Ключевые слова: ancient, animal, animals, background, dinosaur, dinosaurs, extinct, feet, foot, footed, footprint, footprints, fossil, fossils, geological, geology, herpetology, historical, history, jurassic, land, lizard, lizards, old, paleontology, period, prehistoric, prehistorical, prehistory, print, prints, remain, remains, reptile, reptiles, reptilian, reptilians, research, rock, science, specie, species, stone, theropod, theropoda, theropods, time, track, tracks,