This is the story of the legendary Tarasque, a dragon-slaying beast from the Middle Ages. This mythical creature was said to have been a giant, scaly creature with a lion's head, a turtle's shell, and
From Wikipedia
The Tarasque is a creature from French mythology. According to the Golden Legend, the beast had a lion-like head, a body protected by turtle-like carapace(s), six feet with bear-like claws, a serpent's tail, and could expel a poisonous breath.