[Radio]

From the beginning of the story they've said we bury our own and burn the walkers. They've had a number of funerals already and even buried Sofia.

If I am not mistaken one grave is still open, Lori's. But they don't know that she's been eaten. So once they find out I am sure they'll fill in the empty grave and have a funeral...ala Otis. You have to remember only Maggie and Carl know where her body was and Rick is the only guy who's gone in looking for her. So as far as they know her body is still there and will bury her when Rick brings her out.

They assume Carol is dead because all they found was her scarf and therefore made an empty grave for her.

They did find T Dog's body. Rick killed the 2 walkers that were eating him near the end of that episode. That's when Daryl found Carol's scarf. There was a goodly amount of him left to bury.