Triceramon

Triceramon is an Ultimate Level Dinosaur Digimon that resembles the triceratops and is thus its namesake.

Triceramon has harder horns than any other Digimon.

Digimon Adventure 02
When Digimon started appearing in the Real World, a Triceramon was seen in the town that Ken lived in. Davis Motomiya and Raidramon brought down the Control Spire so that Veemon and Wormmon could Digivolve to ExVeemon and Stingmon. When that was not enough, they DNA Digivolved to Paildramon and were also attacked by Mummymon. A beam of light from Azulongmon's power that allowed the other Digimon to Digivolve to Ultimate also enabled Paildramon to Digivolve to Imperialdramon and they sent Triceramon through the Digi-Port back to the Digital World.

Digital Monster X-Evolution
Some Triceramon were seen fleeing from Omnimon, but they were killed by the Royal Knight. Two more were later seen with the rebellion that was under attack by the DexDoruGreymon.

Digimon World 2
Triceramon digivolves from Tyrannomon and Flarerizamon. Triceramon is one of the few Ultimate level Digimon in Digimon World 2 who can not Digivolve further.

Digimon World DS
Triceramon digivolves from Tyrannomon, and can digivolve into Cannondramon. Triceramon also appears in Ancient Canyon.

Attacks Variations / Subspecies
 * Tri-Horn Attack: Fires energy beams from his three horns.
 * Mega Dash: Charges at opponents head-first.
 * Tail Slap: Slams opponents with his tail.
 * Knock Buster
 * Triceramon X

Triceramon X
Triceramon X is an Ultimate Level Ceratopsian Digimon, a Triceramon modified by the X-Antibody.

Digital Monster X-Evolution
A bunch of them were a part of Silphymon's rebel group.

Attacks Variations / Subspecies
 * Golden Tri-Horn Attack
 * Knock Buster
 * Triceramon