Keratosa

	Keratosa Keratosa, the keratose sponges or horny sponges, is a subclass of demosponge Demosponges (Demospongiae) are the most diverse class in the phylum Porifera. They include 76.2% of all species of sponges with nearly 8,800 species worldwide (World Porifera Database). They are sponges with a soft body that covers a har ...s.Horny sponges and their affairs: On the phylogenetic relationships of keratose sponges. Dirk Erpenbeck, Patricia Sutcliffe, Steve de C.Cook, Andreas Dietzel, Manuel Maldonado, Rob W.M.van Soest, John N.A.Hooper and Gert Wörheide, Molecular Phylogenetics and Evolution, Volume 63, Issue 3, June 2012, Pages 809-816, References External links * Keratosaat the World Porifera Database Sponge subclasses {{Demosponge-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Keratosa Keratosa, the keratose sponges or horny sponges, is a subclass of demosponge Demosponges (Demospongiae) are the most diverse class in the phylum Porifera. They include 76.2% of all species of sponges with nearly 8,800 species worldwide (World Porifera Database). They are sponges with a soft body that covers a har ...s.Horny sponges and their affairs: On the phylogenetic relationships of keratose sponges. Dirk Erpenbeck, Patricia Sutcliffe, Steve de C.Cook, Andreas Dietzel, Manuel Maldonado, Rob W.M.van Soest, John N.A.Hooper and Gert Wörheide, Molecular Phylogenetics and Evolution, Volume 63, Issue 3, June 2012, Pages 809-816, References External links * Keratosaat the World Porifera Database Sponge subclasses {{Demosponge-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Demosponge Demosponges (Demospongiae) are the most diverse class in the phylum Porifera. They include 76.2% of all species of sponges with nearly 8,800 species worldwide (World Porifera Database). They are sponges with a soft body that covers a hard, often massive skeleton made of calcium carbonate, either aragonite or calcite. They are predominantly leuconoid in structure. Their "skeletons" are made of spicules consisting of fibers of the protein spongin, the mineral silica, or both. Where spicules of silica are present, they have a different shape from those in the otherwise similar glass sponges. Some species, in particular from the Antarctic, obtain the silica for spicule building from the ingestion of siliceous diatoms. The many diverse orders in this class include all of the large sponges. Most are marine dwellers, but one order ( Spongillida) live in freshwater environments. Some species are brightly colored, with great variety in body shape; the largest species are ove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Chelonaplysilla Violacea ''Chelonaplysilla violacea'' is a species of sponge found mainly in New Zealand, but have been reported on both sides of the Pacific Ocean, including areas such as the Indo-Pacific, the United Arab Emirates, the Persian Gulf, Australia, and Hawaii. The color of the species is a reddish-mauve, their surface is opaque, membranous, and optically smooth, and their texture is slimy, soft, and compressible, with horny fibers protruding. References External links * * {{Taxonbar, from=Q2451636 violacea Animals described in 1883 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Réunion Réunion (; french: La Réunion, ; previously ''Île Bourbon''; rcf, label= Reunionese Creole, La Rényon) is an island in the Indian Ocean that is an overseas department and region of France. It is located approximately east of the island of Madagascar and southwest of the island of Mauritius. , it had a population of 868,846. Like the other four overseas departments, Réunion also holds the status of a region of France, and is an integral part of the French Republic. Réunion is an outermost region of the European Union and is part of the eurozone. Réunion and the fellow French overseas department of Mayotte are the only eurozone regions located in the Southern Hemisphere. As in the rest of France, the official language of Réunion is French. In addition, a majority of the region's population speaks Réunion Creole. Toponymy When France took possession of the island in the seventeenth century, it was named Bourbon, after the dynasty that then ruled France. To brea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Dendroceratida Dendroceratida is an order of sponges of the class Demospongiae. They are typically found in shallow coastal and tidal areas of most coasts around the world. They are generally characterized by concentric layers of fibers containing spongin (a collagen-like material), and by large flagellated chambers that open directly into the exhalant canals. Along with the Dictyoceratida, it is one of the two orders of demosponge Demosponges (Demospongiae) are the most diverse class in the phylum Porifera. They include 76.2% of all species of sponges with nearly 8,800 species worldwide (World Porifera Database). They are sponges with a soft body that covers a har ...s that make up the keratose or "horny" sponges, in which a mineral skeleton is minimal or absent and a skeleton of organic spongin-containing fibers is present instead. References Sponge orders {{Demosponge-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Dictyoceratida Dictyoceratida is an order of sponges in the subclass Ceractinomorpha containing five families. Along with the Dendroceratida, it is one of the two orders of demosponges that make up the keratose or "horny" sponges, in which a mineral skeleton is minimal or absent and a skeleton of organic fibers containing spongin, a collagen Collagen () is the main structural protein in the extracellular matrix found in the body's various connective tissues. As the main component of connective tissue, it is the most abundant protein in mammals, making up from 25% to 35% of the whol ...-like material, is present instead. References External links Sponge orders {{demosponge-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]