La Mala Dormida (Cretaceous of Argentina)

Also known as This is one of Gerth’s (1925, fig. 17) localities.

Where: Mendoza, Argentina (34.6° S, 69.6° W: paleocoordinates 34.1° S, 34.0° W)

• coordinate stated in text

When: Agua de la Mula Member (Agrio Formation), Late/Upper Hauterivian (136.4 - 130.0 Ma)

Environment/lithology: yellow limestone

• A condensed section of the complete Agrio Formation is composed of yellowish silty limestones reaching some 150 m.

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 135508: authorized by John Alroy, entered by Julieta Martinelli on 27.10.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ammonitida - Holcodiscidae
Spitidiscus kilapiae Rawson and Aguirre-Urreta 2012 ammonite
sp. nov