Ogretail

Ogretail is a small Aragami. It has the largest population of Aragami. Eric der Vogelweid was devoured by this Aragami due to he let his guard down.

God Eater Burst
''A smaller Aragami with a giant tail sporting an ogre-like face. Mainly devours corpses of other Aragami. Increasing in number in various regions. First appeared on the American Continent: now boasts the largest population of all Aragami. Not particularly difficult to take out when attacking from the side. Still, as its tail-spinning attack is powerful, be wary of it when it braces both legs.''

Trivia

 * In the training missions, you fight simulation versions of this Aragami. It is very much weakened to ensure a successful training session.
 * In one of the God Eater 2 cutscenes, Julius Visconti was able to block an Ogretail's bite using just his left arm.