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Ankylorhiza

Mammalia - Cetacea - Agorophiidae

Synonymy list
YearName and author
2020Ankylorhiza Boessenecker et al. p. 1 figs. Fig. 4
2023Ankylorhiza Velez-Juarbe

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Eugnathostomata
—Teleostomi(Bonaparte 1836)
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
suborderOdontoceti
—Amblyoccipita
—Stegoceti
familyAgorophiidae
genusAnkylorhiza

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.

G. †Ankylorhiza Boessenecker et al. 2020
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†Ankylorhiza tiedemani Allen 1887
Diagnosis
ReferenceDiagnosis
R. W. Boessenecker et al. 2020Ankylorhiza tiedemani is a large (425 mm bizygomatic width; body length est. 4.8 m) stem odontocete with limited polydonty (10 postcanine teeth) and moderate heterodonty. Ankylorhiza differs from all other odontocetes in the extreme development of nuchal crests and differs from all other stem odontocetes in its larger size and combination of derived (mostly single-rooted teeth; simplified tooth crowns) and plesiomorphic characters (e.g., parietal exposed at vertex, symmetrical skull, prominent intertemporal constriction, and longer humerus with long deltopectoral crest.
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: carnivoresubo
Reproduction: viviparoussubo
Created: 2005-03-06 14:21:39
Modified: 2005-09-22 15:42:08
Source: subo = suborder, o = order
Reference: Uhen 2004

Age range: base of the Rupelian to the top of the Langhian or 33.90000 to 13.82000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Rupelian33.9 - 27.3USA (South Carolina) A. sp. (188994) Saurocetus gibbesii (45500) Squalodon tiedemani (55520)
Chattian27.3 - 23.04USA (South Carolina) A. tiedemani (97550)
Aquitanian - Langhian23.04 - 13.82USA (North Carolina) Squalodon tiedemani, Squalodon whitmorei (48887)