What is the ecosystem of thorny devil?

The biome of a thorny devil is the desert.

Thorny devils are native to the deserts and inland, arid and semi-arid regions of Australia. They are not restricted to just the hot northern regions, but are also found throughout the southern deserts where the temperatures get very cold at night in winter.

Thorny devils are found where the soil is sandy, such as the spinifex sandplain and sandridge deserts. However, they are also found in the mallee region of southern South Australia and southwestern Western Australia, where mallee scrub is plentiful.