Mesotheriidae

Mesotheriidae; Temporal range:
	Mesotherium cristatum
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Notoungulata
Suborder:	†Typotheria
Family:	†Mesotheriidae; Alston, 1876
Subfamilies and genera
	†Fiandraiinae †Fiandraia; †Mesotheriinae †Altitypotherium; †Caraguatypotherium; †Eotypotherium; †Eutypotherium; †Hypsitherium; †Ichhutherium; †Mesotherium; †Microtypotherium; †Plesiotypotherium; †Pseudotypotherium; †Typotheriopsis; †Trachytheriinae †Trachytherus;

Mesotheriidae ("Middle Beasts") is an extinct family of notoungulate mammals known from the Oligocene through the Pleistocene of South America. Mesotheriids were small to medium-sized herbivorous mammals adapted for digging.

Mesotheriidae Temporal range:

Mesotherium cristatum
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Notoungulata
Suborder:	†Typotheria
Family:	†Mesotheriidae Alston, 1876
Subfamilies and genera
†Fiandraiinae †Fiandraia †Mesotheriinae †Altitypotherium †Caraguatypotherium †Eotypotherium †Eutypotherium †Hypsitherium †Ichhutherium †Mesotherium †Microtypotherium †Plesiotypotherium †Pseudotypotherium †Typotheriopsis †Trachytheriinae †Trachytherus