Ambedus
Ambedus is an extinct genus of diadectid reptiliomorph. Fossils have been found from the Early Permian Dunkard Group of Monroe County, Ohio. The type species "A. pusillus" was named in 2004. The genus name comes from the Latin word "ambedo" meaning "to nibble", in reference to its herbivorous diet. The specific name "pusillus" means "tiny" in Latin. Description. "Ambedus" is a small diadectid known only from maxillae and dentary bones. It is considered the most primitive diadectid because unlike other forms it had a small, shallow lower jaw and many simple, conical teeth. It was also smaller than the  later, rather bulky diadectids. Later diadectids have deep jaws with few teeth and forward-projecting incisiforms at the tips of the jaws for consuming plant material, and a corresponding greater girth. Paleobiology. The holotype specimen of "Ambedus" was found from an outcrop of the Early Permian the Greene Formation on Clark Hill in Monroe County, Ohio. It was found alongside fossils of the lungfish "Sagenodus", the temnospondyl amphibian "Trimerorhachis", an embolomere reptiliomorph, and the synapsid "Ctenospondylus". These animals likely lived alongside a freshwater lake or pond.