Plesiomon

Plesiomon (also romanized Preciomon) is a fictional character from the Digimon franchise, a Mega Level Long Neck Dragon Digimon that is named after Plesiosaurus.

Evolution
Plesiomon's Digivolution line according to the D-Terminal :
 * Fresh (Baby I) - Pitimon
 * In-Training (Baby) - Bukamon
 * Rookie (Child) - Gomamon
 * Champion (Adult) - Ikkakumon
 * Ultimate (Perfect) - Zudomon
 * Mega (Ultimate) - Plesiomon

Abilities
Despite being an aquatic Digimon it can fly.

Attacks

 * Sorrow Blue: A soundwave attack.
 * Shaking Pulse: Makes a short earthquake.
 * Water Tail Blaster: Fires a water jet from his tail.
 * Sand Water Blast: Spews out sand water from his mouth.

Digimon Tamers
A Plesiomon was among the Mega Level Digimon that appeared to help the Sovereign fight the D-Reaper.

Digimon World 2
Plesiomon is called Preciomon and evolves from Zudomon.

Digimon World DS
Plesiomon evolves from Whamon.