
Ptychagnostus cuyanus Rusconi 1948
 Agnostida - Agnostidae