Board Thread:Questions and Answers/@comment-8959286-20130927152419/@comment-16571503-20131023104119

1. It is an adaption and the staff of the anime didn't know about it.

2. Things Change, since the mark was never shown in the games.

One much more intressting thing is the mark on ragnas clothes can be found also on Lambda, Mu and on the back of Platinum's robe.