Turtle made his debut in Legion of Super-Heroes #48 when he attempted to audition for the team. He was created by Jim Shooter and Francis Manapul.
Turtle was one of four alongside Sizzle,Night Girl and Gazelle who applied for membership in the Legion of Superheroes. During his try out he demonstrated his ability to take vast amounts of damage in his try out alongside Sizzle,although he was ultimately rejected because his power was only useful for defensive purposes. But ultimately he impressed the Legion enough with his ability that he, Sizzle and Night Girl were invited to join the newly created Legion Reserves.
Powers and Abilities
Turtle possesses a large degree of invulnerability to physical harm.