Magmasaur~!

[Cha0ticInsanity]

So it's safe to assume that Magmasaurs do not spawn in Crystal Isles? Not seeing anything on them.

[Jiala]

They're currently exclusive to the Genesis part 1 DLC. At least on official and no mods.

That said, there is a mod on the workshop to add Genesis creatures to other maps, I installed it and saw magmasaurs spawn on my extinction map. May not be what you're asking but I figured I should be thorough.

[G4M5T3R]

Crystal isle author released a companion mod that adds back in crystal and liquified spawns. The crystal magmasaur is one of them.

[Bob]

Yea, it is missing a lot from the mod version of the map in regards to creatures.

[Cha0ticInsanity]

Thank you everyone :D. I found the mod for it.