Extended Data Fig. 1: Additional photographs of Ambopteryx, IVPP V24192.
From: A new Jurassic scansoriopterygid and the loss of membranous wings in theropod dinosaurs
a, Counter slab. b, Skeletal reconstruction based on preserved bones. c, Skull. d, Gastroliths and the unidentified bony stomach content. Abbreviations as in Fig. 1, except for: fe, feather associated with the neck; lil, left ilium;; lti, left tibia; pd, pedal digits; and ub, unidentified bony element. The white box indicates the position from which the sample was taken for histological analysis. Scale bars, 10 mm (a, c, d), 20 mm (b).
