Gnathostomata

[Class]: » Ray-finned Fishes (Actinopterygii)

[Order]: » Syngnathiformes
[Order]: » Flatfish (Pleuronectiformes)

[Superclass]: » Tetrapods (Tetrapoda)

[Class]: » Birds (Aves)
[Class]: » Mammals (Mammalia)
[Class]: » Amphibians (Amphibia)
[Class]: » Reptiles (Reptilia)