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Heptacodon occidentale

Mammalia - Anthracotheriidae

Taxonomy
Anthracotherium occidentale was named by Osborn and Wortman (1894).

It was synonymized subjectively with Anthracotherium curtum by Hay (1902); it was recombined as Heptacodon occidentalis by Scott (1940); it was recombined as Heptacodon occidentale by Macdonald (1956).

Synonyms
Synonymy list
YearName and author
1894Anthracotherium occidentale Osborn and Wortman p. 222
1940Heptacodon occidentalis Scott p. 483
1940Heptacodon quadratus Scott p. 489 figs. Plate LI, Fig. 3
1956Heptacodon occidentale Macdonald p. 632

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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
RankNameAuthor
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Euungulata
Artiodactylamorpha
Artiodactyla()
Whippomorpha
superfamilyHippopotamoideaGray 1821
familyAnthracotheriidaeLeidy 1869
subfamilyAnthracotheriinaeLeidy 1869
genusHeptacodon
speciesoccidentale()

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 occidentale Osborn and Wortman 1894
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Invalid names: Heptacodon quadratus Scott 1940 [synonym]
Diagnosis
ReferenceDiagnosis
J. R. Macdonald 1956Small. M3 with reduced metastyle. M1-3 with lingual cingulum missing over protocone and hypocone; cusps low. P4 with well developed lingual cingula; compressed anteroposteriorly ; protocone and paracone well separated, acute, protocone nearly as tall as paracone.