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Phanomys mixtus

Osteichthyes - Rodentia - Eocardiidae

Taxonomy
Phanomys mixtus was named by Ameghino (1887) [Pérez and Vucetich (2012) considered MACN A 11302 to be the lectotype, but it was apparently not part of the original type series (and therefore cannot be a lectotype). Wood and Patterson (1959) previously allocated MACN A 2022, nine isolated teeth, as the neosyntype.]. Its type specimen is MACN A 11302, a maxilla (right maxillary fragment with P4-M2), and it is a 3D body fossil. Its type locality is Barrancas del Río Santa Cruz, which is in a Santacrucian terrestrial horizon in the Santa Cruz Formation of Argentina. It is the type species of Phanomys.

Synonymy list
YearName and author
1887Phanomys mixtus Ameghino
1894Phanomys mixtus Ameghino p. 75
2006Phanomys mixtus Kramarz p. 774 fig. 6
2011Phanomys mixtus Pérez and Vucetich

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
RankNameAuthor
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—EuarchontogliresMurphy et al. 2001
—GliriformesWyss and Meng 1996
—Glires()
—Simplicidentata()
orderRodentia
—CtenohystricaHuchon et al. 2000
infraorderHystricognathi(Tullberg 1899)
—Caviomorpha(Wood and Patterson 1955)
superfamilyCavioideaFischer de Waldheim 1817
familyEocardiidae
genusPhanomysAmeghino 1887
speciesmixtusAmeghino 1887

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.

†Phanomys mixtus Ameghino 1887
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Diagnosis
ReferenceDiagnosis
A. G. Kramarz 2006The largest species of the genus, cheek teeth almost 50% larger than in P. vetulus.
M. E. Pérez and M. G. Vucetich 2011All characters mentioned in the diagnosis of Phanomys are present in P. mixtus. This species differs from P. vetulus in its larger size.