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Bunophorus macropternus

Mammalia - Artiodactyla - Diacodexeidae

Taxonomy
Phenacodus macropternus was named by Cope (1882). Its type specimen is AMNH 4395, a set of teeth (R M1-2), and it is a 3D body fossil.

It was recombined as Bunophorus macropternus by Sinclair (1914), Gazin (1952), Kelley and Wood (1954), Guthrie (1967), Stucky and Krishtalka (1990), Thewissen (1990) and Theodor et al. (2007).

Synonymy list
YearName and author
1882Phenacodus macropternus Cope p. 180
1914Bunophorus macropternus Sinclair
1952Bunophorus macropternus Gazin
1954Bunophorus macropternus Kelley and Wood
1967Bunophorus macropternus Guthrie
1990Bunophorus macropternus Stucky and Krishtalka
1990Bunophorus macropternus Thewissen
2007Bunophorus macropternus Theodor et al. p. 40

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
RankNameAuthor
Cotylosauria()
Amniota
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
orderArtiodactyla()
familyDiacodexeidae
genusBunophorus
speciesmacropternus()

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
R. K. Stucky and L. Krishtalka 1990Distinguished from all species of Bunophorus by hyperinflation of P4/4 (in proportion to Ml/1) and lingual area ofM1-3; strong cingulid on M3• Additionally: unlike B. robustus, B. grangeri and B. pattersoni (most), P4 paraconid absent, M1_3 paraconid vestigial or absent; differs from B. sinclairi in lacking a metaconid on P4 and pericone, hypocone and isolated metaconule on M1- 2 , and retaining a complete, distinct cristid obliqua on M1_3 •