User blog comment:PerhapsTheOtherOne/A New Theory on the Legendary King Ghidorah/@comment-25285745-20141130165949/@comment-3367060-20141130210140

Uh, Toho really has nothing to do with the plot of any IDW comic. They only approve them. Also, Godzilla: Ongoing had Ghidorah as a terrestrial creature (and by extension Rulers of Earth and Kingdom of Monsters, which all share the same continuity and are the main IDW series). And half of Ghidorah's character is terrestrial. (1991 and 2001)