Isocetus

Isocetus is an extinct genus of baleen whale belonging to the clade Thalassotherii. Remains have been found in middle Miocene marine deposits in Belgium.

Description

Isocetus was considered a nomen dubium by Steeman but was treated as a distinct species by Bisconti et al. based on characters of the mandibular condyle and dentary. A complete thalassothere specimen from Belgium previously assigned to Isocetus depauwi by Abel is now the holotype of the species Parietobalaena campiniana.