Mark Allen Barnes is a British composer and instrument maker who works under the name Oceania Stegosaurusia Tardigradia. Barnes is known for his experimental microtonal string instruments.
Ocean Tardigrade has built multiple unusual string instruments as well as a few unusual wind instruments. The instruments themselves are mostly made of wood and have a home made esthetic to them, often featuring elements of hardware store materials. Tartigrade's style of musical performance often involves humor and chaos, as well as theatrical costumes and behavior.