In Spirits of the Ice Forest, a Koolasuchus is seen seasonally migrating from his pond, to the forest. It was only about 200 metres, but was a laborious journey due to his weight. It is also seen once attempting to kill a Leaellynasaura, though it fails. Even so, at the beginning of the episode it does devour a frozen Leaellynasaura carcass.
Koolasuchus doesn't appear in any specials.