They portrayed the animals with the size, proportions, and snout shape of Deinonychus rather than Velociraptor.
In the past, other dromaeosaurid species, including Deinonychus antirrhopus and Saurornitholestes langstoni,
have sometimes been classified in the genus Velociraptor.
Despite this, according to Ostrom,
Crichton stated that the Velociraptor of the novel was based on Deinonychus in almost every detail, and that only the name had been changed.