21. The B�rglenhubel site includes traces of an earthen wall, turf houses and flint tools . 22. It was found by M . Gautier who recovered Heavy Neolithic flint tools from the surface. 23. Although flint tools were found nearby, hers are the only human remains in Vermelha Cave. 24. The Mesolithic is characterized in most areas by small composite flint tools microliths and microburins. 25. Different flint tools were found at the site in both periods, including sickles and arrowheads. 26. Among other flint tools probably used to create the frieze were found Magdalenian burins and scrapers. 27. Work carried out by paleolithic societies to create flint tools is more often referred to as knapping. 28. Excavations in 1949 found animal bone, flint tools and Ebbsfleet type Peterborough ware at the site. 29. At least two simple flint tools , including an arrowhead, have been found in the area. 30. When the settlement around the chair was excavated, flint tools were among the artefacts found there.
