Resumen
The first record of Neogene holocephalan chondrichthyans fishes from the Bahía Inglesa Formation is documented. The new material is Middle Miocene-Late Miocene in age and comprises two dental plates coming from fossiliferous beds located to the southeast of southern Caldera. Based on its characteristic features and comparison with living and other fossil callorhynchids the plates are assigned to Callorhinchus sp.