Cajon Troncoso 4 (Jurassic of Argentina)

Where: Mendoza, Argentina (36.0° S, 71.0° W: paleocoordinates 33.4° S, 33.5° W)

• coordinate estimated from map

When: La Manga Formation, Late/Upper Oxfordian (161.2 - 155.7 Ma)

Environment/lithology: limestone and marl

Size class: macrofossils

Primary reference: H. Parent. 2006. Oxfordian and late Callovian ammonite faunas and biostratigraphy of the Neuquen-Mendoza and Tarapaca Basins (Jurassic, Ammonoidea, Western South-America). Boletin del Instituto de Fisiografia y Geologia 76(1-2):1-70 [J. Alroy/J. Martinelli]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 136700: authorized by John Alroy, entered by Julieta Martinelli on 02.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ammonitida - Perisphinctidae
Perisphinctidae indet. Steinmann 1890 ammonite
Cubasphinctes durangensis Burckhardt 1912 ammonite