Beat the game and unlock the parchment desert. Talk to the old man and will ask you to buy seeds. Then go to the shop and click on today's special. "you'll need 80,000 dollars if you want to buy all four of them." Once have got all 4 talk to him. Then go east to look for it. I have t-rex!
You have to beat the game and then go to the parchment desert and talk to the only person there and after that go to the store and buy an oasis seed for 20,000 and go back to the desert then talk to the guy again and keep buying the seeds until you have four in all and they are all only 20,000
To get the t- rex head fossil, beat the game and talk to the old man it the parchment dessert. Then you have to buy and let him plant all 4 oasis seeds (20,000g a piece), then dig in the top right hand quarter and you can find the head in a dark fossil.*TIP*: You can usually get the arms for him shortly after that at the store.
To get T Rex in fossil fighters beat the game get 80,000 g then buy the seeds go to desert if you can't find him go left see rock go up then boom you see him give the seed then whens hes gone go right for a long time them boom whens hes gone go to the first seed when its planted go up for a long time when you hit rock go around it them boom there he is again for 3th time now for last just go next to the third one I think then search around till you get a fire fossil that has no holes that may be T Rex fossil so good luck
Well I have the Arms and legs of t-rex and I looked everywhere for his head and body in Parchment dessert.Oh and I have all four oasis seeds. And I need the last part of Spinax,the body.I have all the levels of the fossil finder thing too.
Go and get 4 seeds and plant them to the desert or get shoni krona and sphinx and talk to the man and he will say you have those dinosaurs and he gives you 4 ora seeds or get every legendary in the game and saurhead will say your a master battle me click yes then he will give you a red fossil rock and clean it then its a t-rex part it can be any part if its a part you don't want then turn off the ds and back on and do it again.