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Antaecetus

Osteichthyes - Cetacea - Basilosauridae

Taxonomy
Antaecetus was named by Gingerich et al. (2022) [urn:lsid:zoobank.org:act:5F9DDF63-8AE2-4AA6-9698-38840063555A]. Its type is Platyosphys aithai.

It was assigned to Pachycetinae by Gingerich et al. (2022).

Species
Platyosphys aithai (type species)

Synonymy list
YearName and author
2022Antaecetus Gingerich et al. p. 19

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
subclassSynapsida
Therapsida()
infraorderCynodontia()
Mammaliamorpha
RankNameAuthor
Mammaliaformes
classMammalia
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Euungulata
Artiodactylamorpha
Artiodactyla()
Whippomorpha
orderCetacea
Pelagiceti
familyBasilosauridae
subfamilyPachycetinae
genusAntaecetus

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. †Antaecetus Gingerich et al. 2022
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Platyosphys aithai Gingerich and Zouhri 2015
Diagnosis
ReferenceDiagnosis
P. D. Gingerich et al. 2022Antaecetus has the distinctive pachyosteosclerotic vertebrae of pachycetine basilosaurids but differs from Pachycetus in being smaller and having a notably small cranium. The teeth are more gracile, with smooth rather than crenulated enamel. The first upper premolar, P1, differs from that in Pachycetus in being single-rooted. Posterior upper premolars differ from those of Pachycetus in having three rather than four accessory cusps or denticles flanking the central cusp anteriorly and posteriorly. Upper molars differ in retaining a distinct posteromedial expansion in the position formerly occupied by the protocone.
Measurements
No measurements are available
Composition: hydroxyapatiteo
Form: roller-shapedo
Ontogeny: modification of partso
Environment: marineo
Locomotion: actively mobileo
Life habit: aquatico
Depth habitat: surfaceo
Diet: carnivoreo
Reproduction: viviparouso
Created: 2005-03-06 14:19:05
Modified: 2017-04-17 10:41:18
Source: o = order
Reference: Uhen 2004

Age range: Bartonian or 41.03000 to 37.71000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Bartonian41.03 - 37.71Western Sahara Platyosphys aithai (175734)
Bartonian41.03 - 37.71Egypt A. sp. (227707)