Oligocene scorpion and insects (Plecoptera and Coleoptera) from the Los Ahuehuetes Locality, Puebla, Mexico
Abstract
Abstract. A scorpion prosoma, a plecopteran nymph, Euperlida parvicercifera Cifuentes-Ruiz gen. et sp. nov., and the elytra of an adult beetle (Coleoptera) are described from the Oligocene Coatzingo Formation, Puebla, Mexico. Specimens were found at the Los Ahuehuetes locality, Puebla, from where numerous plant remains have been previously described. A lacustrine paleoenvironment for these sediments is confirmed based on habitat of recent Plecoptera. This report represents the first record of Oligocene continental arthropods from Central Mexico, and the first for a fossil Plecoptera in this country. It is the first record for a Nearctic extinct genus of Perlidae. Resumen. ESCORPIÓN E INSECTOS (PLECOPTERA Y COLEOPTERA) DEL OLIGOCENO DE LA LOCALIDAD LOS AHUEHUETES, PUEBLA, MÉXICO. El prosoma de un escorpión, la ninfa del plecóptero Euperlida parvicercifera Cifuentes-Ruiz gen. et sp. nov., y los élitros de un coleóptero adulto son descritos del Oligoceno de la Formación Coatzingo, Puebla, México. Los especímenes fueron encontrados en la localidad de Los Ahuehuetes, Puebla, de donde numerosos restos de plantas han sido previamente descritos. Un paleoambiente lacustre es confirmado en base al hábitat de Plecoptera recientes. Se trata del primer registro de artrópodos continentales del Oligoceno de la porción central de México, y el primer registro fósil de Plecoptera para este país. Es el primer registro de un género neártico extinto de Perlidae.Downloads
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