 More complete aetosaur remains were found from the Lower <unk> of Germany in the 1870s . Among them were complete articulated skeletons of 22 aetosaurs . These specimens were found in a large sandstone outcrop near Stuttgart and were preserved together in an area less than 2 square metres in size . The animals were probably buried under lake sediment soon after they died , with the flow of water repositioning their bodies on the lake bed and putting them in close proximity to one another . In 1877 , German paleontologist Oskar Fraas assigned these specimens to the newly erected genus Aetosaurus . Fraas named the genus after the skull 's resemblance to the head of an eagle , with a narrow , elongate skull and a pointed snout . 
