Extended Data Fig. 3: Anatomy of Ambopteryx, IVPP V24192.
From: A new Jurassic scansoriopterygid and the loss of membranous wings in theropod dinosaurs
a–d, Interpretative drawings of the neck and pectoral girdle (a), caudal vertebrae and pygostyle (b), left forelimb (c) and pelvis and left hindlimb (d). Abbreviations as in Figs. 1, 2, except for: ca, caudal vertebrae; cm, calcaneum; de, deltopectoral crest of humerus; do, dorsal vertebrae; I–III, metacarpals I–III; ip, iliac peduncle of ilium; mtII–IV, metatarsals II–IV; p1–4, pedal digits I to IV; and st, styliform element. Scale bars, 10 mm (a–d).
