The caudal vertebrae of ostriches are highly pneumatic. This mid-caudal vertebra of an ostrich ("Struthio camelus"), LACM Bj342, is shown in dorsal view (top), anterior, left lateral, and posterior views (middle, left to right), and ventral view (bottom). The vertebra is approximately 5cm wide across the transverse processes. Note the pneumatic foramina on the dorsal, ventral, and lateral sides of the vertebra.