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
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 | |
Ptychagnostus cuyanus Rusconi 1948 | |
Kormagnostus seclusus Walcott 1884 |