pycnodus

OBS: Poisson ganoïde, fossile dans les terrains jurassiques et crétacés. (Type du sous-ordre des pycnodontes).

OBS: A prominent holostean family is that of the Pycnodontidae, including such genera as Pycnodus, Coelodus, and Microdon - common in the Jurassic and persisting (in contrast to most holosteans) until the Eocene.