El icnogénero Psammichnites Torell, 1870 en la Formación Hoyada Verde, Carbonífero Superior de la cuenca Calingasta-Uspallata
Abstract
Resumen. El icnogénero Psammichnites Torell es documentado en la Formación Hoyada Verde, Carbonífero de la cuenca, Calingasta-Uspallata. Dos icnoespecies son descriptas e ilustradas, P. implexus and P. plummeri. En estudios previos estas estructuras fueron erróneamente referidas a Subphyllochorda, Helminthoida y Helminthorhaphe. La presencia de Psammichnites proporciona evidencias icnológicas inequívocas de condiciones marinas, lo cual es también indicado por los abundantes cuerpos fósiles de origen marino preservados en la sucesión. Abstract. THE ICHNOGENUS PSAMMICHNITES TORELL, 1870 IN THE HOYADA VERDE FORMATION, UPPER CARBONIFEROUS OF THE CALINGASTA-USPALLATA BASIN. The ichnogenus Psammichnites Torell is documented in the Hoyada Verde Formation, Carboniferous, Calingasta-Uspallata Basin. Two ichnospecies are described and illustrated, P. implexus and P. plummeri. In previous studies, these structures were erroneously referred to as Subphyllochorda, Helminthoida and Helminthorhaphe. The presence of Psammichnites provides unequivocal ichnologic evidence of marine conditions, as also indicated by the abundant marine body fossils preserved in the succession.Downloads
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