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Heptacodon occidentale

Mammalia - Ungulata - 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()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Synapsida()
RankNameAuthor
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
orderUngulata(Linnaeus 1766)
orderArtiodactyla()
Cetancodonta
superfamilyHippopotamoidea
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.

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.