Abstract

En este estudio se reporta y describe un equinodermo regular del género Pseudocidaris en la Formación Rosablanca del Cretácico Inferior en el municipio de Zapatoca (Santander, Colombia). La especie presenta poca sinuosidad en los ambulacros y un disco apical dicíclico. Un análisis filogenético exploratorio muestra que el linaje de la especie se originó en el Calloviano con P. romani y que está relacionada con P. lusitánica (Oxfordiano) y P. clunifera (Barremiano-Aptiano).

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