A Basal Dromaeosaurid and Size Evolution Preceding Avian Flight

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Science  07 Sep 2007:
Vol. 317, Issue 5843, pp. 1378-1381
DOI: 10.1126/science.1144066
Fig. 2.

Mahakala omnogovae IGM 100/1033, holotype. (A) Rightulna in lateral (right) and medial (left) views. (B) Ilium in medial (top) and lateral (bottom) views. (C) Femurinposterior (left) and lateral (right) views. (D) Tibia in anterior view. (E) Left metatarsus in anterior view. (F) Right raptorial claw. (G) Midcaudal vertebrae. Scale bars, 1 cm in (B) to (E) and 5 mm in (A), (F), and (G). Abbreviations are as follows: aa, ascending process of astragalus; as, astragalus; bf, brevis fossa; brs, brevisshelf; bs, biccipital scar; ca, calcaneum; cc, cnemial crest; ch, chevron; fc, fibular crest; fi, fibula; gtr, greater trochanter; lr, lateralridge; lc, lateral crest; mco, medial condyle; mt, metatarsal; obr, oblique ridge; pat, posterior antitrochanter; prz, prezygapophysis; pt, posterior trochanter; ts, trochanteric shelf.