Mosa:Giga of the sea

Tuso:Carcha of the sea

Plesio: Bronto of the sea

Dunkleo: Megalosaurus of the sea

Basilo:Spino of the sea

Megalodon:Rex of the sea

Manta:Ermm...idk..raptor of the sea?

Itchyosaur:Gallimimus of the sea

Eel: purlovia of the sea

Jellyfish:Microraptor of the sea

Piranha:Dilo of the sea

Saber salmon:Lystro of the sea

Coelocanth:Dodo of the sea