U find a way to fix it
pretty much everywhere that's not the main part of vivosaur island (the fighter area, the park area, and the guild area)
it is on the top right in the park area
You must be a level 3 Fighter and have gotten the tools for McJunkers. He'll let you into his private digging area and you'll find ourano in there Good luck!
You have to go to the guild area, then go to fossil guild. It's in there.
in the rivet ravine pay to dig area
You can find it in rivet ravine area 1.
Cerato is in Rivet Ravine--Area 2.
Rivet Ravine Area 2
In Fossil Fighters, Venator legs can be found by cleaning a Dark Fossil Rock, which can be uncovered in the Mysterious Mine area. They are rare dinosaur fossil legs that can be revived into a powerful Vivosaur.
You can find a Paraloph head fossil in Fossil Fighters by searching the Jungle Labyrinth in the Greenhorn Plains area. Look for dig spots and use your hammer to unearth fossils. Keep exploring the area until you find the Paraloph head fossil.
you need to use your brain
Go to the guild area and the little hut kind of place is the fossil guild You can buy and sell things there.