摘要
New remains of plesiosaurs (Diapsida; Sauropterygia) found in a transported block correlated with upper levels of the Dorotea Formation, Late Cretaceous (Maastrichtian) are describedherein. They were collected on the southern slopes of Sierra Dorotea located northeast of Puerto Natales (51 ~41 %26apos;20,4%26quot;S, 72~26%26apos;07,4%26quot;W), Magallanes Regi車n, Chile. This is the first disco very of the family Elasmosauridae in high latitudes of South America, complementing the previously known paleodistribution of this group in the eastern Pacific Ocean and the Antarctic during the latest Cretaceous. Se describen nuevos restos de plesiosaurios (Diapsida; Sauropterygia) incluidos en un bloque rodado correlacionado con estratos superiores de la Formaci車n Dorotea (Cret芍cico Tard赤o, Maastrichtiano), recolectados en la parte sur de la sierra hom車mma, ubicada al noreste de Puerto Natales (51~41%26apos;20,4%26quot;S, 72~26%26apos;07,4%26quot;W), Regi車n de Magallanes, Chile. Se reconoce por primera vez la presencia de la familia Elasmosauridae en altas latitudes de Sudam谷rica, complementando as赤 la paleodistribution previamente conocida de este grupo en el margen oriental del Oc谷ano Pac赤fico y de la Antartica durante la 迆ltima parte del Cret芍cico Tard赤o.