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The Terror Lizard Clan (恐竜族, Kyōryū-zoku) was a clan of dinosaurs that used to live on Earth eons ago. It was wiped out when a meteor crashed into the Earth. The Ancient King, the sole survivor of the clan later tried to take over the surface of the Earth for himself, but was killed by Tatsumaki.


The Terror Lizard Clan was a violent race who used to roam the Earth. They were colossal creatures that had various reptilian animal features, such as scales and claws. The King had the ability to shoot Energy Beams from his mouth.[1]


Hero Association Saga

Alien Conquerors Arc

The Ancient King awakens after 300,000,000 years of slumber, which he spent waiting for the kings of the other clans to be taken out. He is attacked by Earth's military forces, but the missiles prove ineffective against the Terror Lizard's skin. The Hero Association deploys Tatsumaki who takes care of the Mysterious Being.[2][3]

Known Terror Lizards

Name Status
Ancient King Deceased


  • Kyōryū (恐竜) literally means "Dinosaur".


  1. One-Punch Man Anime; Episode 10
  2. One-Punch Man Anime; Episode 10
  3. One-Punch Man Stream; 27/1/2018


Mysterious Beings
Unaffiliated Crablante Vaccine Man Marugori Piggy Bancon Giant Snowman Himawari Personification Of A Light Pull Cord Kombu Infinity170,000-Year-Old Cicada Larva 170,000-Year-Old Cicada Adult Demonic Fan Delorean Alien SeerThree-Eyed Ghost Surprise-Attack Plum Tongue StretcherGiant Crow Octopus Claw Man Grizzly Nyah Suppon Gigakigan Hotdog Game-Berus Autumn Phantom Red Golden-ringed DragonflyJumping Spider Scaledon Enamel Black Roast Macho Daikon Withered Sprout Research Hybrid Monster Twin-Headed Tsuchinoko Man-Eating Capybara Pot Bellee Kenzan Rat Pesky Clown
Native Tribes Forest Tribe (Forest King ) • Seafolk (Deep Sea King Lord Great White Messenger of the Seafolk ) • Skyfolk (Sky King Eagle Hawk Falcon Kite ) • Subterranean People (Subterranean King ) • Terror Lizard Clan ( Ancient King )
Dark Matter Thieves Boros Geryuganshoop Melzargard Groribas Dark Matter Gunner 
The Organization G4 G5 
House of Evolution Carnage Kabuto Beast King Armored GorillaKamakyuri Ground Dragon Frog Man Slugerous Mosquito Girl 
Anime-Only Mysterious Beings Super Custom YO649Z Mk. II Fish of Darkness *Pluton Men's Esthetician Man *Dirt Earthworm Japanese Giant Salamander Lord of Mountains TV Junkyard Monster Urn Eel Crazy Brown Bear 
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