>>18438185I know Megadactyl lore on the official site contradicts this, but my autism sees it as:
Omanyte/Omastar: Water
Kabuto/Kabutops: Water/Bug
Aerodactyl: Dragon/Flying
Anorith/Armaldo: Bug/Water -> Bug/Steel
Lileep/Cradily: Grass/Water
Cranidos/Rampardos: Rock
Shieldon/Bastiodon: Steel
Tirtouga/Carracosta: Water
Archen/Archeops: Normal/Flying
Tyrunt/Tyrantrum: Dragon
Amaura/Aurorus: Ice/Electric