PHYLUM CNIDARIA

• Sclerodermite - structural unit of septum
• Sclerodermites are arranged in vertical series into traberculae
• Laminar - without intervening openings between the traberculae (each septum is composed of a series of traberculae)
• Fenestrate - with pores or perforations between traberculae
• Exsert - septa rise above theca
• Dentitions or teeth = formed along the upper margin of the septum when the trabercular axis projects beyond the connective structure
• Headlike - rounded or granular teeth
• Acute - sharp and pointed teeth
• Lacerate - teeth cut into irregular lobes
• Hirsute - hairlike teeth
• Synapticulae - rods or bars connecting opposing faces of adjacent septa
• Loculus - space between adjacent septa
• Discoid - horizontal theca
• Turbinate - conical in shape
• Patellate - flattened conical
• Cupoloid - flat base and highly convex upper surface
• Cuneiform - wedge-shaped
• Encrusting - thin continuous sheets adherent throughout the substrate
• Foliaceous or frondose - thin, expanding, overlapping sheets with small basal attachment
• Reniform - foliaceous and kidney-shaped
• Massive - thick masses or heads
• Ramose - branching like a tree
• Caespitose - branches of unequal height forming clumps or tufts
• Corymbose - branchlets almost parallel, reaching almost the same height