northeast edge, Cancha de Bochas (Triassic of Argentina)

Also known as Eoraptor type, Valle de la Luna

Where: San Juan, Argentina (31.1° S, 68.9° W: paleocoordinates 47.7° S, 34.6° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Scaphonyx-Exaeretodon-Herrerasaurus other zone, Cancha de Bochas Member (Ischigualasto Formation), Carnian (237.0 - 228.0 Ma)

• lower third of formation. Collected from the "Scaphonyx-Exaeretodon-Herrerasaurus

•biozone" of Martinez et al. (2011: Science 331: 206) which reportedly represents "a narrow temporal interval from 231.5 to 229 Ma in the latter half of the Carnian stage".

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; gray, red siltstone

• muddy siltstone; "reddish-gray"

Size class: macrofossils

Collected by R. N. Martínez in 1991

Collection methods: quarrying, mechanical,

• Eoraptor found in "close association" with other taxa listed, but specifics are not given.

•PVSJ: Instituto y Museo de Ciencias Naturales, Universidad Nacional de San Juan, San Juan 5400, Argentina

Primary reference: P. C. Sereno, C. A. Forster, R. R. Rogers and A. M. Monetta. 1993. Primitive dinosaur skeleton from Argentina and the early evolution of Dinosauria. Nature 361:64-66 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 24877: authorized by Matthew Carrano, entered by Matthew Carrano on 21.08.2002, edited by Bethany Allen and Graeme Lloyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Undescribed carnivorous cynodont" is probably Ecteninion.
 Saurischia -
Eoraptor lunensis n. gen. n. sp.
Eoraptor lunensis n. gen. n. sp. Sereno et al. 1993 saurischian
PVSJ 512, articulated skeleton
 Saurischia - Herrerasauridae
Herrerasaurus ischigualastensis Reig 1963 herrerasaurid
 Pseudosuchia -
Aetosauroides sp. Casamiquela 1960 archosaur
 Loricata -
Saurosuchus galilei Reig 1959 archosaur
 Therapsida - Cynodontia
 Therapsida - Ecteniniidae
Diegocanis elegans n. gen. n. sp.2
Diegocanis elegans n. gen. n. sp.2 Martinez et al. 2013 therapsid
PVSJ 881
 Therapsida - Traversodontidae
Exaeretodon sp., "Exaeretodon frenguellii" = Exaeretodon argentinus1
Exaeretodon sp. Cabrera 1943 therapsid
"Exaeretodon frenguellii" = Exaeretodon argentinus1 Bonaparte 1962 therapsid
MLP 61-VIII-2-23, MLP 61-VIII-2-44 and PVL 2079, skulls; PVL 1897 and PVL 2468, mandibles; PVL 2458, partial maxillary
 Therapsida - Stahleckeriidae
Ischigualastia sp. Cox 1962 dicynodont