The Proterozoic unconfomity, also known more to the East, is described in the Agudo Antic/ine at the base of the Upper Alcudian (Upper Vendian) and extended to the whole antic/inory. This allows the extension of the Intra-Alcudian unconformity to the W.Depto. de Geodinámica, Estratigrafía y PaleontologíaFac. de Ciencias GeológicasTRUEpu