Figure 9.
Caudal vertebrae of the theropod Aerosteon riocoloradensis.
Anterior and mid caudal centra (MCNA-PV-3137; cast) in left lateral view. (A)-Anterior caudal centrum. (B)-Mid caudal centrum. Scale bar equals 10 cm. Abbreviations: ach, articular surface for a chevron; pl, pleurocoel; se, septum.