Quebrada de Zonda, Fm. La Laja (IANIGLA-PI) (Cambrian of Argentina)

Where: San Juan , Argentina (31.6° S, 68.7° W: paleocoordinates 43.8° S, 125.6° W)

• coordinate estimated from map

When: La Laja Formation, Cambrian (538.8 - 485.4 Ma)

• Cambrian (Series 3)

• formation-level stratigraphic resolution

Environment/lithology: lithified, fine-grained, calcareous limestone

Size class: mesofossils

Preservation: permineralized, replaced with calcite

Collected by O.L.Bordonaro in 1994

Primary reference: O.L. Bordonaro , B.R. Pratt, and V. Robledo. 2013. Systematic morphometric and palaeobiogeographic study of Blania gregaria Walcott, 1916 (Trilobita, Ptychopariida), Middle Cambrian of the Precordillera of western Argentina. Geological Journal 46(126-141) [S. Devincenzi/S. Devincenzi/S. Devincenzi]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 200101: authorized by Susana Devincenzi, entered by Susana Devincenzi on 12.03.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Asaphida - Asaphidae
"Blainia gregaria" = Asaphiscus (Blainia) gregarius
"Blainia gregaria" = Asaphiscus (Blainia) gregarius Walcott 1916 trilobite
Walcott, 1916