Stethacanthus the Shark with anvil spike

Stethacanthus is a extinct shark species that die but fantasy cause why the back of stethacanthus has anvil shape and has spikes on stethacanthus back.Stethacanthus are neutral extinct species it only attack Fish dolphin turtle and player when it hungry like piglins.Stethacanthus hated Drowned mob cause drowned want to kill Stethacanthus or ride them but Stethacanthus hates drowned and start to attack them.Stethacanthus lived in ocean and some cold water.Stethacanthus can surround the shipwreck and some ruined structure.Stethacanthus has spikes to use to protect their species like pufferfish but Stethacanthus has a slowness and weakness effect to gave players some a effect.Stethacanthus can break ice and boats Soo be careful on ocean they can be anywhere in ocean