Prehistoric animals during Godzilla's time (UPDATE)

(THIS IS AN UPDATED LIST)

I was thinking about what was Godzilla's life like before the Permian Extinction 250 million years ago, what other species were around during that time???

List of species:

Giant Spiked Ankylosaurs ( Anguirus) Status: Harmless unless provoked

Giant Pteranodons (Rodans) Harmless unless provoked

MUTOs Parasites which cause havoc

Shinomura Parasites which cause havoc

Giant three headed dragon(King Ghidorah), came in a smaller asteroid before the Permian, and started to kill Godzilla species and become the new apex predator.

Zillas, 200 ft tall piscivores, one of the smaller predators who usually run away from fights, a few specimens grow to 300 ft and are alot more like the Godzilla species. (Zilla jr. reference)

Godzillas, top of the exosystem, apex predators.

Giant Moths, harmless unless provoked, sometimes fights alongside Godzillas against common threats

UPDATE:

Titanosaurus, aquatic dinosaurs 300 ft tall who are not friends nor enemies with the Godzillas

Baragon, small burrowing herbivores who dont usually pick fights, but will protect its young ferociusly

Varan, small gliding giant monitor lizards who are peaceful and usually scavenge from their natural friends, Godzillas

Meganulon, small insects who are pests to creatures, much like fleas, they have a queen called Megaguirus

Manda, water dwelling sea serpents who are harmless unless provoked

I also made a new avatar from the new picture of Godzilla on the magazine cover, shared on the forums by InstinctiveGigan, check it out if you want to use it.

http://i60.tinypic.com/106adjr.jpg