I will be including evolution species for this list in a separate section.
Seed Pokemon:
Bulbasaur
Ivysaur
Venusaur
Sunkern
Flame Pokemon:
Charmeleon
Charizard
Flareon
Moltres
Infernape
Shellfish Pokemon:
Blastiose
Kabuto
Kabutops
Worm Pokemon:
Caterpie
Wurmple
Cocoon Pokemon:
Metapod
Kakuna
Silcoon
Cascoon
Butterfly Pokemon:
Butterfree
Beautifly
Tiny Bird Pokemon:
Pidgey
Spearow
Natu
Mouse Pokemon:
Rattata
Raticate
Pikachu
Raichu
Sandshrew
Sandslash
Poison Pin Pokemon:
Nidoran♀
Nidorina
Nidoran♂
Nidorino
Drill Pokemon:
Nidoqueen
Nidoking
Rhydon
Rhyperior
Fairy Pokemon:
Clefairy
Clefable
Snubbull
Granbull
Fox Pokemon:
Vulpix
Ninetales
Fennekin
Braixen
Delphox
Balloon Pokemon:
Jigglypuff
Wigglytuff
Igglybuff
Quilfish
Drifloon
Mushroom Pokemon:
Paras
Parasect
Shroomish
Breloom
Foongus
Amoongus
Poison Moth Pokemon:
Venomoth
Dustox
Puppy Pokemon:
Growlithe
Lillipup
Tadpole Pokemon:
Poliwag
Poliwhirl
Poilwrath
Tympole
Flower Pokemon:
Vileplume
Bellsprout
Bellossom
Bivalve Pokemon:
Shellder
Cloyser
Clampearl
Pincer Pokemon:
Kingler
Scizor
Egg Pokemon:
Exeggcute
Chansey
Dragon Pokemon:
Horsea
Seadra
Dratini
Dragonair
Dragonite
Kingdra
Salamence
Goodra
Star Shape Pokemon:
Staryu
Cleffa
Electric Pokemon:
Electabuzz
Zapdos
Elekid
Fish Pokemon:
Magikarp
Feebas
Lightning Pokemon:
Jolteon
Electrike
Volcano Pokemon:
Quilava
Typhlosion
Entei
Scout Pokemon:
Sentret
Patrat
Light Pokemon:
Lanturn
Anpharos
Happiness Pokemon:
Togetic
Blissey
Mystic Pokemon:
Xatu
Flygon
Sun Pokemon:
Sunflora
Espeon
Volcarona
Darkness Pokemon:
Murkrow
Sableye
Royal Pokemon:
Slowking
Pyroar
Bagworm Pokemon:
Pineco
Fortrress
Burmy
Wormadam
Armor Pokemon:
Donphan
Tyranitar
Water Bird Pokemon:
Pelipper
Ducklett
Emotion Pokemon:
Kirlia
Mesprit
Ninja Pokemon:
Ninjask
Greninja
Cheering Pokemon:
Plusle
Minun
Firefly Pokemon:
Volbeat
Illumise
Brutal Pokemon:
Sharpedo
Hydreigon
Manipulate Pokemon:
Grumpig
Gothita
Vibration Pokemon:
Vibrava
Palpitoad
Siesmitoad
Cactus Pokemon:
Cacena
Maractus
Meteorite Pokemon:
Lunatone
Solrock
Iceberg Pokemon:
Regice
Avalugg
Eon Pokemon:
Latias
Latios
Continent Pokemon:
Groudon
Torterra
Playful Pokemon:
Monferno
Pancham
Cave Pokemon:
Gabite
Druddigon
Thunderbolt Pokemon:
Electrive
Zebstrika
Fresh Snow Pokemon:
Glaceon
Vanillite
Ember Pokemon:
Pansear
Fletchinder
Hostile Pokemon:
Basculin
Zweilous
Jewel Pokemon:
Carbink
Diancie
Bat Pokemon:
Zubat
Goldat
Crobat
Woobat
Evolution line species only:
Bird Pokemon:
Pidgeotto
Pidgeot
Weed Pokemon:
Oddish
Gloom
Duck Pokemon:
Psyduck
Golduck
Pig Monkey Pokemon:
Mankey
Primape
Psi Pokemon:
Abra
Kadabra
Alakazam
Superpower Pokemon:
Machop
Machoke
Machamp
Flycatcher Pokemon:
Weepinbell
Victreebell
Jellyfish Pokemon:
Tentacool
Tentacruel
Rock Pokemon:
Geodude
Graveler
Fire Horse Pokemon:
Pokyta
Rapidash
Magnet Pokemon:
Magnemite
Magneton
Sea Lion Pokemon:
Seel
Dewgong
Sludge Pokemon:
Grimer
Muk
Gas Pokemon:
Gastly
Haunter
Hypnosis Pokemon:
Drowzee
Hypno
Ball Pokemon:
Voltorb
Electrode
Licking Pokemon:
Lickitung
Lickilicky
Poison Gas Pokemon:
Koffing
Weezing
Vine Pokemon:
Tangela
Tangrowth
Goldfish Pokemon:
Goldeen
Seaking
Virtual Pokemon:
Porygon
Porygon2
Porygon-Z
Spiral Pokemon:
Omanyte
Omastar
Leaf Pokemon:
Cikorita
Bayleef
Big Jaw Pokemon:
Totodile
Croconaw
Feraligatr
Owl Pokemon:
Hoothoot
Noctowl
Five Star Pokemon:
Ledyba
Ledian
Wool Pokemon:
Marep
Flaafy
Cottonweed Pokemon:
Hoppip
Skiploom
Jumpluff
Long Tail Pokemon:
Aipom
Ambipom
Water Fish Pokemon:
Wooper
Quagsire
Sharp Claw Pokemon:
Sneasel
Weavile
Lava Pokemon:
Slugma
Magcargo
Jet Pokemon:
Remoraid
Octillery
Kite Pokemon:
Mantine
Mantyke
Dark Pokemon:
Houndour
Houndoom
Wood Gecko Pokemon:
Treecko
Grovyle
Mud Fish Pokemon:
Mudkip
Marshtomp
Swampert
Bite Pokemon:
Poochyna
Mightena
Iron Armor Pokemon:
Aron
Lairon
Aggron
Meditate Pokemon:
Meditite
Medicham
Whiskers Pokemon:
Barboach
Whiscash
Clay Doll Pokemon:
Baltoy
Claydol
Penguin Pokemon:
Piplup
Prinplup
Starling Pokemon:
Starly
Staravia
Cricket Pokemon:
Kricketot
Kricketune
Head Butt Pokemon:
Cranidos
Rampardos
Shield Pokemon:
Shieldon
Bastiodon
Sea Weasel Pokemon:
Buizel
Floatzel
Sea Slug Pokemon:
Shellos
Gastrodon
Skunk Pokemon:
Stunky
Skunktank
Toxic Mouth Pokemon:
Croagunk
Toxicroak
Frost Tree Pokemon:
Snover
Abomasnow
Grass Snake Pokemon:
Snivy
Servine
Fire Pig Pokemon:
Tepig
Pignite
Muscular Pokemon:
Timburr
Gurdurr
Conkeldurr
Desert Croc Pokemon:
Sandile
Krokorock
Proturtle Pokemon:
Tirtouga
Carracosta
First Bird Pokemon:
Archen
Archeops
Season Pokemon:
Deerling
Sawsbuck
Floating Pokemon:
Frillish
Jellicent
Gear Pokemon:
Klink
Klang
Klinklang
EleFish Pokemon:
Tynamo
Eelektrik
Eelectross
Cerebral Pokemon:
Elgyem
Beheeyem
Axe Jaw Pokemon:
Fraxure
Haxorus
Martial Arts Pokemon:
Meinfoo
Meinshao
Automation Pokemon:
Golett
Golurk
Spiny Armor Pokemon:
Quilladin
Chesnaught
Bubble Frog Pokemon:
Froakie
Frogadier
Digging Pokemon:
Bunnelby
Diggersby
Scatterdust Pokemon:
Scatterbug
Spewpa
Single Bloom Pokemon:
Flabébé
Floette
Sword Pokemon:
Honedge
Doublade
Generator Pokemon:
Helioptile
Heliolisk
Tundra Pokemon:
Amura
Aurorus
Soft Tissue Pokemon:
Goomy
Sliggoo
Pumpkin Pokemon:
Pumpkaboo
Gourgeist
Sound Wave Pokemon:
Noibat
Noivern
Now I'm done
(If there is anything I missed, please tell me.)
Source