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Echovenator

Mammalia - Cetacea - Xenorophidae

Taxonomy
Echovenator was named by Churchill et al. (2016). Its type is Echovenator sandersi.

It was assigned to Xenorophidae by Churchill et al. (2016) and Berta (2017).

Species
E. sandersi (type species)

Synonymy list
YearName and author
2016Echovenator Churchill et al. p. 1
2017Echovenator Berta p. 160

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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
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
—Whippomorpha
orderCetacea
—Pelagiceti
—Neoceti
suborderOdontoceti
familyXenorophidae
genusEchovenator

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. †Echovenator Churchill et al. 2016
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†Echovenator sandersi Churchill et al. 2016
Diagnosis
ReferenceDiagnosis
M. Churchill et al. 2016Echovenator has the following synapomorphies of Xenorophi- dae: premaxilla underlies the ascending process of the maxilla, a frontal window that exposes the maxilla and premaxilla, and an elongate ventrolateral tuberosity of the periotic [6, 7]. Echove- nator differs from all xenorophids in having fused, or partially fused, fronto-nasal and maxillo-premaxillary sutures and in having a paranaris fossa; it differs from Xenorophus sloanii and Albertocetus meffordorum in having a postnarial fossa and a depressed internasal suture; and it differs from Cotylocara macei in having an undivided postnarial fossa and in having larger dorsal exposures of parietals.
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: Chattian or 28.10000 to 23.03000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Oligocene28.4 - 23.03USA (North Carolina) E. sp. (71651)
Chattian28.1 - 23.03USA (South Carolina) E. sandersi (180866)