Puesto Miguez (IANIGLA collection) (Triassic of Argentina)

Also known as Cerro Cacheuta, Minas de Petroleo

Where: Argentina (33.1° S, 69.1° W: paleocoordinates 49.8° S, 34.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Potrerillos Formation (Uspallata Group), Carnian (237.0 - 228.0 Ma)

• Upper Section of the Potrerillos Formation

Environment/lithology: fluvial; lithified, yellow shale

• The Cuyo Basin may be characterised as a passive rift basin produced as a result of generalised extension induced by crustal thinning and collapse of the Upper Palaeozoic (Gondwana) orogen (Llambías and Sato, 1990, 1995; Spalletti, 1999). It can be defined as a half graben that shows strong asymmetric structural and depositional features, as well as intrabasinal highs or transference zones that delimit different depocentres (Kokogián et al., 1988, 1993; Ramos and Kay, 1991; López Gamundí, 1994; Spalletti, 1999, 2001).
• "The Potrerillos Formation is composed of thick, coarse conglomerates at its base and by thinner conglomerates, sandstones, bentonites, mudstones, and carbonaceous shales in the middle and upper part of the unit. It represents a mix of braided-river channels, floodplain deposits, and high-sinuosity meandering channels." Martins-Neto et al., 2007 Insects come from the upper part of the formation

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Collection methods: Repository: Colección Paleontológica del Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA-CCT-CONICET), Mendoza City

Primary reference: M. B. Lara and B. Wang. 2016. New hemipteran insects (Eoscarterellidae, Scytinopteridae, and Protopsyllidiidae) from the Upper Triassic Potrerillos Formation of Mendoza, Argentina. PalZ 90:49-61 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 177539: authorized by Matthew Clapham, entered by Matthew Clapham on 02.04.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Insecta
 Hemiptera - Protopsyllidiidae
Protopsyllidiidae indet.
Protopsyllidiidae indet. Becker-Migdisova 1960 true bug
IANIGLA-PI 3030
 Hemiptera - Scytinopteridae
Argentinoscytina clara n. gen. n. sp.
Argentinoscytina clara n. gen. n. sp. Lara and Wang 2016 true bug
IANIGLA-PI 3029