Figure 3
From: The earliest Tyrannida (Aves, Passeriformes), from the Oligocene of France
Drawings of right ulna of the Luberon fossil NT-LBR-014 and ulnas of extant species (Passeri, Acanthizidae; Tyranni, Calyptomenidae and Tyrannidae). (a,b,e), left ulnas; (c,d,f), right ulnas; (a,c,e), cranial views; (b,d,f), ventral views. tuber. lig. collat. ventr., tuberositas ligamenti collateralis ventralis. Scale bars, 1 mm.
