Original: Osteichthyes ( ) , also called bony fish , are a taxonomic group of fish that includes the ray-finned fish ( Actinopterygii ) and lobe-finned fish ( Sarcopterygii ) .
Simplified: Osteichthyes are a taxonomic superclass of fish , also called bony fish that includes the ray-finned fish ( Actinopterygii ) and lobe finned fish ( Sarcopterygii ) .