These unusual petroglyphs were found in a burial mound in Stjørdal, central Norway. (Credit: Anne Haug, NTNU Museum of Natural History and Archaeology)
It looked to be a routine excavation of what was thought to be a burial mound. But beneath the mound, archaeologists from the Norwegian University of Science and Technology's Museum of Natural History and Archaeology found something more: unusual Bronze Age petroglyphs. "We believe these are very special in a Norwegian context," says museum researcher and project manager Anne Haug.
More in ScienceDaily (Jan. 31, 2011)