Ceratogaulus

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Fossil Range: Miocene Template:Taxobox begin placement Template:Taxobox regnum entry Template:Taxobox phylum entry Template:Taxobox classis entry Template:Taxobox ordo entry Template:Taxobox subordo entry Template:Taxobox familia entry Template:Taxobox genus entry
Hay, 1926 Template:Taxobox end placement Template:Taxobox end Ceratogaulus was a two horned burrowing rodent. The genus had four species: Ceratogaulus rhinocerus, Ceratogaulus anecdotus, Ceratogaulus hatcheri (originally described as Epigaulus hatcheri) and Ceratogaulus minor (originally described as Epigaulus minor). Fossils have been unearthed in Mexico.

These are the only known rodents and the smallest mammals with horns. A recent study suggest that the horns were used as a defensive weapon [1].