Quoted By:
Region is Australia.
Starters:
Grass ground type Wombat
Pure fire type Kangaroo
Water poison type platypus
Early route normal type:
based on a numbat that evolves into a Quoll.
Early route flying mon:
Normal flying Cockatiel that evolves into electric flying cockatoo. (Shiny can be a black cockatoo)
Early route bug type:
bug poison Red back spider.
New Pokemon:
Flying/Dragon Cassowary (Since they are the closest looking things to dinosaurs)
Ice/dark Tasmanian Devil
Grass type Emu
Water/fairy Dugong
Ghost Tasmanian Tiger
Legendaries:
Dragon/ground Rainbow Serpant
Psychic/flying Lyre bird
Roaming legendaries/trio legendaries based on the 3 sisters
Bonus:
The post game would take place in the Great Barrier Reef where you can catch Alola forms and island hop.