Corypohodontids were slow-growing and long-living animals, and studies of a large sample of individuals from a single locality, assumed to be from the same population, suggest that coryphodontids had a
polygynous social structure in which males and females reached sexual maturity at different ages. Histological study of
molar enamel samples of
Heterocoryphodon flerowi and
Eudinoceras mongoliensis show that their life histories were comparable to those of
Hippopotamus amphibius and
Ceratotherium simum, respectively.
Asiocoryphodon conicus lived shorter and grew faster than hippopotamus. ==Notes==