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Dhedacetus

Mammalia - Cetacea - Protocetidae

Taxonomy
Dhedacetus was named by Bajpai and Thewissen (2014). Its type is Dhedacetus hyaeni.

It was assigned to Protocetidae by Bajpai and Thewissen (2014), Marx et al. (2016) and Berta (2017).

Species
D. hyaeni (type species)

Synonymy list
YearName and author
2014Dhedacetus Bajpai and Thewissen p. 10
2016Dhedacetus Marx et al. p. 100
2017Dhedacetus Berta p. 159

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
RankNameAuthor
—Mammaliaformes
classMammalia
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
—Whippomorpha
orderCetacea
familyProtocetidae
genusDhedacetus

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

G. †Dhedacetus Bajpai and Thewissen 2014
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†Dhedacetus hyaeni Bajpai and Thewissen 2014
Diagnosis
ReferenceDiagnosis
S. Bajpai and J. G. M. Thewissen 2014Dhedacetus is a medium-sized protocetid, with premolars and molars similar in size to the larger protocetids described before from the Indian continent (namely Babiacetus, Rodhocetus, Maiacetus). As in Kharodacetus, Dhedacetus has a long, relatively broad snout (snout is narrower in Gaviacetus and Makaracetus, broader in Takracetus). In Dhedacetus, the orbit is high above the palate (unlike Indocetus and Babiacetus), the premolars are large (unlike Rodhocetus, Qaisracetus, Makaracetus, and Gaviacetus) and gracile (unlike Kharodacetus). The molars have a large protocone (unlike Babiacetus) and metacone (unlike Maiacetus). Kharodacetus is similar to all other protocetids and differs from pakicetids, ambulocetids and remingtonocetids by having a flat supraorbital shield with large orbits. It differs from basilosaurids in retaining M3.