Where: Neuquen, Argentina (38.0° S, 71.0° W: paleocoordinates 35.2° S, 32.9° W)
• coordinate estimated from map
When: Patagoniense ammonoid zone, Lotena Formation, Late/Upper Callovian to Late/Upper Callovian (164.7 - 155.7 Ma)
Environment/lithology: marginal marine; sandy siltstone
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 135764: authorized by John Alroy, entered by Julieta Martinelli on 07.11.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Hecticoceras discoides ammonite |