Equinodermos del Paleozoico Inferior (Cámbrico y Ordovícico) del Macizo Hespérico: ejemplos de conservación excepcional.

Abstract

In the Lower Paleozoic (Cambrian-Middle Ordovician) sediments of the Macizo Hespérico numerous echinoderm fossils have been found (eocrinoids, homalozoans, diploporids, rombi- pherans, crinoids, and asteroids) in some exceptional conditions of conservation. This is due to the mineralized skeleton that these organisms present and the existence of some post-mortem processes that allowed this type of conservation.