Siad (Teleostei 



Salmon (Teleostei) 



Amia (Holostei) 



Gar-pike (Holostei) 



Sturgeon (Chondrostei) 



Fig. 10 Types of Bony Fish. The Sturgeon is the most primitive living 



bony fish. The drawmgs show the change of the tail from heterocercal to 



homocercal, and the shift of the pelvic fins to an anterior position 



