Forearm Range of Motion in Australovenator wintonensis (Theropoda, Megaraptoridae)
Fig 3
Articulated right humerus and antebrachium.
(A) Right humerus and antebrachium flexed in medial view. (B) Right humerus and antebrachium flexed in lateral view. (C) Cranial view of radius and ulna in flexion displaying the distal movement of the radius indicated by the black arrow. (D) Distal articulation of the ulna and radius during flexion. (E) Right humerus and antebrachium extended in medial view. (F) Right humerus and antebrachium extended in lateral view. (G) Cranial view of radius and ulna in extended position with no distal displacement of the radius. (H) Distal articulation of the ulna and radius during extension. (I) Distal view of the humerus displaying the radial and ulna condyles. (J) Cranial view of the right humerus and antebrachium in extension displaying the position of the radial condyle which forces the distal displacement during flexion. Abbreviations: radial condyle (rc), ulna condyle (uc).
