Quebrada Chavela (Carboniferous of Argentina)

Where: San Juan, Argentina (30.2° S, 69.1° W: paleocoordinates 58.9° S, 76.2° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Volcan Formation, Mississippian (358.9 - 323.2 Ma)

• "Evidence afforded by the brachiopods suggests a Lower Carboniferous age for the Volcan formation, although the scarcity of the material does not permit an exact age determination."

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified wackestone and lithified limestone

• "The Volcan Formation is a 500 meter thick succession starting with continental deposits containing plant fragments, grading into an upper section of graywackes, limestones and mudstones containing a marine fauna from which the brachiopods were taken."

Collected by G. Farque

Primary reference: A. J. Amos. 1958. Some Lower Carboniferous brachiopods from the Volcan Formation, San Juan, Argentina. Journal of Paleontology 32(5):838-845 [N. Heim/N. Heim]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 74056: authorized by Noel Heim, entered by Noel Heim on 19.07.2007, edited by Diego Balseiro

Creative Commons license: CC BY (attribution)

Taxonomic list

• "These [brachiopods] are associated with gastropods, pelecypods, cephalopods, conulariids and ostracods."
Show authors, comments, and common names
Strophomenata
 Strophomenida - Anopliidae
Yagonia furquei
Yagonia furquei Taboada and Shi 2009
Rhynchonellata
 Rhynchonellida - Camarotoechiidae
"Camarotoechia chavelensis" = Azurduya chavelensis
"Camarotoechia chavelensis" = Azurduya chavelensis Amos 1958
designated as new genus and new species, but it was not indicated if the holotype came from this collection or collection #74055