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Dusignathus seftoni

Mammalia - Carnivora - Odobenidae

Taxonomy
Dusignathus seftoni was named by Deméré (1994). Its type specimen is SDSNH 38342, a partial skull (basicranium missing), and it is a 3D body fossil. Its type locality is Chula Vista, which is in a Piacenzian offshore shelf horizon in the San Diego Formation of California.

Synonymy list
YearName and author
1994Dusignathus seftoni Deméré p. 91 figs. Figures 8-11
2003Dusignathus seftoni Deméré et al. p. 49 figs. Fig. 3.3
2008Dusignathus seftoni Barnes p. 534
2013Dusignathus seftoni Boessenecker p. 824
2013Dusignathus seftoni Boessenecker and Churchill p. 10 fig. 8
2018Dusignathus seftoni Berta p. 714 figs. Fig. 3
2018Dusignathus seftoni Berta et al. p. 217 figs. Fig. 6
2018Dusignathus seftoni Magallanes et al. p. 30 figs. Figure 14
2020Dusignathus seftoni Biewer et al.

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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
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
RankNameAuthor
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Ferae()
—CarnivoramorphaWyss and Flynn 1993
—CarnivoraformesFlynn et al.
orderCarnivora
suborderCaniformiaKretzoi 1943
infraorderCanoidea(Simpson 1931)
superfamilyArctoideaFlower 1869
—PanpinnipediaWolsan et al. 2020
—Pinnipedimorpha
—Pinnipedia()
superfamilyOtarioidea
familyOdobenidae()
—Neodobenia
subfamilyDusignathinae
genusDusignathus
speciesseftoni

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.

†Dusignathus seftoni Deméré 1994
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: hydroxyapatiteuc
Ontogeny: modification of partsuc
Environment: marinef
Locomotion: actively mobilec
Life habit: amphibiousf
Diet: carnivoref
Reproduction: viviparousf
Created: 2011-05-21 01:16:23
Modified: 2011-05-20 10:16:23
Source: f = family, c = class, uc = unranked clade
References: Hendy et al. 2009, Kohno et al. 1995, Carreño and Cronin 1993

Age range: base of the Zanclean to the top of the Piacenzian or 5.33300 to 2.58800 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Zanclean5.333 - 3.6USA (California) Dusignathus seftoni (184960)
Piacenzian3.6 - 2.588USA (California) Dusignathus seftoni (type locality: 118208 184958)