Torchic is more likely a feral or wild chicken as might be found in SE Asia
Mudkip is a mudskipper found in Indonesia
Treecko could conceivably be African or South American
Cacturne is a cactus. Lots of those in North/South America.
Manectric is a wolf. North American.
Donphan is Gen 2.
The golem trio is based on a legend, as is possibly Tropius, not confirmed animals (you stated that these were animals, but they are mythology).
Torkoal is a tortoise. Could be from anywhere.
Hey. I've been gone for awhile. Now I'm back (temporarily at least). Nobody gonna clap? Ok that's fine...