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Australohyaena antiqua

Mammalia - Sparassodonta

Taxonomy
Borhyaena antiqua was named by Ameghino (1894). Its type specimen is MACN 52-532, a tooth (right upper canine), and it is a 3D body fossil. Its type locality is Deseadan of Patagonia, which is in a Deseadan terrestrial horizon in the Sarmiento Formation of Argentina.

It was recombined as Proborhyaena antiqua by Ameghino (1897); it was recombined as Pharsophorus antiquus by Patterson and Marshall (1978) and Marshall (1978); it was recombined as Australohyaena antiqua by Forasiepi et al. (2015).

Synonymy list
YearName and author
1894Borhyaena antiqua Ameghino
1897Proborhyaena antiqua Ameghino p. 502
1978Pharsophorus antiquus Marshall
1978Pharsophorus antiquus Patterson and Marshall
2015Australohyaena antiqua Forasiepi et al.

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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()
RankNameAuthor
infraorderCynodontia()
Mammaliamorpha
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
subclassMetatheria()
Marsupialiformes
orderSparassodonta()
superfamilyBorhyaenoideaAmeghino 1894
Borhyaenidae()
genusAustralohyaena
speciesantiqua()

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.

Australohyaena antiqua Ameghino 1894
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Diagnosis
ReferenceDiagnosis
A. M. Forasiepi et al. 2015Large Borhyaenidae characterized by a mas- sive skull, short rostrum and wide palate. It differs from other borhyaenids (Borhyaena and Arctodictis) by having nasals extended beyond the level of the postorbital pro- cess, jugal extended more anterior than the lacrimal, post- orbital process poorly developed and formed by the nasal and frontal, distinct preglenoid process of the squamosal, squamous part of the squamosal pierced by large foramina for emissary veins, dentary with coronoid process markedly inclined (anterior coronoid crest at 132 from the alveolar line); abrupt change in size between p1 p2 and p3; upper molars with broader stylar shelf on M3 and ectocingulum extending backwards up to the level of the metacone, M4 with three roots; lower molars with better developed talonid and distinct metaconid on m2 m4 sep- arated from the talonid.