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corallite
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corallite
corallite (ˈkɒrəlaɪt) [f. L. corall-um + -ite.] 1. A fossil coral.1815 W. Phillips Outl. Min. & Geol. (1818) 141 Petrifactions of marine animals as corallites, enchrinites, pentacrinites. 1834 Beckford Italy I. 364 Squabbles arise about the genus of a coralite. 2. = corallet.1861 J. R. Greene Man. A...
Oxford English Dictionary
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Corallite
The inner surface of the corallite is known as the calyx. Where there is no corallite wall, the blades are known as septocostae.
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Septum (coral)
In corals, a septum (plural septa) is one of the radiating vertical plates lying within the corallite wall. Outside the corallite wall these plates are known as costae (singular costa). The septa may be thick, thin or vary in size.
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intercoracoid
intercoracoid, -corallite, -cosmic etc.: see inter- prefix.
Oxford English Dictionary
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Costa (coral)
In corals, a costa (plural costae) is one of the vertical plates lying outside the corallite wall, a continuation of a septum (plural septa) which lies
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Lobactis
The polyp can be up to long and is embedded in a cup shaped hollow known as a corallite, surrounded by calcareous material. Outside the corallite the ribs continue, now known as costae, bearing rows of tiny spines.
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Heliolites
Members of the genus are distinguished by a prominent tubular coenenchyme (the tissue linking neighboring polyps) with 14–17 tubules around each corallite
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Dactylotrochus
As the coral grows, certain parts of the corallite wall and septa develop more than others and two or more petal-like lobes grow, often recurving. The septa are very numerous; they are narrow except near the corallite wall and there is no central columella.
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Alveopora fenestrata
The corallite walls are composed of compacted spines and rods, and the septa have long, tapering spines which are joined together low in the corallite.
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Acroporidae
The name is derived from the Greek "akron" meaning "summit" and refers to the presence of a corallite at the tip of each branch of coral. There is a corallite at the tip of each branch and, with the exception of Astreopora, these are small with up to twelve septa in two cycles.
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Isophyllia
There are three or more cycles of septa in each corallite, all equal in size. A narrow costate coenosteum separates the corallites.
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Pleuractis paumotensis
The polyp can be up to long and is embedded in a cup shaped hollow known as a corallite, surrounded by calcareous material. Outside the corallite wall the ribs continue, now known as costae, bearing rows of tiny spines. The colour is usually brown.
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Isastrea
Description
Isastrea belonged to a group known as the hexacorals, so named for the shape of each individual polyp skeleton (corallite). Each corallite was between and in diameter. In addition, 30–80 septa (walls dividing body cavities) were present in each animal.
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Lobophyllia hemprichii
Each corallite has a number of septa (vertical blades inside the corallite cup) which taper in thickness and have tall sharp teeth. The thick, fleshy polyps can retract back into the corallite cups in which they sit or extend their tentacles to feed.
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Favites spinosa
The septa (stony ridges between the corallite walls) are straight and widely separated, alternately long and short, and rough due to the distinctive serrated The corallite walls are off-white and the corallite centres are dark.
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