Cabecera del río Mañero (upper), km 126, Ruta 26 (Triassic of Argentina)

Also known as head of the Manero river

Where: La Rioja, Argentina (30.0° S, 67.9° W: paleocoordinates 39.1° S, 31.4° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Los Colorados Formation (Agua de la Peña Group), Norian (228.0 - 208.5 Ma)

• highest levels of formation; formation is considered to be latest Triassic in age; specimen collected 60 metres above Neoaetosauroides holotype.

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; red sandstone

• "The sequence was interpreted as deposited by moderately sinuous fluvial systems, which laterally interfinger with and grade into horizontally bedded flood-plain deposits. To the top of the sequence, thin-bedded sandstones and siltstones dominate and were deposited in ponds and as crevasse splays in overbank settings" (Arcucci et al. 2004)

Size class: macrofossils

Preservation: mold/impression

Collected by J. Bonaparte in 1962

Collection methods: quarrying, surface (in situ), mechanical,

• PVL, Palaeontologia de Vertebrados, Instituto Miguel Lillo, Tucuman, Argentina;

Primary reference: J. F. Bonaparte. 1971. Los tetrapodos del sector superior de la Formacion Los Colorados, La Rioja, Argentina (Triásico Superior) [The tetrapods of the upper part of the Los Colorados Formation, La Rioja, Argentina (Upper Triassic)]. Opera Lilloana 22:1-183 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105696: authorized by Richard Butler, entered by Richard Butler on 24.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Pseudosuchia - Stagonolepididae
Neoaetosauroides engaeus
Neoaetosauroides engaeus Bonaparte 1969 aetosaur
PVL 3842, incomplete dorsal and ventral armours, and vertebrae preserved as impressions