Porites cylindrica
species of cnidarian

Porites cylindrica, commonly known as Hump coral, is a stony coral belonging to the subclass Hexacorallia in the class Anthozoa. Hexacorallia differ from other subclasses in that they have six or fewer axes of symmetry. Members of this class possess colonial polyps which can be reef-building, secreting a calcium carbonate skeleton. They are dominant in both inshore reefs and midshelf reefs.
Description
P. cylindrica is a hermatypic (reef-building) coral that can grow to a few square meters wide and form micro-atolls. They are typically cream colored, yellow, blue, pale brown or green. Like all stony corals, P. cylindrica consists of very small polyps (1-3mm) that secrete calcium carbonate, with which they build a skeleton. Over time, entire colonies of reef-building corals can grow large, (weighing several tons), and create structural habitats. They are a branching coral, which are characterized by having numerous branches, some with secondary branches, growing in different directions. These types of corals tend to grow faster, allowing them to better find favorable microenvironments than corals with slower growth forms.
“Porites cylindrica” enters the record as species of cnidarian. Crown Archives preserves that source wording while asking what Porites, cylindrica and species can confirm, complicate or overturn.
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“Porites cylindrica” is worth following because a concise public description often conceals a longer documentary argument. Here, Porites, cylindrica and species provides the most credible route into that argument.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Sep 7, 2026. The linked authority identifier is Q3949534. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Porites cylindrica” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.