That would actually depend on how "fuzzy" we'd like to make the border between Cilicia and Cappadocia and how to properly define the "cataphract". During the late Achaemenid period, a series of reforms especially for the cavalry arm were introduced, and Xenophon mentions in his treatise on horsemanship several recommendations of using the "Persian model"; He not only mentions the so called laminated armour, but various equipment used to furnish the horse, amongst these a breast-plate, a chamfrôn and a parameridia/parapleuridia (Very esoteric debate that I'd rather not indulge in, a lot of boring technicalities), also known in more common terms as the armoured saddle. We have a limited number of depictions of this strange apparatus, amongst these the damaged relief at Bozkir, but some have suggested that it is Lycian in origin. This is to the west of the Cappadocian and Cilician areas, but these areas where quite profoundly Persianized. Especially Cappadocia which had been under heavy Medean influence since the war between Alyattes of Mermnad Lydia and Cyaxares of the Medes.
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