Extended Data Fig. 4: Shoulder girdle, forelimb, hindlimb anatomy of Anteavis crurilongus (PVSJ 1085).
From: A Carnian theropod with unexpectedly derived features during the first dinosaur radiation
Right scapula and coracoid in lateral (a), medial (b), and posterior (c) views; right humerus in anterior and slightly medial (d), posterior and slightly lateral (e), proximal (f), lateral (g), and medial (h) views; proximal end of the right ulna in lateral (i), medial (j), and proximal (k) views; distal end of the right ulna in lateral (l), medial (m), and proximal (n) views; right manual phalanx in dorsal (o), ventral (p), lateral (q), and medial (r) views; left femur in lateral (s), medial (t), anterior (u), posterior (v), proximal (w), and distal (x) views; right tibia in lateral (y), medial (z), anterior (aa), posterior (ab), proximal (ac), and distal (ad) views; left astragalus in proximal (ae), distal (af), anterior (ag), posterior (ah), medial (ai), and lateral (aj) views; detail of the groove in the left astragalus in proximal view (ak); left metatarsal I in dorsal (al) and medial (am) views; left metatarsal II in dorsal (an) and lateral (ao) views; left metatarsals III and IV and left phalanx 1 of digit I in dorsal (ap) and lateral (aq) views; left metatarsal V in dorsal (ar), ventral (as), and proximal (at) views; distal tarsal 3 in proximal (au), and distal (av) views; distal tarsal 4 in proximal (aw), and distal (ax) views. Abbreviations: aaf, surface for astragalar ascending process; ae, anterior expansion; afh, articular facet for the humerus; amc, anteromedial corner; amt, anteromedial tuber; alt, anterolateral tuber; ap, ascending process; at, anterior tuberosities; bt, biceps tuber; c, coracoid; cc, cnemial crest; cco, calcaneal concavity; cf, coracoid foramen; ct, crista tibiofibularis; dip, dorsal intercondylar process; dt, dorsal tuberosity; dvd, dorsoventral depression; dpc, deltopectoral crest; ect, ectepicondyle; ent, entepicondyle; f, foramen; fc, fibular crest; ff, fibular facet; ft, fourth trochanter; g, glenoid; gr, groove; gt, greater trochanter; hh, humeral head; lc, lateral condyle; lclp, lateral collateral ligament pit; lf, lateral flange; llp, lateral ligament pit; ls, ligament scar; lt, lesser trochanter; mc, medial condyle; mlp, medial ligament pit; mp, medial protuberance; mt, medial tuberosity; n, notch; pp, post-glenoid process; r, ridge; rc, radial condyle; rf, fossa for articulation with the radius; s, scapula; sr, glenoidal sharp rim; ol, olecranon; ot, ovoid tuberosity; plf, posterolateral flange; pf, posterior fossa; pt, posterior tuberosities; rf, radial fossa; t, tuberosity; tf, tibial facet; ts, trochanteric shelf; uaf, articular surface for the ulnare; uc, ulnar condyle; vip, ventral intercondylar process. Scale bars: a–e g–r 10 mm, e 20 mm, s-ad ak-as 50 mm, ae-aj al-ax 10 mm, ak 10 mm.
