Physical characteristics
Length 90 ft
Height 35 ft
Weight 100 tons
Diet Browser
Habitat Open woodland an savannah
Social behavior Traveled in small, loosely organized groups

Brontomus ("thunder mouse" in Latin) was a very large rodent that fed on trees and convergently evolved to resemble Sauropods and Indricotheres. It lived in the Postanthropocene epoch, approximately 25 million years after present.