The Triassic coleopteran fauna of southern South America: Morphometric variation of elytra, paleobiogeography, and a phylogenetic approach

... The Order Coleoptera was also treated in the works of Martins-Neto et al. [26][27][28][29][30] and Martins-Neto and Gallego [31], where new Triassic species assigned to Permosynidae, Schizocoleidae, Cupedidae, and Elateridae were described. It is important to emphasize that material collected in the Potrerillos-Cacheuta sequences during an expedition occur-Psyche 3 ring in April of 2010 was included in our analyses, as was Jurassic specimens from Chubut Province, collected during a 2009 fieldtrip and material from the Los Rastros Formation. ...

... The fossil insect fauna of Argentina comes from stratigraphic levels of continental sediments assigned to the interval between the upper Middle Triassic to Lower Cretaceous. (Figure 2 miomopterans, orthopterans, trichopterans, plecopterans, odonatans, and grylloblattids originate from the Cerro de las Cabras Formation (1 specimen), the Potrerillos Formation (21 described species and 229 collected specimens), and the Cacheuta Formation (2 described species and 27 specimens) [29,30,[39][40][41][42][43]. ...

... In Brazil, 17 species were discovered and come from Early to Middle Permian ages of Irati Formation [69, 70] and from Middle to Late Triassic ages of the Santa María Formation [71] of the Paraná Basin, from the Early Cretaceous age of Santana Formation in Araripe Basin [72-75], from the Oligocene age of Tremembé Formation in Taubate Basin and Fonseca Formation in Fonseca Basin[76][77][78]. In Argentina the order is restricted to Late Triassic age with twenty nine species described[25][26][27][28][29][30][31]33] from Los Rastros and Ischichuca Formations in La Rioja Province, the Cortaderita Formation in San Juan Province, the Potrerillos, Cacheuta, Cerro de las Cabras, and Llantenes Formation in Mendoza Province; Middle to Late Jurassic ages of the La Matilde Formation in Santa Cruz Province and the Cañadón Asfalto Formation in Chubut Province [21, 24, 32]; Middle to Late Eocene ...

... In the sequential framework proposed by Zerfass et al. (2004), the mud facies of the PTM deposits containing the fossil flora represent phases of base level changes that led to the massive lacustrine beds containing the tetrapod fossils. The Carnian age proposed to the PTM deposits is in agreement with the associated coleopteran faunas (Pinto and Ornellas, 1974), comparable to that identified in Los Rastros, Cacheuta, Ischichuca and Santa Joana formations, in Argentina (Mancuso et al., 2007;Martins-Neto et al., 2011). ...

... In terms of age, the presence of Baiera africana, Sphenobaiera steinmannii and Hamshawvia longipedunculata, which until now are restricted to the Carnian (Table 2), allows us to extend the previous AnisianeLadinian age assigned to the basal part Santa Maria Formation to include Carnian deposits. This inference have support also in the Carnian age proposed to the associate coleopterans fauna (Pinto, 1956;Martins-Neto et al., 2011), which correlates with those from Argentina (Lara et al., 2012;Corrêa, 2014). ...

... Although the rich Triassic entomofauna of Argentina has been studied for a long time, yielding 12 orders recorded and 81 species described (Brauckmann et al. 2010;Gallego et al. 2011;Martins-Neto et al. 2011;Lara et al. 2012), until recently South America was one of only two continents (the other one being Antarctica) with no records of Triassic Diptera. The first insects recorded from the Triassic of South America (Argentina) have been described as crane flies, Tipuloidea rhaetica Wieland, 1925 andTipulodites affinis Wieland, 1925; however now they are considered to be members of Homoptera and Mecoptera, respectively (Tillyard 1926;Martins-Neto et al. 2003;Bashkuev pers. ...