The authenticity of an artifact created by this culture was called into question by the presence of a so-called “cootie glyph.” Thor Heyerdahl cited the presence of a figure known as “Uncle Sam” in this culture’s art as evidence that it had Nordic ancestry. A successor to this culture wrote in the Isthmian script. This culture’s art was the product of contact with Africa according to Ivan Van Sertima. This culture created “elongated man” figurines as well as a greenstone statue of a man holding a were-jaguar. This culture was the first to mix (-5[1])latex with morning-glory juice to create the rubber balls used in a ceremonial game. (-5[2])Each of the ten monumental basalt sculptures (10[1])left by this culture at San Lorenzo has a unique helmet. (10[1])For 10 points, name this Mesoamerican culture that built colossal stone heads. (10[1])■END■ (10[1])