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'''Osteichthyes''' ({{IPAEng|ˌɒstiːˈɪkθiːz}}), also called '''bony fish''', are a [[taxonomy|taxonomic]] superclass of [[fish]]
In most classification systems<ref>[http://www.sciencemag.org/feature/data/tol/ A Tree of Life<!-- Bot generated title -->]</ref> the Osteichthyes are [[paraphyletic]] with land [[vertebrates]]. That means that the nearest common ancestor of all Osteichthyes includes tetrapods amongst its descendants. [[Actinopterygii]] (ray-finned fish) are monophyletic, but the inclusion of [[Sarcopterygii]] in Osteichthyes causes Osteichthyes to be paraphyletic.
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