Dragon turtle

A dragon turtle is a legendary Chinese creature that combines two of the four celestial animals of Chinese mythology: the shell of a turtle with a dragon's body is promoted as a positive ornament in Feng Shui, symbolizing courage, determination, fertility, longevity, power, success, and support. Decorative carvings or statuettes of the creature are traditionally placed facing the window.
Mapmakers sometimes drew dragon turtles along with other fantastical creatures in unexplored areas.

Ancient mythology

When Fuxi wanted to create more divine patterns, He discovered a "square diagram" on the back of a dragon turtle.

In popular culture

Tabletop games

Dragon turtles appear in some editions of the tabletop roleplaying game Dungeons & Dragons.

TV

In the animated series Avatar: The Last Airbender, a lion turtle, a gigantic creature which greatly resembles the dragon turtle, appears to grant the protagonist Aang spiritual guidance and special powers.
A dragon turtle appears in the 1983 Dungeons & Dragons cartoon episode, "The Garden of Zinn", its poisonous bite setting up the events of the episode. These creatures have a dragon body and turtle shell, with some types having flippers.

Video games

The character of Yachie Kicchou, from the 17th mainline video game of the Touhou Project, is an anthropomorphic tortoise dragon.