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Isanacetus laticephalus

Mammalia - Cetacea

Taxonomy
Isanacetus laticephalus was named by Kimura and Ozawa (2002) [Mizunami Fossil Museum ]. Its type specimen is MFM 28501, a skeleton (skull & skeleton), and it is a 3D body fossil. Its type locality is Oyamada-mura, which is in a Burdigalian marine sandstone in Japan.

It was considered an invalid subgroup of Isanacetus by Bisconti et al. (2013).

Synonymy list
YearName and author
2002Isanacetus laticephalus Kimura and Ozawa p. 684 figs. Figs. 2-12
2011Isanacetus laticephalus Marx p. 83 figs. Figure 2
2015Isanacetus laticephalus Marx and Fordyce p. 4 figs. Figure 2
2024Isanacetus laticephalus Tanaka et al. p. 482
2024Isanacetus laticephalus Tanaka et al. p. 27

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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
RankNameAuthor
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
—Whippomorpha
orderCetacea
—Pelagiceti
—Neoceti
suborderMysticeti
—Chaeomysticeti()
—Plicogulae
genusIsanacetus
specieslaticephalus

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.

†Isanacetus laticephalus Kimura and Ozawa 2002
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: hydroxyapatitesubo
Form: roller-shapedo
Ontogeny: modification of partso
Environment: marinesubo
Locomotion: actively mobileo
Life habit: aquaticsubo
Depth habitat: surfaceo
Diet: carnivoresubo
Diet 2: suspension feedersubo
Reproduction: viviparouso
Created: 2005-03-06 14:20:41
Modified: 2005-03-06 16:34:40
Source: subo = suborder, o = order
Reference: Uhen 2004

Age range: Burdigalian or 20.45000 to 15.98000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Burdigalian20.45 - 15.98Japan (Mie) Isanacetus laticephalus (type locality: 46946)
Burdigalian20.45 - 15.98Japan (Gifu) Isanacetus laticephalus (46950)
Burdigalian20.45 - 15.98Japan (Okayama) Isanacetus laticephalus (76044)
Burdigalian20.45 - 15.98Japan Isanacetus laticephalus (203413)
Burdigalian - Langhian20.45 - 13.82Japan Isanacetus laticephalus (236002)