La Madeleine, Tur- sac, Dordogne. Solutrean from Solutré, Seine et Loire. Upper Palaeolithic (?Azilian-Campignian), of Middle Palaeolithic Lower Palaeolithic Somme. |Chellean from Chelles, Seine et Marne. Pre-Chellean. These cultures have been described by Gregory (1915, 1920) deal with this problem, although the river must