 He tried to relate the pyramidal Berber tombs with the great Egyptian pyramids on the basis of the etymological and historical data.The best known Berber pyramids are the 19-meter pre-Roman Numidian pyramid of the Medracen and the 30-meter ancient Mauretanian pyramid.The Numidian pyramid in Tipaza is also known as Kbour-er-Roumia or "Tomb of Juba and Sypax", mistranslated by the French colonists as "Tomb of the Christian Woman".