Where: Mendoza, Argentina (32.9° S, 68.8° W: paleocoordinates 41.2° S, 126.1° W)
• outcrop-level geographic resolution
When: L. laevigata 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: offshore shelf; lithified limestone and lithified shale
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 9811: authorized by John Alroy, entered by Phil Borkow on 22.01.2001, edited by John Alroy
Creative Commons license: CC BY (attribution)
Taxonomic list
Artiopoda | |
Clavagnostus calensis Rusconi 1950
Clavagnostus repandus Westergard 1930 | |
Diplagnostus planicauda Angelin 1851 | |
"Lejopyge laevigata" = Lejopyge laevigatus, "Ptychagnostus aculeatus" = Acidusus aculeatus
| |
Tomagnostella exsculpta Angelin 1851 | |