Mark is a male saltasaurus which was first introduced in season 2 episode 1: Haven't we been here before. He is also Salty's mate.
Mark first appeared in the first episode of season 2 alongside Salty. In episode 3, Mark is seen migrating across the south side of the island with other herbivores. He makes another appearance in episode 7 where he and Salty are badly wounded by Spiney. Mark makes his final appearance in the last episode of season 2.
- Mark is somewhat a minor character, since he only appears in few episodes of season 2.