Pseudodon shell DUB1006-fL (original) (raw)

The Pseudodon shell DUB1006-fL or Pseudodon DUB1006-fL (540,000-430,000 BP) is a fossil freshwater shell of Pseudodon vondembuschianus trinilensis found at Trinil, Java, Indonesia. The shell has a zigzag engraving supposedly made by Homo erectus, which could be the oldest known anthropogenic engraving in the world.