Fossil tracks – the clear imprints of living creatures – have often sparked the imagination of those who have found them. When, in 1802, a young boy found footprints in stone on his family’s South Hadley, Massachusetts farm some of the tracks wound up as a doorstop. Visitors joked that the family must have raised some hearty chickens if the bird-like footprints were imprinted on solid rock, while religious authorities suspected that the tracks might have been left by Noah’s raven when it landed after the Noachian Deluge. Later, the Amherst naturalist and theologian Edward Hitchcock would accumulate a massive store of similar tracks found throughout the Connecticut Valley. He suspected that many of the three-toed tracks were made by