Hoyada de Ischiqualasto, undifferentiated (Triassic to of Argentina)

Where: San Juan, Argentina (30.1° S, 67.9° W: paleocoordinates 41.4° S, 31.5° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Ischigualasto Formation, Carnian to Carnian (237.0 - 208.5 Ma)

• Ischigualasto-Ischichuca basin; position within the formation is not stated

• member-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected in 1959

• PVL: Instituto de Miguel Lillo, Tucuman, Argentina

Primary reference: R. M. Casamiquela. 1961. Dos nuevos estagonolepoideos Argentinos de Ischigualasto, San Juan. Revista Asocíacion Geológia Argentina 16:143-203 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 92318: authorized by Richard Butler, entered by Richard Butler on 06.11.2009, edited by Bethany Allen

Creative Commons license: CC BY (attribution)

Taxonomic list

Amphibia
 Temnospondyli -
Promastodonsaurus bellmani n. sp.2 Bonaparte 1963 tetrapod
PVL 2092 (holotype), large skull fragment with attached mandibular ramus
Osteichthyes
 Therapsida - Chiniquodontidae
Chiniquodon theotonicus1 Huene 1936 cynodont
Reptilia
 Pseudosuchia -
Aetosauroides scagliai Casamiquela 1960 aetosaur
PVL 2455, partial pelvis, partial femur, vertebae, scutes. PVL 2456, parts of dorsal and ventral scutes
 Pseudosuchia - Stagonolepididae
Stagonolepididae indet.3 aetosaur
PVL 2505, articulated scutes and centra in unprepared block. Originally referred to Aetosauroides scagliai