I don't actually.... but having done a search, it does look like there are two different kinds of sarcophagi, the typical Egyptian standing version and the stone slab version that I was thinking of. I guess I just never realized that the word covered both version rather than there being two different words for each version.
Thanks for the help! Needed the word for a part in an adventure that I'm writing, which is part of an Adventure PATH that I'm writing.
Maybe one of you knows the answer to this question:
What is the stone THING called that you find in a mausoleum that usually has the carving of a warrior or some other figure on it? You slide the top part off to reveal the dead person inside.
Would you be interested in running it pbp? If it is Pathfinder, I would break my "no more games rule".
After that I need to finish my NPC Imp with incredibly low Int and Wis.