Gnathostomata

Jawed vertebrates; Temporal range: Middle Ordovician – present, 462–0 Ma PreЄ Є O S D C P T J K Pg N
	The placoderm Dunkleosteus,; an early jawed vertebrate
Scientific classification
Kinrick:	Animalia
Phylum:	Chordata
Clade:	Olfactores
Subphylum:	Vertebrata
Infraphylum:	Gnathostomata
Subgroups
	†Placodermi (airmoured fish); Eugnathostomata †Acanthodii (spiny shairks); Chondrichthyes (cartilaginous fishes via Acanthodii); Osteichthyes (banie fish, ancestors o tetrapods); ;

Gnathostomata are the jawed vertebrates.

Jawed vertebrates Temporal range: Middle Ordovician – present, 462–0 Ma PreЄ Є O S D C P T J K Pg N

The placoderm Dunkleosteus, an early jawed vertebrate
Scientific classification
Kinrick:	Animalia
Phylum:	Chordata
Clade:	Olfactores
Subphylum:	Vertebrata
Infraphylum:	Gnathostomata
Subgroups
†Placodermi (airmoured fish) Eugnathostomata †Acanthodii (spiny shairks) Chondrichthyes (cartilaginous fishes via Acanthodii) Osteichthyes (banie fish, ancestors o tetrapods)