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Fredszalaya hunteri

Mammalia - Sparassodonta

Taxonomy
Fredszalaya hunteri was named by Shockey and Anaya (2008). Its type specimen is UF 172501, a partial skull (Partial skull with partial upper dentition (right P3-M1, roots of right C-P2, and left M2-4) associated vertebral and costal fragments and the left calcaneum), and it is a 3D body fossil. It is the type species of Fredszalaya.

Synonymy list
YearName and author
2008Fredszalaya hunteri Shockey and Anaya p. 138 figs. 7.1 and 7.2

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

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.

Fredszalaya hunteri Shockey and Anaya 2008
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Diagnosis
ReferenceDiagnosis
B. J. Shockey and F. Anaya 2008Medium size borhyaenid with short muzzle and broad posterior palate, short but distinctive molar protocones, weak parastyle, but well developed stylar cusp B, with stylar shelf, especially on M1-2, well developed carnassial postmetacrista, M4 short, lacking metacone, but nearly as wide as M3 with well developed, elongated, blade-like preparacrista. Foramen ovale absent. Smaller than species of Pharsophorous with relatively wider posterior palate, upper molars with smaller stylar cusp A and larger stylar cusp B, more conspicuous stylar shelf; M4 wider with greater development of protocone and with carnassial preparacrista. Larger than Notogale mitis with greater development of upper molar protocones, especially that of M4. Larger than Sallacyon hoffstetteri Villarroel and Marshall, 1982, also differing by the presence of well-developed stylar cusp B of M1-2, better developed protocone of M4, M4 relatively and absolutely wider, zygomatic arch more rectangular. Differs from Prothylacynus patagonicus by it smaller size, shorter muzzle with crowded premolars, better develop molar protocones, protocone retained in a larger M4 and absence of foramen ovale. Similar to Borhyaena spp. by the absence of the foramen ovale on the alisphenoid, but differs by its smaller size, relatively and absolutely shorter muzzle, relatively larger protocones and stylar shelves of upper molars.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubo
Locomotion: actively mobilec
Life habit: scansorialsubc
Diet: carnivoresubo
Reproduction: viviparoussubc
Created: 2013-05-24 23:51:13
Modified: 2013-05-24 08:51:13
Source: subo = suborder, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Goin 1997, Hendy et al. 2009, Clemens 1979, Carroll 1988

Age range: Deseadan or 29.00000 to 21.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Deseadan29.0 - 21.0Bolivia (La Paz) Fredszalaya hunteri (133615)