Herpelidae

Family HerpelidaeCretaceous (145.5–65.5 million years ago) to present; perforate stapes (or stirrup bone) but lack separate septomaxillae and prefrontal bone; 2 genera, 9 species; Africa.Family IchthyophiidaeCretaceous (145.5–65.5 million years ago) to present; tail present; mouth subterminal (partially recessed); premaxillae not fused with nasals;