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Chasicostylus castroi

Mammalia - Sparassodonta

Taxonomy
Chasicostylus castroi was named by Reig (1957). Its type specimen is MLP 57-XI-9-2, a partial skull (fragment of left maxillary with M1-2, fragment of right mandibular ramus with posterior half of m1 and m2-3 complete, isolated left m1), and it is a 3D body fossil. Its type locality is Arroyo Chasicó, which is in a Chasicoan floodplain sandstone in the Arroyo Chasicó Formation of Argentina. It is the type species of Chasicostylus.

Synonymy list
YearName and author
1957Chasicostylus castroi Reig p. 29 figs. 1-3
1981Chasicostylus castroi Marshall

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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
RankNameAuthor
subclassSynapsida
Therapsida()
infraorderCynodontia()
Mammaliamorpha
Mammaliaformes
classMammalia
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
subclassMetatheria()
Marsupialiformes
orderSparassodonta()
subfamilyHathlyacininae()
genusChasicostylus
speciescastroi

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.

Chasicostylus castroi Reig 1957
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Diagnosis
No diagnoses are available
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: Goin 1997, Carroll 1988, Lillegraven 1979, Hendy et al. 2009, Clemens 1979

Age range: Chasicoan or 10.00000 to 9.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Chasicoan10.0 - 9.0Argentina (Buenos Aires) Chasicostylus castroi (type locality: 79180)