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Cephalorhynchus eutropia

Mammalia - Cetacea - Delphinidae

Taxonomy
Delphinus eutropia was named by Gray (1846). It is extant. Its type specimen is BM(NH) 936a-49.5.25.2, a skull. Its type locality is Straits of Magellan, which is in a Holocene coastal horizon in Argentina.

It was replaced with Eutropia dickiei by Gray (1866); it was recombined as Tursio eutropia by Gray (1866); it was recombined as Cephalorhynchus eutropia by Trouessart (1904), Scheffer and Rice (1963), Hershkovitz (1966), Rice (1998), Mead and Brownell (2005), Agnarsson and May-Collado (2008), Perrin et al. (2013), Jefferson (2021).

Synonyms
Synonymy list
YearName and author
1826Delphinus lunatus Lesson
1846Delphinus eutropia Gray p. 1 figs. Plate 34
1849Delphinus eutropia Gray p. 1
1850Delphinus eutropia Gray p. 111
1866Eutropia dickiei Gray p. 145
1866Tursio eutropia Gray p. 262
1868Eutropia dickiei Gray p. 6
1871Eutropia dickiei Gray p. 75
1873Delphinus eutropia Scott p. 78
1893Phocaena albiventris Perez Canto p. 727
1895Tursio platyrrhinus Philippi
1896Tursio platyrrhinus Perez Canto
1904Cephalorhynchus albiventris Trouessart p. 768
1904Cephalorhynchus eutropia Trouessart p. 768
1904Cephalorhynchus platyrhinus Trouessart p. 768
1963Cephalorhynchus eutropia Scheffer and Rice p. 5
1966Cephalorhynchus eutropia Hershkovitz p. 74
1998Cephalorhynchus eutropia Rice p. 101
2005Cephalorhynchus eutropia Mead and Brownell p. 727
2008Cephalorhynchus eutropia Agnarsson and May-Collado p. 981 figs. Fig. 2
2013Cephalorhynchus eutropia Perrin et al. p. 571 figs. Table 1
2021Cephalorhynchus eutropia Jefferson p. 54

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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
RankNameAuthor
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
—Whippomorpha
orderCetacea
—Pelagiceti
—Neoceti
suborderOdontoceti
infraorderDelphinida
superfamilyDelphinoidea
familyDelphinidae
subfamilyLissodelphininae()
genusCephalorhynchusGray 1846
specieseutropia()

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.

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Invalid names: Delphinus lunatus Lesson 1826 [synonym], Eutropia dickiei Gray 1866 [synonym], Phocaena albiventris Perez Canto 1893 [synonym], Tursio platyrrhinus Philippi 1895 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: hydroxyapatitesubo
Form: roller-shapedo
Ontogeny: modification of partso
Environment: marine, freshwatersubo
Locomotion: actively mobileo
Life habit: aquatico
Depth habitat: surfaceo
Diet: piscivoref
Diet 2: carnivoref
Reproduction: viviparoussubo
Created: 2005-06-08 10:11:09
Modified: 2005-06-08 12:11:09
Source: f = family, subo = suborder, o = order
References: Uhen 2004, Nowak 1991

Age range: Holocene or 0.01170 to 0.00000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Holocene0.0117 - 0.0Chile Cephalorhynchus eutropia (167980)
Holocene0.0117 - 0.0Argentina Delphinus eutropia (type locality: 86896)