How do you get a saltasaurus in dinosaur king

Speak to the little girl above euro town and she will say "Mimi, where are you?" if she said she dropped a necklace do that and then go into town. then go back out and she will say the Mimi thing. Mimi is near Laura's mine. once you found her bring it back to the girl and she will give you a mystery fossil. that is a Saltasaurus