You need to talk to a old man in the bottom left corner of the desert. he will tell you that the desert is too hot for the sonar and you need to plant oasis seeds. then the seeds will be available in the shop for 20,000G each. you will need four of them to be able to search the whole desert.
get 80,000 gold and when you finish the game you need 4 oasis seeds at 20,000 each to cool the parchment desert down so your sonar works then you just got to search until you get lucky remember: parchment desert :3
You need to grow oasis's. To grow them, find a man who's in the desert and talk to him. After, go to the fossil shop and look at Today's special. Buy the item and give it to the man and an oasis will apear after an hour.
First, you have to beat the game to unlock it then talk to Beth to go to the dig site Parchment Desert. After that talk to an old man then go the the shop in fossil guild and ask what today's special is, it'll be oasis seeds for 20k each, buy them and give them to the old man, then wait awhile and then go back and there be an oasis behind the old man then you'll finally be able to have the sonar detect fossils in parchment desert now.
you have to have the upgraded chips for your sonar.
you cant
upgrade sonar 2 the max
daspelto is rare but you should find him in the bb base with a fully upgraded sonar.
His name is Laurence and he tells you that the dig site is too hot for sonar to work. After talking to him, buy an oasis seed. Give it to him and wait a while for it to grow into an oasis. You have to do this 4 times.
Its in mount lavaflow but if you want to find it faster or don't get the same fossils, upgrade your sonar to fossil chip 2. Hope this helps :D
you don't need a dino you need to go to vivosaur island and go to the guild area and go into the guild and go to the guy on the left and talk to him and buy todays special and go back to parchment desert and find the old man and give him the oasis seed
You can find the Mesa Fossil in Spectrobes 1 by excavating the fossil rocks in the desert area of the planet Daichi. Explore the desert thoroughly and use the Sonar search function to help locate and excavate the Mesa Fossil.
You can find them in Miraculous Fossil rocks.You can find those in any Fossil Park but it is very hard to find one.They appear as Yellow dots on your sonar,but the yellow dots can also be Fossil rocks,Dark Fossil rocks,and Wonderous Fossil rocks.