Archimylacris is a species of large cockroach-like insect from the Carboniferous period of North America and Europe. It had a large head shield, long and curved antennae, and wings. It was 2-3 cm long and likely lived like modern cockroaches, scurrying through leaf litter in order to find edible material.
In The Land Before Time
Archimylacris appears as an enemy in The Land Before Time for GameBoy Advance. It is the first enemy encountered in the second area of the game, the Smelly Swamp. It simply walks back and forth across a branch until it collides with the player. It can be simply defeated by jumping on its back. It gives the player 50 points when defeated.