Introduction: Scutelliforms were diverse and widespread in shallow marine environments during Neogene times in South America. Nevertheless, they have almost never been used as biostratigraphic tools. Objective: To provide ...

Until now, the only fossil echinoderm described from the upper Miocene Paraná Formation of Argentina was the scutelliform Monophoraster duboisi. Here, we substantially increase this diversity by recording the ophiuroids ...

Material for all seven South American species of late Oligocene and Miocene scutelliform, non-lunulate sand dollars (Echinoidea: Clypeasteroida) was examined, resulting in revision of several taxa, and description of a new ...