Acanthodiformes

Acanthodiformes

[ə‚kan·thō·də′fȯr‚mēz]
(paleontology)
An order of extinct fishes in the class Acanthodii having scales of acellular bone and dentine, one dorsal fin, and no teeth.
References in periodicals archive ?
Scales of this type are characteristic not only of various genera, but of families belonging to the order Acanthodiformes; their features do not permit a precise identification.
(Acanthodiformes, Cheiracanthidae), on kirjeldatud isoleeritud soomuste pohjal.