Well, the image above can't be from the Tam-Tara deepcroft. It features an Ixali Banner, as if this location has been taken over by the Ixal.
That's not something I'm seeing in what we have come to know about the Deepcroft as an instanced raid:
http://forum.square-enix.com/ffxiv/t...anced-Dungeons
Edit: Galvanth the Dominator is visible in this video
by name at 2:54 on the target bar at the top of the UI.
Edit Edit: I'm not sure if I'm ready to unpack the mysteries surrounding the deepcroft just yet, but for now I'm inclined to suspect that Llysander's screenshot could be from a small Gelmorran ruin, although it could indeed be a padjali tomb. By Nophica, it occurs to me we don't even know when the Padjal came into existance - I've been assuming it was at the foundation of Gridania with the "pact of Gelmorra" but I have almost no evidence to back this assertion up.
Edit Edit Edit: That Twin Adder logo is also found behind the cultist rosary at 1:40 in the video as well. You may be closer to the mark than I thought.