Fig. 1
From: A North American stem turaco, and the complex biogeographic history of modern birds
Skeletal morphology of total clade musophagids. (a) Complete skeleton of Foro panarium holotype USNM 336261. Scale bar equals 10 cm. (b) 3-dimensional CT rendering of the pectoral region of Ross’s Turaco (Musophaga rossae) GCO 1142 (Georgia College Ornithology, Georgia College and State University, Milledgeville, GA). LF – left ramus of furcula, RC – right coracoid, RF – right ramus of furcula, S – sternum. 153:1 denotes unfused midline of furcula, which optimizes as an unambiguous synapomorphy of a Foro + Musophagidae clade. (c) Pectoral region of F. panarium. LH – left humerus, RS – right scapula. (d) Cranial region of USNM 336261. 50:1 processus costales of axis absent. 152:1 bill short and stout with broad processus maxillaris of the os nasale. (e) Distal end of right leg of USNM 336261. 109:0 – trochlea metatarsi IV without large trochlea accessoria. 106:0 tendon of musculus flexor hallucis longus not enclosed in bony canal