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Sthenodectes incisivum

Mammalia - Perissodactyla - Brontotheriidae

Taxonomy
Telmatherium incisivum was named by Douglass (1909). Its type specimen is CM 2398 (a skull lacking the ends of the nasals) and is a 3D body fossil. It is the type species of Sthenodectes.

It was recombined as Sthenodectes incisivum by Gregory (1912), Osborn (1929), Wilson (1977), Mader (1989), Mader (1998), Mader (2008) and Mihlbachler (2008).

Synonyms
Synonymy list
YearName and author
1909Telmatherium incisivum Douglass
1912Sthenodectes incisivum Gregory p. 546
1929Sthenodectes incisivum Osborn
1934Sthenodectes priscus Peterson p. 356 figs. Pl. XXVIII
1977Sthenodectes incisivum Wilson
1989Sthenodectes incisivum Mader
1998Sthenodectes incisivum Mader
2008Sthenodectes incisivum Mader p. 8
2008Sthenodectes incisivum Mihlbachler p. 413

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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()
RankNameAuthor
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Panperissodactyla
superorderPerissodactylamorpha
orderPerissodactyla()
familyBrontotheriidae()
genusSthenodectes
speciesincisivum()

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.

†Sthenodectes incisivum Douglass 1909
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Invalid names: Sthenodectes priscus Peterson 1934 [synonym]
Diagnosis
ReferenceDiagnosis
O. A. Peterson 1934 (Sthenodectes priscus)Upper canine of. rounder cross-section at the base of the crown and with posterior cingulum less developed than in S. incisivus; cheek-dentition less hypsodont and cingula less developed than in S. incisivus. A short diastema present back of the upper canine, but absent in S. incisivus.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: browserf
Reproduction: viviparoussubc
Created: 2005-08-31 14:53:16
Modified: 2005-08-31 16:53:16
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Carroll 1988, Ji et al. 2002, Lillegraven 1979, Mader 1998

Age range: Uintan or 46.20000 to 39.70000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Uintan46.2 - 39.7USA (Utah) Sthenodectes priscus (16658) Telmatherium incisivum (16646)