Pontobasileus

Pontobasileus is an archaeocete whale known from a fragment of a single tooth described by Leidy 1873.^[1][2] It can questionably be dated to the Eocene of Alabama.^[3]

Pontobasileus Temporal range: Eocene PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Suborder:	Whippomorpha
Infraorder:	Cetacea
Family:	†Protocetidae
Subfamily:	†Georgiacetinae
Genus:	†Pontobasileus Leidy, 1873
Species:	†P. tuberculatus
Binomial name
†Pontobasileus tuberculatus Leidy, 1873

Leidy assigned the tooth to Archaeoceti, but without neither a stratigraphic nor a geographic locality it is virtually impossible to argue for or against this classification. The tooth was later classified as an Archaeoceti incertae sedis^[4] and even a squalodont odontocete (a more recent whale), but can also be assigned to Protocetidae.^[5]