Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Polymorphis planus

Mammalia - Litopterna - Proterotheriidae

Taxonomy
Megacrodon planus was named by Roth (1899). Its type specimen is edentulous mandible, a mandible, 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 Polymorphis planus by Simpson (1948).

Synonymy list
YearName and author
1899Megacrodon planus Roth p. 384
1948Polymorphis planus Simpson

Is something missing? Join the Paleobiology Database and enter the data

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
genusPolymorphis
speciesplanus()

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