Comparison of outline drawings of ankylosaur ischia.

<p>A–F, left ischium in lateral view. A, <i>Ankylosaurus magniventris</i> (AMNH 5214), redrawn from <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0104551#pone.0104551-Carpenter5" target="_blank">[28]</a>; B, <i>Scolosaurus cutleri</i> (TMP 2001.42.19), redrawn from <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0104551#pone.0104551-Arbour1" target="_blank">[31]</a>; C, <i>Edmontonia rugosidens</i>, redrawn from <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0104551#pone.0104551-Coombs2" target="_blank">[25]</a>; D, <i>Cedarpelta bilbeyhallorum</i> (CEUM 10266) from <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0104551#pone.0104551-Carpenter7" target="_blank">[44]</a>; E, cf. <i>Pinacosaurus</i>, MPC 100/1305 in lateral view, from <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0104551#pone.0104551-Carpenter4" target="_blank">[22]</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0104551#pone.0104551-Arbour4" target="_blank">[66]</a>; F, <i>Chuanqilong chaoyangensis</i> in lateral view; G–H, right ischium in lateral view; G, <i>Chuanqilong chaoyangensis</i>; H, <i>Liaoningosaurus paradoxus</i> (IVPP V12560). Scar bars in A–G equal 10 cm; scale bar in H equals 1 cm. [planned for column width].</p>