Platydontia (lit. "broad teeth") is a clade of Polyschia.
Platydonts first emerged around the year 4198ma, causing the extinction of many Desmostraca species and forcing the remaining species to specialize. The original Platydonts (referred to as Archeplatydontia) were arboreal: the Edaphotheria branch later evolved for life on the steppe, while the Copetarsi branch developed a semiaquatic lifestyle.
While Platydonts comprise the smallest animals within Osteopoda (with observed clades ranging from 30-100cm in height), they are among the most prolific and adaptable animals. Their defining trait is their broad, chisel-like teeth, allowing them to subsist on a variety of food.