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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()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
Gnathostomata()
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
RankNameAuthor
Amniota
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
Placentalia
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.

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.