The Triassic Insect Fauna from Argentina. Blattoptera from the Los Rastros Formation (Bermejo Basin), La Rioja Province Rafael

Authors

  • Rafael Gioia Martins-Neto
  • Adriana Mancuso
  • Oscar Florencio Gallego

Abstract

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. Resumen. LA FAUNA DE INSECTOS TRIÁSICOS DE LA ARGENTINA. BLATTOPTERA DE LA FORMACIÓN LOS RASTROS (CUENCA DEL BERMEJO) PROVINCIA DE LA RIOJA. En este trabajo se describen nuevos insectos fósiles de la Formación Los Rastros (Triásico Superior bajo), provincia de La Rioja (Argentina). Se proponen varios nuevos taxones pertenecientes al orden Blattoptera, dos familias, siete géneros y once especies: 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. (familia incierta), Triassoblatta argentina sp. nov., Samaroblatta gualoensis sp. nov., S. corrientesina sp. nov., Pulchellablatta nana gen. et sp. nov (Mesoblattinidae sensu stricto) y Argentinoblattula revelata gen. et sp. nov. (Blattulidae Vischnyakova). La presencia de los géneros Triassoblatta Tillyard y Samaroblatta Tillyard en el Triásico de la Argentina extiende considerablemente su distribución paleogeográfica.

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Published

2013-04-15

Issue

Vol. 42 No. 4

Section

Articles

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How to Cite

The Triassic Insect Fauna from Argentina. Blattoptera from the Los Rastros Formation (Bermejo Basin), La Rioja Province Rafael. (2013). Ameghiniana, 42(4), 705-723. https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/935