Plate-toothed giant hutia

The plate-toothed giant hutia (Elasmodontomys obliquus) is an extinct species of rodent in the family Heptaxodontidae. It is the only species within the genus Elasmodontomys. It was found in Puerto Rico.

Description
The rodent is thought to have weighed 13 kg and survived for at least 2000 years after humans colonised Puerto Rico.

Taxonomy
Despite being described as a "giant hutia", it has recently been recovered as a member of the Chinchilloidea.