==See also==*Acheulean*Synoptic table of the principal old world prehistoric cultures==References==Butler, C, "Prehistoric Flintwork", Tempus : Strood, 2005==External links==*Drawings of Clactonian tools*The Southfleet Road elephant
* Butler, C, Prehistoric Flintwork, Tempus : Strood, 2005* Drawings of Clactonian tools* The Southfleet Road elephant