A region either based on Greek mythology, or the Yucatan Peninsula in Mexico, so there could be legends or a single legendary that would represent the meteor that wiped out the dinosaurs/fossil Pokemon.
Non-Mega Evolutions for:
Dunsparce (Normal/Dragon)
Sableye (Dark/Ghost)
Stunfisk (Electric/Ground)
Luvdisc or Alomomola (Water/Fairy for both)
Lumineon (Water/Fairy)
Basculin (Water/Dragon or Water/Dark)
A male version of Kangaskhan (pure Normal or Normal/Fighting)
Delibird (ice flying)
Octillery (maybe, pure Water or Water/Steel)
Pre-Evolutions for:
Tauros and Miltank (why hasn't this already been done yet?)
Heatmor
Durant
Kangaskhan
Lapras
Absol
Tropius
Skarmory
Mega Evolutions for:
(pretty much any underrated Pokemon you can think of, plus all the starters)
New Pokemon ideas:
A battery Electric type
An Ice type snowman
A porcupine
Grass/Electric lemon
Chain related Ghost types
A scarab beetle
Pseudo legendary Pokemon that aren't Dragon, Steel, Flying, Psychic Rock, Ground, or Dark type, maybe for underrated types like Grass or Bug
Competent early normal types (or evolutions of old ones, I like making all Pokemon useful)
A manatee (would be rare)
Butterfly shrimp
Fairy/Dragons
A hummingbird
Koalas
Kangaroos
Tasmanian devils
Fruit bats (that are actually useful)
Pokemon based on weather like a lightning bolt, or a tornado/funnel cloud
Nerve cells
A tanuki raccoon thing
Shadow people
Clownfish and a sea anemone
Bighorn sheep or rams
Komodo Dragon
Non-Mega Evolutions for:
Dunsparce (Normal/Dragon)
Sableye (Dark/Ghost)
Stunfisk (Electric/Ground)
Luvdisc or Alomomola (Water/Fairy for both)
Lumineon (Water/Fairy)
Basculin (Water/Dragon or Water/Dark)
A male version of Kangaskhan (pure Normal or Normal/Fighting)
Delibird (ice flying)
Octillery (maybe, pure Water or Water/Steel)
Pre-Evolutions for:
Tauros and Miltank (why hasn't this already been done yet?)
Heatmor
Durant
Kangaskhan
Lapras
Absol
Tropius
Skarmory
Mega Evolutions for:
(pretty much any underrated Pokemon you can think of, plus all the starters)
New Pokemon ideas:
A battery Electric type
An Ice type snowman
A porcupine
Grass/Electric lemon
Chain related Ghost types
A scarab beetle
Pseudo legendary Pokemon that aren't Dragon, Steel, Flying, Psychic Rock, Ground, or Dark type, maybe for underrated types like Grass or Bug
Competent early normal types (or evolutions of old ones, I like making all Pokemon useful)
A manatee (would be rare)
Butterfly shrimp
Fairy/Dragons
A hummingbird
Koalas
Kangaroos
Tasmanian devils
Fruit bats (that are actually useful)
Pokemon based on weather like a lightning bolt, or a tornado/funnel cloud
Nerve cells
A tanuki raccoon thing
Shadow people
Clownfish and a sea anemone
Bighorn sheep or rams
Komodo Dragon