Mesolithic shell mounds (concheiros) in Portugal, dated between 7350-5150 bp (Atlantic period). There was a microlithic industry, quartzite pebbles and grindstones, and bone points and axes of red deer antlers. There are more than 230 burials - individuals with at least some Cro-Magnon characteristics, called Cro-Magnoids. It is an important European Mesolithic funerary assemblage.