Space-Time Mammoth

Jiku Mammoth (ジクウマンモス Jikūmanmosu?) (26): The result of Grey's Bio Dimensional bug imbued with mammoth DNA fused with a time piece, this monster calls out the Jetmen before using its Time Slip Beam on them. But Yellow Owl's attack causes them all to end up in prehistoric times. After enough jewels to regain his full power, This monster enlarges itself and overpowers the Jetmen they manage to force the monster back to the present where it was destroyed by the Great Icarus.