Manus claw function in sauropod dinosaurs.

The sauropod manus is characterized by phalangeal reduction on digits II-V and the presence of a claw on digit I. This claw is rarely seen in sauropod manus tracks. It has been suggested that the manus claw was used as a weapon, or played a role in feeding. These proposals, however, have not been tested against knowledge of the detailed structure and probable functional capabilities of the manus. …