Where: Mendoza, Argentina (37.1° S, 68.9° W: paleocoordinates 36.5° S, 32.9° W)
• coordinate stated in text
When: Spitidiscus riccardii ammonoid zone, Agua de la Mula Member (Agrio Formation), Late/Upper Hauterivian (136.4 - 130.0 Ma)
• The Agrio Formation is exposed nearby Puesto Ojos de Agua south of Cerro Corrales and reaches more than 100 m. The succession, disturbed by Miocene andesitic sills, starts in the uppermost Pil- matué Member. The Avilé Member is not developed.
Environment/lithology: marine; limestone
Size class: macrofossils
Preservation: mold/impression
Collected by M.B. Aguirre Urreta
Primary reference: P. F. Rawson and M. B. Aguirre-Urreta. 2012. Lower Cretaceous ammonites from the Neuquén Basin, Argentina: The Hauterivian genus Spitidiscus. Cretaceous Research 33:97-105 [J. Alroy/J. Martinelli]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 135510: authorized by John Alroy, entered by Julieta Martinelli on 27.10.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Spitidiscus sp. Kilian 1910 ammonite |