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Pseudorca yokoyamai

Mammalia - Cetacea - Delphinidae

Taxonomy
Pseudorca yokoyamai was named by Matsumoto (1926) [type specimen figured, but no number or museum listed: paratype = Imperial Museum of Ueno, 2216]. It is a 3D body fossil. Its type locality is Hommoku, which is in a Calabrian marine horizon in the Sanuki Formation of Japan.

Synonymy list
YearName and author
1926Pseudorca yokoyamai Matsumoto p. 23

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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
subfamilyGlobicephalinae()
genusPseudorcaReinhardt 1862
speciesyokoyamai

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.

†Pseudorca yokoyamai Matsumoto 1926
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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: Nowak 1991, Uhen 2004

Age range: base of the Pliocene to the top of the Early/Lower Pleistocene or 5.33300 to 0.78100 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Pliocene5.333 - 2.588Japan (Chiba) Pseudorca yokoyamai (46044)
Early/Lower Pleistocene2.588 - 0.781Japan (Chiba) Pseudorca yokoyamai (76020)
Early/Lower Pleistocene2.588 - 0.781Japan (Kanagawa) Pseudorca yokoyamai (76024)
Calabrian1.8 - 0.774Japan (Kanagawa) Pseudorca yokoyamai (type locality: 46043)