The Extinction Angels are a Renegade Chapter of Chaos Space Marines that has sworn itself to the service of Chaos Undivided. The Extinction Angels are one of the Renegade Chapters that turned to Chaos after the Horus Heresy and the Second Founding. The Chapter is infamous for its skill in launching planetary assaults.
- 13th Black Crusade (999.M41) - During the 13th Black Crusade the Chapter fought alongside the Black Legion on the Forge World of Demios Primary, where they scattered the Skitarii forces who were protecting the many forges of the Adeptus Mechanicus. The planet was liberated by the Black Templars Space Marines and it is believed that the Extinction Angels are still hidden in the lower depths of the world's many forges.
The Extinction Angels' Power Armour is painted a dark purple with bone and gold details.
The Chapter's badge is a skull wearing a red hood, behind a grey Scythe.
- Codex: Chaos Space Marines (3rd Edition, 2nd Codex), pg. 76
- White Dwarf #287 (UK), "The Thirteenth Black Crusade: Death by a Thousand Cuts," pg. 38