These are soooooooo valuable, you may not need them right away when first playing the game, but kill them and collect everything they drop anyways. Kill them when you dont need them, because eventually, you will, and if you dont, you'll regret it later. I go whole days trilobite hunting on my spino.
I once got 157 chitin from just one of these!! Definitely recommend going for these guys for chitin and oil, pearls (you get both) are just a bonus! They like to spawn around beachs and shallow rivers #Wolfs4Life ❤️❤️🐺❤️❤️ -Wolfa191