The area of present-day Morocco has been inhabited since Paleolithic times, sometime between 190,000 and 90,000 BC. During the Upper Paleolithic, the Maghreb was more fertile than it is today, resembling a savanna more than today's arid landscape. Twenty-two thousand years ago, the Aterian was succeeded by the Iberomaurusian culture, which shared similarities with Iberian cultures. Skeletal similarities have been suggested between the Iberomaurusian "Mechta-Afalou" burials and European Cro-Magnon remains. The Iberomaurusian was succeeded by the Beaker culture in Morocco.