Strépyian (= Pre-Chellean, in part).
Mesvinian, culture of Mesvin, near Mons, Belgium (= Pre-Chellean).
Mafflean, culture of Maffle, near Ath, Hennegau.
Reutelian, culture of Reutel, Ypres, West Flanders.
TERTIARY
Prestian, culture of St. Prest, Eure-et-Loire, Upper Pliocene.
Kentian, culture of the plateau of Kent, Middle Pliocene.
Cantalian, culture of Aurillac, Cantal, Upper Miocene or Lower Pliocene.
Fagnian, culture of Boncelles, Ardennes, Middle Oligocene.
Only the Mesvinian stage is generally accepted by archæologists, and this embraces the prototypes of the Lower Palæolithic culture, which among most French authors are termed Pre-Chellean or Proto-Chellean. The Eolithic problem has aroused the most animated controversy, in which opinion is divided. A critical consideration of this era, however, falls without the province of the present work.