Estudio de los Muricidae del Plioceno del Empordà (Catalunya, España). Descriptiva y sistemática

Abstract

In the present paper seven species of Muricidae (Neogastropoda, Gastropoda) from the Pliocene of Empordà, (Catalonya, Spain) are described. Both new material and material coming from already existing collections have been studied. Where there are a sufficient number of individuals, the descriptions is acompanied with the following numerial information: maximum (M), minimun (m), the mean (x), standar desviation (s), variance (s2), mean and variance intervals, and the correlation coefficient (r).