Cataphractii Pattern Terminator Armour was originally a prototype for the later patterns of Terminator Armour first used by the Space Marine Legions and the warriors of the Legio Custodes throughout the Great Crusade and Horus Heresy eras. Whilst similar in many respects to the standard Indomitus Pattern Terminator Armour used by the Adeptus Astartes of the late 41st Millennium, it was set apart by a number of features such as the large, layered pauldrons, the pteruges protecting the elbow and thigh joints, and a helmet that resembled that used by the Mark III Iron Pattern suit of Power Armour.
Although the use of the Cataphractii Pattern was rare before the Horus Heresy, some Legions, such as the Sons of Horus and the Iron Hands, possessed a large number of these suits. The Iron Hands Legion passed on these suits to their Successor Chapters during the Second Founding of the early 31st Millennium. #warhammer40k#spacemarine#cataphractii