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Orcaella brevirostris (Irrawaddy dolphin)

Mammalia - Cetacea - Delphinidae

Taxonomy
Orca (Orcaella) brevirostris was named by Gray (1866). It is extant. Its type specimen is BMNH 1454a, a skull. Its type locality is Waltair, which is in a Holocene coastal horizon in India. It is the type species of Orca (Orcaella).

It was recombined as Phocaena (Orca) brevirostris by Owen (1866) and Owen (1866); it was recombined as Orca brevirostris by Gray (1868); it was recombined as Orcella brevirostris by Trouessart (1904) and Turner (1912); it was recombined as Orcaella brevirostris by Scheffer and Rice (1963), Hershkovitz (1966), Rice (1998), Mead and Brownell (2005), Agnarsson and May-Collado (2008), Geisler et al. (2011), Perrin et al. (2013) and Jefferson (2021).

Synonyms
Synonymy list
YearName and author
1866Orca (Orcaella) brevirostris Gray p. 24
1866Phocaena (Orca) brevirostris Owen
1868Orca brevirostris Gray p. 6
1871Orcaella fluminalis Gray
1904Orcella brevirostris Trouessart p. 769
1904Orcella brevirostris fluminalis Trouessart p. 769
1912Orcella brevirostris Turner p. 108
1963Orcaella brevirostris Scheffer and Rice p. 7
1966Orcaella brevirostris Hershkovitz p. 77
1998Orcaella brevirostris Rice p. 120
2005Orcaella brevirostris Mead and Brownell p. 731
2008Orcaella brevirostris Agnarsson and May-Collado p. 981 figs. Fig. 2
2011Orcaella brevirostris Geisler et al. p. 6 figs. Table 1
2013Orcaella brevirostris Perrin et al. p. 571 figs. Table 1
2021Orcaella brevirostris Jefferson p. 13

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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
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes()
RankNameAuthor
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Euungulata
Artiodactylamorpha
Artiodactyla()
Whippomorpha
orderCetacea
Pelagiceti
Neoceti
suborderOdontoceti
infraorderDelphinida
superfamilyDelphinoidea
familyDelphinidae
subfamilyGlobicephalinae()
genusOrcaella()
speciesbrevirostris()

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.

Orcaella brevirostris Gray 1866 [Irrawaddy dolphin]
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Invalid names: Orcaella fluminalis Gray 1871 [synonym]
Diagnosis
No diagnoses are available