La Zona de Trapezognathus diprion en la "Formación Sepulturas", Espinazo del Diablo, Cordillera Oriental Argentina

for the first time is reconized the trapezognathus diprion zone in the "sepulturas formation"at the espinazo del diablo area, the asociation is complete with: gothodus costulatus, drepanoistodus pitjanti, drepanoistodus basiovalis, drepanodus arcuatus, oistodus sp among others. this finding allows recording an upper floian age for the "sepulturas formation"cropping out at the espinazo del diablo. furthermore, the presence of trapezognathus diprion allows to recognize for andean basin affinities with the atlantic realm, temperate domain.