The Triassic Insect Fauna from Argentina. Blattoptera from the Los Rastros Formation (Bermejo Basin), La Rioja Province
Rafael Gioia Martins-Neto 1 , Adriana Mancuso 2 and Oscar Florencio Gallego 3
1 Programa de Pós-graduação, Universidade de Juiz de Fora-UFJF. Sociedade Brasileira de Paleoartropodologia-SBPr/: Campus Universitário-Martelos. 36036-900, Juiz de Fora, MG, Brasil. mtnsneto@icb.ufjf.br
2 IANIGLA (CRICYT-CONICET), Adrián Ruiz Leal s/n, Parque Gral. San Martín, 5500 Mendoza, CC 330. amancu@lab.cricyt.edu.ar
3 Paleontología (Facultad de Ciencias Exactas y Naturales y Agrimensura-Universidad Nacional del Nordeste) y Área Paleontología (Centro de Ecología Aplicada del Litoral-Consejo Nacional de Investigaciones Científicas y Técnicas), CC 128, 3400 Corrientes, Argentina. ofgallego@hotmail.com
Abstract. This contribution describes new fossil insect taxa from the Los Rastros Formation (early Late Triassic), La Rioja Province (Argentina). Several new taxa of the order Blattoptera, two families, seven genera and eleven species are proposed: Argentinoblatta herbsti gen. et sp. nov., Condorblatta lutzae gen. et sp. nov. (Argentinoblattidae fam. nov.), Mancusoblatta pulchella gen. et sp. nov., Hermosablatta crassatella gen. et sp. nov., Hermosablatta pectinata sp. nov. ( Mancusoblattidae fam. nov.), Lariojablatta chanarensis gen. et sp. nov. (family uncertain), Triassoblatta argentina sp. nov., Samaroblatta gualoensis sp. nov., S. corrientesina sp. nov. and Pulchellablatta nana gen. et sp. nov. (Mesoblattinidae sensu stricto ), and Argentinoblattula revelata gen. et sp. nov. (Blattulidae Vischnyakova). The presence of the genera Triassoblatta Tillyard and Samaroblatta Tillyard in the Argentinean Triassic considerably extends their known paleobiogeographic distribution.
Key words. Triassic insects. Blattoptera. Los Rastros Formation. Argentina.
Ameghiniana, Sept./Dec. 2005, vol.42, no.4, p.705-723.
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