Sobre la presencia de un dinosaurio prosaurópodo en la Formación Quebrada del Barro, en el borde austral de la cuenca de Marayes-El Carrizal (Triásico Superior de San Juan)
- Autores: Gerardo E. Bossi, J. F. Bonaparte
- Localización: Acta geológica lilloana, ISSN-e 0567-7513, Vol. 15, Nº 1, 1978, págs. 41-47
- Idioma: español
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Resumen
On the presence of Prosauropod dinosaur in the Quebrada del Barro Formation, austral border of the Marayes-El Carrizal basin (Upper Triasic of San Juan province.- The main stratigraphic features of the southeastern San Juan province are discussed. The stratigraphy is made of metamorphic rocks, Upper Triassic, Lower Cretaceous and Tertiary continental deposits. In the Upper Triassic Quebrada del Barro formation, remains of the Prosauropod Riojasaurus incertus are described and figured. They suggest that the Los Colorados formation of the lschigualasto basin and the Quebrada del Barro formation of the Marayes-EI Carrizal basin in southeastern San Juan are synchronous. Some comments on the Lagarcito formation, Lower Cretaceous of the studied area and of northern San Luis are made.
