Egg of Pterosaur- (Flying), Tamable. Each egg needs to be in a certain habitat or biome to hatch. If they are in the wrong habitat they do not hatch and they die. Some eggs needs to be in the desert, some in grassland and some in water. For your Dinosaur to be tamed, you need to be six or less blocks away from it when it hatches. Brachiosaurus Egg.