Fig. 8From: Evolution and development of the bird chondrocraniumFormation of the trabecula communis. In most birds, the paired trabeculae have been described to grow rostrally together in the midline (left) to form the trabecula communis (middle), whereas in Falco and Coturnix the trabeculae fused with an intertrabecula (right) to form the trabecula communis. Modified from Wada et al. [82]Back to article page