Rioclarense points are early forms (circa 10,000-7,000 years ago) found in central Sao Paulo State, Brazil.  They are best known from the Alice Boer site near Rio Claro.  They are well made and often exhibit fine serration.  This specimen is made from Catlan Seco silicified sandstone from the Artigas area of northern Uruguay.  It is 85 mm long, 30.5 mm wide, 7 mm thick and weighs 16.1 grams.