icnites of dinosaurs of two families, iguanodon and theropod.

abstract aged ancient animal background big biology bone burgos deposit design dinosaur dinosaurs evolution extinct extinction families foot footprint footstep fossil gray ichnite icnites iguanodon impression jurassic material model museum nature old paleontology park past pattern prehistoric print regumiel relic remains reptile rock rough science sierra spain stone surface texture textured theropod track two wall white