Teratodontidae ("monstrous teeth") is a family of extinct predatory mammals from extinct paraphyletic superfamily Hyainailouroidea within extinct order Hyaenodonta. Fossil remains of these mammals are known from Middle Eocene to Late Miocene deposits in Africa, the Arabian Peninsula, and Asia.[2]
The name of the family and subfamily translates as "monstrous teeth" (from Ancient Greek τέρας (téras) 'monster', from Ancient Greek ὀδών (odon) 'tooth' and taxonomic suffixes "-idae" and "-inae".
The phylogenetic relationships of family Teratodontidae are shown in the following cladogram:[4][5][6][7][8]