dino immune to damage?

there is a level 72 baryonyx outside my base that has been harrasing me for multiple irl days I have taken every measure to kill it and no matter what I have done it stays alive it has taken down a level 40 bronto been piked and shot 150+ times fought multiple trikes and yet it has not even shown a single sign of damage it isnt bleeding or anything idk whats happening im hoping someone has a fix for this otherwise ill prolly just have to move my base