Zirconis

ジルコニス

Zirconis, also known as The Jade Dragon, was one of the many Dragons killed by Acnologia. His soul was resurrected in the Dragon Graveyard through the use of Wendy Marvell's Milky Way.
Over 400 years ago, Zirconis was one of the Dragons who opposed the notion of Dragon-Human integration, as he believed that they were nothing but a food source. Later, during the course of the war, Zirconis became one of the many Dragons killed by Acnologia, the Dragon King.