A three dimensional reconstruction of a pair of dinosaur tracks from the Paluxy River in Texas. A long-necked sauropod passed through, followed by (or perhaps chased by) a meat-eating theropod.
credit : Falkingham PL, Bates KT, Farlow JO (2014) Historical Photogrammetry: Bird's Paluxy River Dinosaur Chase Sequence Digitally Reconstructed as It Was prior to Excavation 70 Years Ago. PLoS ONE 9(4): e93247. doi:10.1371/journal.pone.0093247