When was the Parthian late bodygourd first use, historically?

[anubis88]

Historically, cataphracts armoured like the Late Bodyguards and the Late Armored Elite Cataphracts were not in use until the first centuries AD. Down to the first century BC, all Parthian cataphracts were armed like the Parthian Noble Cataphracts.

Hm.. I dunno about that. In the EB's battle of Carrhae, the Bodyguard of the Parthians is the Late one...