This study describes the chiton fauna (Mollusca, Polyplacophora) from deposits of the Oligocene to Miocene marine sequence of Aquitaine Basin (southwestern France) and of late Miocene of Ligerian Basin (western France). This first part of the work describes

Hanleya brachyplax Simone & Jardim in Rios, 2009 is described in detail. The species occurs off the southeastern and south coast of Brazil (São Paulo and Santa Catarina states) in depths from 250 to 408 m. It differs from its congeners in having uniform

This study describes the chiton fauna (Mollusca, Polyplacophora) from deposits of the Miocene marine sequence of North Italy, located in Piedmont and Emilia Romagna regions. This first part of the work describes the chitons pertaining to four families: