[[File:Tree of Beginning Omanyte Omastar.png|thumb|left|250px|Omastar in the {{pkmn|anime}}]]
[[File:JN038.png|thumb|left|250px|Omastar in the {{pkmn|anime}}]]
===Major appearances===
===Major appearances===
In ''[[EP046|Attack of the Prehistoric Pokémon]]'', two Omastar were dormant under [[Grampa Canyon]] until a dynamite blast woke them up. The two Omastar chased [[Ash Ketchum]] and {{TRT}} until {{p|Aerodactyl}} showed up and scared them off.
In ''[[EP046|Attack of the Prehistoric Pokémon]]'', two Omastar were dormant under [[Grampa Canyon]] until a dynamite blast woke them up. The two Omastar chased [[Ash Ketchum]] and {{TRT}} until {{p|Aerodactyl}} showed up and scared them off.
Omastar is a Pokémon similar to an ammonite. Its sky blue body has several tentacles; the tentacles toward the front are shorter and thicker than those in the back. There is a pale yellow, helix spiraled shell on its back. Several sharp spikes line the shell's midsection from the front to about halfway down its back. The shell's rim has two circular indents where Omastar's eyes are visible. Its eyes have yellow sclerae and vertically-slit pupils. It has an oval mouth with a four-sectioned, fang-like beak.
It is believed that Omastar's extinction was a consequence of the increasingly heavy weight of its own shell that affected its mobility, including its hunting. Omastar swam the seas in search of prey, including prehistoric Shellder. Omastar's used its tentacles to ensnare its prey before biting down with the deadly force of its beak. With the shell broken, it would suck out the contents. Omastar was in turn preyed upon by Carracosta. Omastar is thought to be a distant ancestor to Octillery.
In Fossil Fools, multiple Omastar were discovered to be living in the Ruins of Alph alongside their pre-evolved form Omanyte. They were moved into a museum at the end of the episode.
Omanyte and Omastar, Kabuto and Kabutops. It is believed these Pokémon became extinct tens of thousands of years ago. The details of their behavior is shrouded in mystery. Though some have speculated that they may still exist, none of these Pokémon have ever been seen alive.
Omastar, the evolved form of Omanyte. This extinct Pokémon is believed to have used its sharp fangs to break through the shells of its prey in order to feed.
Omastar uses its tentacles to capture its prey. It is believed to have become extinct because its shell grew too large and heavy, causing its movements to become too slow and ponderous.
An Omastar uses its tentacles to capture its prey. It is believed to have become extinct because its shell grew too large, making its movements slow and ponderous.
Omastar uses its tentacles to capture its prey. It is believed to have become extinct because its shell grew too large and heavy, causing its movements to become too slow and ponderous.
In early English-language promotional material for Pokémon Red and Blue, Omastar was originally known as "Kargo". This name is derived from "escargot" (French for snail).
Origin
Omastar appears to be based on a type of ammonite. In addition, its method of grabbing prey and cracking their shells with ring-shaped mouths may be based on Anomalocaris.
Name origin
Omastar's name is a combination of its Japanese name, a phonetic anagram of ammonite, and star (based on its body shape).
Omstar is a combination of オウムガイ ōmugai (nautilus) and star.
This Pokémon article is part of Project Pokédex, a Bulbapedia project that aims to write comprehensive articles on each Pokémon species, as well as Pokémon groups and forms.
For other sprites and images, please see Omastar images on the Bulbagarden Archives.
