To a fair extent the appearance of predatory dinosaur trackways follows the evolution of the skeletons. Realistic dinosaur costume The best known of early theropod trackway faunas is that of the Late Triassic-earliest Jurassic found in the Newark and Hartford Basins of New Jersey and Connecticut. The prints found there were the first dinosaur remains described in this country, although they were first thought to belong to birds. Dinosaur costume They range from intermediate in size to fairly large. Alas, hardly any skeletal remains come from these strata.4 This is too bad because some of the theropod prints seem surprisingly advanced for the time.
Until very recently, it was thought that the Late Jurassic Morrison Formation produced many skeletons, but few prints. walking dinosaur costume Actually, whole fields of prints have been sitting out there in plain view all the time, but they went hardly noticed until recently. s While theropod prints may make up the bulk of the Newark- Hartford trackways, they make up only a small percentage of the Morrison prints, just as they make up a small fraction of the Morrison skeletal fauna.