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Mammalodon hakataramea

Mammalia - Cetacea - Mammalodontidae

Taxonomy
Mammalodon hakataramea was named by Fordyce and Marx (2016). Its type specimen is OU 22026, a partial skull (dorsal part of braincase, comprising much of the supraoccipital and parts of the parietals and squamosals, preserved with the original dorsal surface down, and ), and it is a 3D body fossil. Its type locality is Haughs Quarry [Kokoamu Greensand], which is in a Duntroonian marine sandstone/limestone in the Kokoamu Greensand Formation of New Zealand.

Synonymy list
YearName and author
2016Mammalodon hakataramea Fordyce and Marx p. 109 figs. Figs. 2, 3
2017Mammalodon hakataramea Tsai and Kohno
2018Mammalodon hakataramea Fordyce and Marx p. 5 figs. Fig. 4

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
RankNameAuthor
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
orderCetacea
Pelagiceti
Neoceti
suborderMysticeti
familyMammalodontidae
genusMammalodon
specieshakataramea

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.

Diagnosis
ReferenceDiagnosis
R. E. Fordyce and F. G. Marx 2016Differs from M. colliveri in having smaller teeth, an anteroposteriorly longer supraoccipital and a parabolic nuchal crest that lacks an abrupt anterolateral curve in dorsal view, as well as in having a tympanic bulla with a more distinct interprominential notch, a straight medial margin, an anterolaterally more in ated outer lip, and a deeper involucrum bearing less developed oblique sulci (without adjacent nodules).
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: Duntroonian or 27.30000 to 25.20000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Duntroonian27.3 - 25.2New Zealand Mammalodon hakataramea (type locality: 152358)