The locality is situated stratigraphically between the Chunchullo and Tatacoa Sandstone Units (Guerrero, 1990, in press), a part of the El Libano Sands and Clays unit of Fields (1959). This locality comes from within a measured stratigraphic section approximately 320 m stratigraphically above the contact with Jurassic volcanics at Cerro Gordo and 230 m below the Monkey Unit of Fields (Fields, 1959). It is found within the La Victoria Formation (=La Dorada Fm of Wellman, 1970 in part), Honda Group (Guerrero, 1990, in press). |