Claim: The manus (hand) of the Eodromaeus (a basal theropod dinosaur) had five fingers, with the second and third elongating towards their tips, and the fourth and fifth were very thin and short.
Evidence: Eodromaeus (meaning "dawn runner") was an extinct genus of probable basal theropod dinosaurs from the Late Triassic of Argentina. The manus (hand) had five fingers, with the second and third elongating towards their tips. In contrast, the fourth and fifth fingers were very thin and short.