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Physeterula dubusi

Mammalia - Cetacea - Physeteridae

Taxonomy
Physeterula dubusii was named by Van Beneden (1877) [no type specimen listed in Van Beneden (1877); information on the holotype from Lambert 2008]. Its type specimen is IRSNB M.527, a mandible (a fragmentary skull including rostral fragments of the premaxillae, parts of the supracranial basin and of the basicranium, with the associated mandible and 18 ), and it is a 3D body fossil. Its type locality is Deurne (Fort 1), Deurne Sand, which is in a Tortonian lagoonal sandstone in the Diest Formation of Belgium. It is the type species of Physeterula.

It was recombined as Kogia dubusii by Cope (1890); it was corrected as Physeterula dubusi by Lydekker (1887), Trouessart (1904), Lambert (2008), Velez-Juarbe et al. (2015).

Synonyms
Synonymy list
YearName and author
1859Delphinus acutidens von Meyer
1861Delphinus acutidens Meyer
1874Physeterula dubusii Vanden Broeck p. 146
1876Orcopsis acutidens Van Beneden p. 489
1877Physeterula dubusii Van Beneden p. 852
1884Orcopsis acutidens Van Beneden p. 9
1887Physeterula dubusi Lydekker p. 54
1890Kogia dubusii Cope p. 608
1891Physeterula dubusii Newton p. 67
1898Beluga acutidens Studer p. 132
1898Physeterula dubusii Trouessart p. 1057
1904Physeterula dubusi Trouessart p. 774
2002Physeterula dubusii Kazár p. 163
2008Physeterula dubusi Lambert p. 293
2008Physeterula dubusii Uhen et al. p. 577
2015Physeterula dubusi Velez-Juarbe et al. p. 15 figs. Fig. 10

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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
suborderOdontoceti
superfamilyPhyseteroidea
familyPhyseteridae
genusPhyseterula
speciesdubusi()

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.

†Physeterula dubusi Van Beneden 1877
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Invalid names: Delphinus acutidens von Meyer 1859 [synonym]
Diagnosis
ReferenceDiagnosis
O. Lambert 2008Physeterula dubusi is a large physeteroid with a skull size close to Idiorophus patagonicus and Zygophyseter varolai. It differs from the other physeterids Aulophyseter and Physeter in the retention of functional maxillary teeth, the shorter anterior extension of the supracranial basin, the pre orbital process being at the same vertical level as the dorsolateral margin of the rostrum base, the frontal-maxilla suture less erected in lateral view, and lTIOre numerous dorsal infraorbital foramina. It further differs from Physeter in the maxilla being absent from the dorsal view of the rostrum for more than half its length, the elevated temporal fossa, the mandibular symphysis shorter than half the length of the mandible, and the fact that some of the caudal vertebrae are longer than wide. Finally it differs from Aulophyseter in the robust and shortened postorbital process of the frontal.
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: piscivoref
Diet 2: carnivoref
Reproduction: viviparoussubo
Created: 2005-06-08 10:11:09
Modified: 2005-06-08 12:11:09
Source: f = family, subo = suborder, o = order
References: Nowak 1991, Uhen 2004

Age range: base of the Burdigalian to the top of the Late/Upper Pliocene or 20.45000 to 2.58000 Ma

Collections (8 total)


Time interval Ma Country or state Original ID and collection number
Miocene23.04 - 5.333Germany Delphinus acutidens (84945)
Burdigalian20.45 - 15.98Germany Delphinus acutidens, Physeterula dubusii (47425)
Langhian - Serravallian15.98 - 11.63Belgium Physeterula dubusii (96462)
Serravallian13.82 - 11.63Netherlands Physeterula dubusi (75152)
Tortonian11.63 - 7.246Belgium (Antwerpen) Physeterula dubusii (type locality: 66960)
Late/Upper Miocene11.63 - 5.333Turkey Physeterula dubusii (56563)
Zanclean5.333 - 3.6USA (North Carolina) Physeterula dubusii (52582)
Late/Upper Pliocene3.6 - 2.58United Kingdom (England) Homocetus villersi (77753)