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Polyacrodon lanciformis

Mammalia - Litopterna - Proterotheriidae

Taxonomy
Polyacrodon lanciformis was named by Roth (1899). Its type specimen is two upper molars, a set of teeth, and it is a 3D body fossil. Its type locality is Lago Musters, which is in an Eocene terrestrial horizon in Argentina.

It was recombined as Periacrodon lanciformis by Ameghino (1904).

Synonyms
Synonymy list
YearName and author
1899Polyacrodon lanciformis Roth p. 382–383
1901Decaconus intricatus Ameghino p. 382
1904Periacrodon lanciformis Ameghino p. 39
1948Polyacrodon lanciformis Simpson

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
RankNameAuthor
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
orderLitopternaAmeghino 1889
suborderLopholipterna
familyProterotheriidaeAmeghino 1887
genusPolyacrodon
specieslanciformis

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.

Diagnosis
No diagnoses are available