Ventral views of okapi and giraffe vertebrae showing morphologic characters.

<p>(A) Ventral view of <i>Okapia johnstoni</i> C5 vertebra. (B) Ventral view of <i>Okapia johnstoni</i> C6 vertebra. (C) Ventral view of <i>Okapia johnstoni</i> C7 vertebra. (D) Ventral view of <i>Giraffa camelopardalis</i> C5 vertebra. (E) Ventral view of <i>Giraffa camelopardalis</i> C6 vertebra. (F) Ventral view of <i>Giraffa camelopardalis</i> C7 vertebra. The shape of the ventral vertebral body and intertubercular plate is shown in blue, and the ventral ridge, when present, is drawn in green.