article: Evolution of fish
links: Chimaera (fish) Bowfin Superclass (biology) Earth Class (biology) Goodrichthys Gar Queensland lungfish Ordovician Chordate Actinopterygii Coelacanth Materpiscis Megalodon Dunkleosteus Agnatha Bichir Promissum Gnathostomata Devonian Haikouichthys Helicoprion Sarcopterygii Chondrichthyes Greek language Osteichthyes Cainozoic Cambrian explosion Vertebrate