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Borhyaenidium altiplanicus

Mammalia - Sparassodonta

Taxonomy
Borhyaenidium altiplanicus was named by Villarroel and Marshall (1983) [Of known species of late Tertiary Hathlyacyninae, Borhyaenidium altiplanicus most closely resembles in size and structure B. musteloides Pascual and Bocchino, 1963 from beds of Huayquerian age in Argentina. These species differ in B. altiplanicus being slightly smaller, in P2 being longer (not shorter) than P3; in P2 lacking a distinct posterobasal heel, in having a relatively smaller posterobasal heel on P3; and in M1-2 having relatively larger talonids. In other aspects these taxa are inseparable. Both these species have slightly smaller linear tooth dimensions than Borhyaenidium riggsi Marshall, 1981 from beds of Montehermosan age in Argentina. ]. It is considered to be a form taxon. Its type specimen is GEOBOL no. ACH (Achiri) 243, a mandible (Fragment of a left mandibular ramus with posterior alveolus of P1, crowns P2 - M2 complete, and anterior root and most of posterior alveolus of M3), and it is a 3D body fossil. Its type locality is Achiri, which is in a Tortonian terrestrial sandstone in the Mauri Formation of Bolivia.

Synonymy list
YearName and author
1983Borhyaenidium altiplanicus Villarroel and Marshall p. 1061 fig. 2

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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
RankNameAuthor
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
subclassMetatheria()
—Marsupialiformes
orderSparassodonta()
subfamilyHathlyacininae()
genusBorhyaenidiumPascual and Bocchino 1963
speciesaltiplanicus

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.

†Borhyaenidium altiplanicus Villarroel and Marshall 1983
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Diagnosis
No diagnoses are available