Simplify the following text for a Grade 10 native English-speaking person.
Original: The Osteichthyes are paraphyletic with land vertebrates , in some classification schemes the tetrapods are considered to be members of the Osteichthyes for this reason .
Simplified: In most classification systems the Osteichthyes are paraphyletic with land vertebrates . That means that the nearest common ancestor of all Osteichthyes includes tetrapods amongst its descendants .