A new Triassic insect fauna from Cerro Bayo, Potrerillos (Mendoza province, Argentina) with description of new taxa (Insecta: Blattoptera and Coleoptera)

MARTINS-NETO, R.G.; GALLEGO, O.F.; ZAVATTIERI, A.M.

Alcheringa

Association of Australasian Paleontologist

Lugar: Londres; Año: 2007 vol. 31 p. 199 - 213

0311-5518

      This contribution describes new fossil insect taxa from the early Late Triassic Potrerillos Formation (lower section), at quebrada del puente, Cerro Bayo, Mendoza Province, Argentina. A new family, three new genera and four new species of Blattoptera are described: Anablatta compacta gen. et sp. nov., Potrerilloblatta stipanicici gen. et sp. nov (Subioblattidae Schneider), Delpuenteblatta dangeloi gen. et sp. nov and Lariojablatta neiffi sp. nov. (Delpuenteblattidae fam. nov.); and a new coleopteran species, Delpuentesyne menendezi sp. nov. (Permosynidae Tillyard). These findings extend the stratigraphic distribution of the typical Triassic coleopteran taxa. With the Los Rastros fauna the new assemblage shares the genus Lariojablatta. The Blattoptera and Coleoptera are not typical members of the Australian and South African Triassic biota (Ademosyne for Coleoptera and Triassoblatta and Samaroblatta for Blattoptera) but rather endemic genera (Delpuentesyne, Potrerilloblatta and Delpuenteblatta).