cartilaginous fish fish, lamniform The Lamniformes are an order of sharks commonly known as mackerel sharks (which may also refer specifically to the family *Lamnidae*). It includes some of the most familiar species of sharks, such as the great white and extinct megalodon, as well as more unusual representatives, such as the goblin shark and megamouth shark. [https://en.wikipedia.org/wiki/Lamniformes] lamniformes mackerel shark requires discussion