11.   Archaeologists said that radiocarbon dating was not yet precise enough to establish whether einkorn or emmer wheat or barley was the first cereal to be domesticated.

12.   Archaeologists said these observations conformed exactly with contemporary written descriptions of the original fort.

13.   Archaeologists said they had few concerns about working in Turkey.

14.   Archaeologists say cave art is so fragile one thoughtless visitor could destroy a prehistoric masterpiece.

15.   Archaeologists say poverty provides a powerful incentive for looters, but the demand for Chinese antiquities is also a major force.

16.   Archaeologists say they need to refine the dating techniques that establish their chronologies.

17.   Because of its perfect condition and the unusual nature of the animal scenes, the Greek cup is the most valuable single piece, the archaeologists said.

18.   But archaeologists say looting has nonetheless caused irreversible damage to the historic sites, which are well-preserved in cold water but are extremely vulnerable.

19.   But archaeologists say that at least another two levels of graves remain.

20.   But Russian archaeologists say Lady is the most important Scythian discovery since Pasyryk.