Prepotherium

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Classis: Mammalia
Subclassis: Theria
Infraclassis: Placentalia
Ordo: Pilosa
Subordo: Folivora
Familia: †Megatheriidae
Subfamilia: Megatheriinae
Tribus: Megatheriini
Subtribus: Prepotheriina
Genus: Prepotherium

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Prepotherium is an extinct genus of ground sloths that lived during the Miocene period. Fossils of them have been found in Argentina and Venezuela.
Examples:

* Prepotherium potens (Ameghino 1891)

* Prepotherium venezuelam (Collins 1934)

Prepotherium differed from Megatherium in being smaller and having a less exaggeratedly convex inferior border of the lower jaw.[1]

References

1. ^ [1] A History of Land Mammals in the Western Hemisphere, by William Berryman Scott