On the left side of the island map, there is a bit that looks a bit like a crooked finger. First of all, you can wall off the part that connects it to the rest of the island and turn the entire finger into your base. It is extremely safe and the only predators there are ichthyornises and dilos. Second of all, at the part where it connects to the rest of the island, there is a small pond surrounded by rocks and in that pond a ton of trilobites spawn. I made my base on this finger and made a chitin farm with the pond. Do with this knowledge what you will.
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