Michael Crichton used the name "Velociraptor" for the much larger raptor in his novels, on which the first two movies were based. The depiction of the dromaeosaur in the original "Jurassic Park" movie, while accurate for its time, is now known to have been inaccurate in some respects, such as the lack of feathers. While "Jurassic Park III" attempted to address this last oversight by adding quill-like structures around the head of some of its dromaeosaurs, they did not resemble the structure or distribution of actual dromaeosaurid feathers known from fossil remains.