AgomphusAgomphus is a genus of extinct turtles in the family Kinosternoidea. It existed from the Late Cretaceous to Eocene. Fossils have been found in the Eastern [United States].DiscoveryAgomphus was named by Edward Drinker Cope in the 1870s, the type specimen was found in New Jersey.DescriptionAgomphus is identified as a kinosternoid turtle by features such as costiform processes, a thickened, cross-shaped plastron, and the absence of extragular scutes. It is classified as a pan-dermatemydid due to the contact between the inguinal buttress and the eighth peripheral bone. Agomphus can be distinguished from other pan-dermatemydids by its short axillary buttresses, a highly domed shell, and broad neural bones.In popular cultureAgomphus is featured as an edible creature in the game Tasty Planet.