Tylomon X

Tylomon is the Armor Digivolved form of Gatomon through the Digi-Egg of Reliability. His name comes from Tylosaurus, a prehistoric sea-dweller of the Mosasaur family.

The Adventurer's Battle
Tylomon appeared during Mephistomon's time in the Real World. He was among the Digimon sent to capture Minami Uehara, so she could be used to force the location of the V-Pet vaccine program from her father. The Tylomon chased after her as she fled the island base of VP Labs, and the pursuit interrupted a quiet fishing trip that Takato Matsuki, his cousin Kai and Guilmon were on. Guilmon attacked the Tylomon, and they disappeared beneath the sea, but Guilmon emerged through the waves a short time later, the victor showing that Tylomon is destroyed.