In Stargate SG1 they discover a woman frozen in ice where the second stargate was discovered. This is in season 6 episode 4 btw. In the episode, they find out that she may be millions of years old and could possibly be an Ancient. Later she dies with a disease. Once they got back to the base, why not put her in the sarcophagus? In the last season, they talk about taking it although it was under heavy guard by the Jafa. I'm sure it was worth the risk to retrieve it, because of what they could have learned and what she could have taught them!
Or why not implant her with a symbiote from the Tokra or Chulak?
Just seems like another thing the show decided to cut out.