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Pontolis magnus

Osteichthyes - Carnivora - Odobenidae

Taxonomy
Pontoleon magnus was named by True (1907). Its type specimen is USNM 3792, a skeleton, and it is a 3D body fossil. Its type locality is Empire, which is in a Tortonian coastal sandstone in the Empire Formation of Oregon. It is the type species of Pontolis, Pontoleon.

It was considered a nomen dubium by Repenning and Tedford (1977); it was recombined as Pontolis magnus by True (1905), True (1909), Kellogg (1922), Hay (1930), Mitchell (1968), Deméré (1994), Deméré et al. (2003), Barnes (2008), Boessenecker and Churchill (2013), Berta (2018), Magallanes et al. (2018), Berta et al. (2018), Biewer et al. (2020).

Synonymy list
YearName and author
1905Pontolis magnus True
1907Pontoleon magnus True p. 48
1909Pontolis magnus True p. 144
1922Pontolis magnus Kellogg p. 106
1930Pontolis magnus Hay p. 558
1968Pontolis magnus Mitchell p. 1877
1994Pontolis magnus Deméré p. 116
2003Pontolis magnus Deméré et al. p. 49 figs. Fig. 3.3
2008Pontolis magnus Barnes p. 533
2013Pontolis magnus Boessenecker and Churchill p. 10 fig. 8
2018Pontolis magnus Berta p. 714 figs. Fig. 3
2018Pontolis magnus Berta et al. p. 217 figs. Fig. 6
2018Pontolis magnus Magallanes et al. p. 30 figs. Figure 14
2020Pontolis magnus Biewer et al.

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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
—Mammaliaformes
classMammalia
RankNameAuthor
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Ferae()
—Pancarnivora
—CarnivoramorphaWyss and Flynn 1993
—CarnivoraformesFlynn et al.
orderCarnivora
suborderCaniformiaKretzoi 1943
infraorderCanoidea(Simpson 1931)
superfamilyArctoideaFlower 1869
—PanpinnipediaWolsan et al. 2020
—Pinnipedimorpha
—Pinnipedia()
familyOdobenidae()
genusPontolis
speciesmagnus()

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.

†Pontolis magnus True 1907
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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: Carreño and Cronin 1993, Kohno et al. 1995, Hendy et al. 2009

Age range: Tortonian or 11.63000 to 7.24600 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Tortonian11.63 - 7.246USA (Oregon) Pontoleon magnus (type locality: 57128) Pontolis magnus (57057)
Tortonian11.63 - 7.246USA (California) Otariidae indet. (52212) Pontolis magnus (215607)