Levalloisian adjective2 •Of or related to certain Middle Paleolithic cultures.O'Brien regards the Still-Bay as the final development of the Levalloisian, and, like Leakey, assigns it to the end of the Gamblian pluvial. — 1902 •Manufactured with the Levallois technique of flint knapping.Purely Levalloisian stone tools which might be called classic models have been found in the Altai and Unst’-Kansk caves on the Charysh and Strashnaya rivers (in the Tigerek mountains). — 1990