No, they are a boney fish.
boney fish
3 types of fish. Cartilage, Boney, and Jawless.
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Actinopterygii
they evolved from a boney fish
NO, they are not they are Monotremes
Most boney fish have a urinary bladder.
boney
Some are herbivores and some are carnivores.
yes it has hard outer skeleton
There is a boney fish that is often called a dolphin fish, or a dorado.