Osteological correlates of manual muscles in basal Sauropodomorpha.

<p>Left manus of <i>Plateosaurus engelhardti</i> (MB.R. 4430.173 skelett C) in dorsal (A) and palmar (B) views depicting osteological correlates of various manual muscles. Abbreviations: dc1, distal carpal one; dc2, distal carpal two; APLi, <i>M</i>. <i>abductor pollicis longus</i> insertion; ECRi, <i>M</i>. <i>extensor carpi radialis</i> insertion; EDPo, <i>M</i>. <i>extensor digitorum profundus</i> origin; EDPi, <i>M</i>. <i>extensor digitorum profundus</i> insertion; EDSi, <i>M</i>. <i>extensor digitorum superficialis</i> insertion; EDSo, <i>M</i>. <i>extensor digitorum superficialis</i> origin; FDLi, <i>M</i>. <i>flexor digitorum longus</i> insertion; FDPi, <i>M</i>. <i>flexor digitorum profundus</i> insertion; FDPo, <i>M</i>. <i>flexor digitorum profundus</i> origin; FDSi, <i>M</i>. <i>flexor digitorum superficialis</i> insertion; FDSo, <i>M</i>. <i>flexor digitorum superficialis</i> origin; mcI, metacarpal one; mcII, metacarpal two; mcIII, metacarpal three; mcV, metacarpal five; ph.I.1, first phalanx of digit one; ph.I.2, second phalanx of digit one; ph.II.1, first phalanx of digit two. Scale bar: 5 cm.