Characters: Colonies are encrusting or composed of
thin unifacial laminae often arranged in oblique
overlapping whorls and sometimes forming tubes.
Corallites are immersed or ...
Characters: Colonies are irregular thick plates
with columnar upgrowths. Corallites are crowded
and immersed; those on upgrowths have a slight
formation of a lower lip. The co ...
Characters: Colonies are massive, the surface
being flat or consisting of an irregular series of
mounds or short columns. The coenosteum is covered
with papillae which are usu ...
Characters: Colonies are submassive or are flat
plates, with or without nodular upgrowths.
Corallites are small; immersed on flat parts of
colonies, exsert on upgrowths. The l ...
Characters: Colonies are encrusting to submassive
with exsert corallites surrounded by a neat circle
of thecal papillae. Coenosteum papillae are also
prominent, giving colonie ...
Characters: Colonies are usually flat plates with
nodular upgrowths at their centre. Corallites are
crowded and immersed. Thecal and coenosteum
papillae are present although n ...
None
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