Pulmonoscorpius ("Lung scorpion") is a genus of scorpion from the Carboniferous period of Scotland. It is one of the largest true scorpions known, only competing with Brontoscorpio for the title of largest scorpion ever. While it is currently unknown what it ate, it very likely ate smaller arthropods and small tetrapods.
In The Land Before Time
Pulmonoscorpius appears as an enemy in The Land Before Time for the GameBoy Color. It appears in desert-themed levels, where it can be seen walking back and forth in an attempt to hit the player to deal damage. Fortunately, it can be defeated with the game's attack move.