Hexactinellid
Class of sponges with siliceous spicules / From Wikipedia, the free encyclopedia
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Hexactinellid sponges are sponges with a skeleton made of four- and/or six-pointed siliceous spicules, often referred to as glass sponges. They are usually classified along with other sponges in the phylum Porifera, but some researchers consider them sufficiently distinct to deserve their own phylum, Symplasma. Some experts believe glass sponges are the longest-lived animals on earth;[2] these scientists tentatively estimate a maximum age of up to 15,000 years.
Quick Facts Scientific classification, Subgroups ...
Hexactinellid sponges | |
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"Hexactinellae" from Ernst Haeckel's Kunstformen der Natur, 1904 | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Porifera |
Class: | Hexactinellida Schmidt, 1870 |
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