PT Petroglyph™ was designed by Ekaterina Kulagina and licensed by ParaType in 2002. The type was created on the basis of petroglyphs (rock-carvings) that are known in 77 countries. They remained in a form of geometrical drawings in the caves of North Spain and France. Scientists claim that the radial spread-out of circles or center-pointed circles that are usually depicted show the development of solar symbolism at that period of time.