Saurischia is one of the two basic divisions of dinosaurs, classified by their hip structure. Saurischia and Ornithischia were originally called orders by Harry Seeley in 1888, though today most paleo

Silesauridae is an extinct family of early dinosauriforms which lived during the Triassic Period. Their fossils have been found in Europe, North America, South America, and Africa, reaching peak diver