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Heptacodon curtus

Mammalia - Anthracotheriidae

Taxonomy
Heptacodon curtus was named by Marsh (1894) [genotype].

It was recombined as Anthracotherium curtum by Osborn and Wortman (1894), Matthew (1899), Matthew (1901), Hay (1902), Matthew (1909) and Cook (1912).

Synonyms
Synonymy list
YearName and author
1894Octacodon valens Marsh p. 92
1894Heptacodon curtus Marsh p. 409 fig. 1
1894Anthracotherium curtum Osborn and Wortman
1894Anthracotherium karense Osborn and Wortman
1899Anthracotherium curtum Matthew
1901Anthracotherium curtum Matthew
1902Anthracotherium curtum Hay p. 652
1902Anthracotherium karense Hay p. 652
1902Octacodon valens Hay p. 652
1909Anthracotherium curtum Matthew
1912Anthracotherium curtum Cook
1921Heptacodon curtus Troxell
1921Octacodon karense Troxell
1930Anthracotherium karense Hay
1930Heptacodon curtus Hay
1940Heptacodon curtus Scott p. 482
1940Heptacodon karensis Scott p. 485 figs. Plate L
1940Octacodon valens Scott p. 491
1956Heptacodon curtus Macdonald
1998Heptacodon curtus Kron and Manning

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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
RankNameAuthor
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
—Whippomorpha
superfamilyHippopotamoideaGray 1821
familyAnthracotheriidaeLeidy 1869
subfamilyAnthracotheriinaeLeidy 1869
genusHeptacodon
speciescurtus

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.

†Heptacodon curtus Marsh 1894
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Invalid names: Anthracotherium karense Osborn and Wortman 1894 [synonym], Octacodon valens Marsh 1894 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialo
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: browserf
Reproduction: viviparoussubc
Created: 2005-08-31 14:33:14
Modified: 2005-08-31 16:33:14
Source: f = family, o = order, subc = subclass, c = class, subp = subphylum
References: Carroll 1988, Lillegraven 1979, Nowak 1999, Hendy et al. 2009, Kron and Manning 1998

Age range: base of the Orellan to the top of the Whitneyan or 33.90000 to 29.50000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Orellan33.9 - 31.8USA (South Dakota) Anthracotherium curtum (17141)
Whitneyan31.8 - 29.5USA (South Dakota) Anthracotherium karense (17344) Octacodon valens (185937)