costa

Summary

pl. Costae, adj. Costal, adj. Costate a costa is a continuation of the septal sheet beyond the corallite or corallum wall; seen in transverse section as radial elements projecting beyond the line of the walls; seen in longitudinal views as fine ridges on the external faces of walls. See also Costoseptum.

Orthography

Not yet available.

Modifiers

• absent costa
• absent without replacement costa
• alternating with septa costa
• one costa to a group of septa costa
• present costa
• replaced by granules costa
• septal extensions costa

Description

Not yet available.

This version was contributed by Ken Johnson on 22-Apr-2008 14:35.