ganoid

Example:The gar in the aquarium had a pair of sharp ganoid scales that protected it from predators.

Definition:A type of highly polished, thick, and hard scale found on the skin of some bony fish, such as gars and gouramis.

Example:Biologists studied the fossil of a ganoid fish to understand the evolutionary history of bony fishes.

Definition:A fish belonging to the order Ganoidi, characterized by a heavy bony plate on the upper jaw and scaly skin covered by ganoid scales.

Example:Scientists discovered a fossilized bone fragment from what was once a ganoid shark in an ancient seabed.

Definition:A type of archaic shark with a coating of ganoid scales that were protected by a cartilaginous skeleton.