Cairichnium leonardii dinosaur track (Dakota Sandstone; Lower Cretaceous; eastern side of Dinosaur Ridge,  west of Denver, north-central Colorado, USA)
James St. John via Compfight cc

Fossilized in the Digital Domain

Footprints can be a tricky thing. Most of the world that we live it can prove difficult for us to leave a mark behind. I work in a classroom which has polished wooden floors and a school with tiled hallways. I walk to and from my campus on manicured pathways and at the end of…