Sierra de las Quijadas tracksite (Cretaceous of Argentina)

Where: San Luis, Argentina (32.6° S, 67.0° W: paleocoordinates 31.4° S, 31.0° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Los Jumes Formation, Neocomian (145.0 - 130.0 Ma)

• originally referred to as probably Paganzo III, equivalent to Talampaya Fm. (and therefore Middle Triassic). Has also been assigned to La Cantera Fm. (Cretaceous) in Bonaparte 1978.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; fine-grained, red sandstone

• "a fine-grained, red sandstone...weathered to a light pinkish gray"

Size class: macrofossils

Preservation: mold/impression, trace

Collected by Guiñazú, Lull, Romer, Bonaparte in 1941-1978; reposited in the AMNH

Collection methods: quarrying, surface (in situ),

Primary reference: E. Fossa-Mancini. 1939. Vestigios de antiguos lagos en la Provincia de San Luis [Vestiges of ancient lakes in the Province of San Luis]. Boletín de informaciones Petroleras: Órgano Oficial de la Dirección General de Y.P.F 16(174):17-42 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 55479: authorized by Matthew Carrano, entered by Matthew Carrano on 26.10.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Saurischia - Eubrontidae
Anchisauripus australis n. sp. Lull 1942 theropod
 Aetosauria - Batrachopodidae
"Parabatrachopus argentina n. gen. n. sp." = Batrachopus argentina
"Parabatrachopus argentina n. gen. n. sp." = Batrachopus argentina Lull 1942 archosaur
AMNH 1805-1807, 1809-1810