Ankylomon

Ankylomon is a Dinosaur Digimon whose name and design are derived from the Ankylosaurus. Not only is its whole body covered in skin that has become hard, but it also has hard osteoderms coming out all over. Therefore, its charge attack has extraordinary destructive power. As a fundamental result of being a herbivorous Digimon, it is not ferocious, but it is decidedly not timid, and is the possessor of a brave character.

Digimon Tamers
In the first episode of Digimon Tamers, when Takato drops all of his cards an Ankylomon card can be seen.

Digimon Adventure 02: Tag Tamers
Ankylomon digivolves from a line 4 Armadillomon and from a line 20 Armadillomon with a Digi-Egg equipped, which can digivolve to Shakkoumon.

There is a stone slab stating that DNA Digivolving Ankylomon and Angemon will produce either a Shakkoumon or a MagnaAngemon.

Digimon Adventure 02: D-1 Tamer
Satoshi uses an Ankylomon in his party against Ryo.

Digimon Tamers: Brave Tamer
The Ankylomon card, titled "PF PP Plus IV", will increase a Digimon's PP by 15.

Digimon Digital Card Battle
Ankylomon is one of the opponents in Igloo City's Extra Arena. His card can also be obtained, and is Yellow, making him of the Rare type.

Digimon World 3
Ankylomon is a white card level champion 10AP 13HP 10/13

Digimon World DS
Ankylomon digivolves from Armadillomon, and can digivolve further into Seahomon depending on its stats and if it's holding the Digi-egg of Light.

Digimon World Dawn/Dusk
Ankylomon digivolves from Armadillomon. It can DNA digivolve with Angemon to create Shakkoumon.

Digimon World Championship
Ankylomon is a digivolution of Armadillomon and can digivolve into either Triceramon, SkullGreymon, or Scorpiomon.

Attacks
 * Megaton Press: Leaps high into the sky despite its massive appearance, then uses that large build to crush the opponent.
 * Tail Hammer: Violently beats the opponent with the iron sphere on the tip of its tail, completely shattering the opponent's wire frame.
 * Armor Stampede
 * Rhythmical Knock