†Mesocetus aquitanicus Flot 1896 (whale)
Full reference: L. Flot. 1896. Not sure les Cetaces fossiles de l Aquitaine. Bulletin de la Societe geologique de France 24(3):270-282
Belongs to Mesocetus according to E. L. Trouessart 1904
Sister taxa: Aetiocetidae, Aetiocetoidea, Balaenoptera cortesii portisii, Cetotherioidea, Cetotheriopsis, Chaeomysticeti, Eomysticetidae, Llanocetidae, Mammalodontidae, Mauicetus, Physalidae, Pterobalaenidae
Type specimen: Its type locality is Dax, near, which is in a Neogene marine horizon in France
Ecology: aquatic carnivore-suspension feeder