Where: Neuquen, Argentina (37.5° S, 71.5° W: paleocoordinates 35.0° S, 33.3° W)

• coordinate estimated from map

When: Pseudokranaus ammonoid zone, Lotena Formation, Late/Upper Callovian (164.7 - 161.2 Ma)

Environment/lithology: marginal marine; silty 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 136306: authorized by John Alroy, entered by Julieta Martinelli on 25.11.2012

Creative Commons license: CC BY (attribution)