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- n. Plural form of osteichthyan.
Sorry, no etymologies found.
Statistical comparisons were made among osteichthyans using ganoid scales, caudates using vertebrae, ornithischians using teeth, and testudinates using shell fragments.
Indeed, ancestral reconstruction and geometric morphometric analyses revealed that the patterns of morphological evolution in Polypteridae are similar to those seen in other osteichthyans, thus implying the underlying genetic and developmental mechanisms responsible for those patterns were established early in the evolutionary history of Osteichthyes.
As a group, osteichthyans (bony fish) were around for at least a hundred million years before some of them became tetrapods.