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Cribrospongiidae
Cribrospongiidae is a family of glass sponges in the order Sceptrulophora Sceptrulophora (from Ancient Greek, σκῆπτρον, ''skêptron'' - "sceptre" and -φόρος, ''-phóros'' - "bearing") is an order of hexactinellid sponges, commonly known as Glass sponges, characterized by sceptrule spicules, that is, "micr .... References External links * * * Sponge families Hexactinosa Extant Ordovician first appearances {{sponge-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sceptrulophora
Sceptrulophora (from Ancient Greek, σκῆπτρον, ''skêptron'' - "sceptre" and -φόρος, ''-phóros'' - "bearing") is an order of hexactinellid sponges, commonly known as Glass sponges, characterized by sceptrule spicules, that is, "microscleric monactinal triaxonic spicules that include clavules with terminel umbels or smooth heads." Species of the order Sceptrulophora have existed since the Jurassic period, and still flourish today. While there is ongoing debate about the organization of various taxa in Sceptrulophora, the monophyly In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic grou ... of the taxon Sceptrulophora is supported by the presence of sceptrules in most of the extant species, and has recently been further supported by DNA sequencing.MARTIN DOHRMANN, CHRISTIAN GÖC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cribrospongia
''Cribrospongia'' is an extinct genus of prehistoric sponges in the family Cribrospongiidae. The species ''C. elegans'' is from the Jurassic period and has been found in Germany. See also * List of prehistoric sponge genera This list of prehistoric sponges is an attempt to create a comprehensive listing of all genera that have ever been included in the phylum Porifera, excluding purely vernacular terms. The list includes all commonly accepted genera, but also genera ... References * Cours élémentaire de paléontologie et de géologie stratigraphiques. A d'Orbigny, 1849 * Note sur les polypiers fossiles. A d'Orbigny, 1849 External links * * Hexactinellida genera Hexactinosa {{paleo-sponge-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teylers Museum
Teylers Museum () is an art, natural history, and science museum in Haarlem, Netherlands. Established in 1778, Teylers Museum was founded as a centre for contemporary art and science. The historic centre of the museum is the neoclassical Oval Room (1784), which was built behind the house of Pieter Teyler van der Hulst (1702–1778), the so-called ''Fundatiehuis'' (Foundation House). Pieter Teyler was a wealthy cloth merchant and banker of Scottish descent, who bequeathed his fortune for the advancement of religion, art, and science. He was a Mennonite and follower of the Scottish Enlightenment. History In his will, Pieter Teyler stipulated that his collection and part of his fortune should be used to establish a foundation for their promotion: Teylers Stichting. The Teyler legacy to the city of Haarlem was split into two societies: Teylers First or Theological Society (Dutch: ''Teylers Eerste of Godgeleerd Genootschap''), intended for the study of religion and Teylers Second ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sponge Families
Sponges, the members of the phylum Porifera (; meaning 'pore bearer'), are a basal animal clade as a sister of the diploblasts. They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells. Sponges have unspecialized cells that can transform into other types and that often migrate between the main cell layers and the mesohyl in the process. Sponges do not have nervous, digestive or circulatory systems. Instead, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes. Sponges were first to branch off the evolutionary tree from the last common ancestor of all animals, making them the sister group of all other animals. Etymology The term ''sponge'' derives from the Ancient Greek word ( 'sponge'). Overview Sponges are similar to other animals in that they are multicellular, heter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexactinosa
Hexasterophora are a subclass of sponges, in the class Hexactinellida. The Hexasterophora first appeared in the Ordovician and is separated into five recent orders, including the Lyssacinosa, the Hexactinosa, and the Lychniscosa, all of which have living representatives in the seas today. Hexasterophorans have skeletons composed of overlapping six-rayed spicules. The sponge is commonly firmly attached by its base to a hard substratum; less often rooted by the anchoring spicules and rarely inserted directly into the loose bottom sediments. The three groups are differentiated by the extent of fusion of adjacent spicules. The Lyssacinosa, Hexactinosa, and Lychniscosa appear sequentially in the fossil record. The least fused group, the Lyssacinosa, appears in the Ordovician, while the intermediate group, the Hexactinosa is known from the Devonian. Finally, the Lychniscosa, with the most tightly interlocking spicules is first found in rocks of Triassic The Triassic ( ) is a g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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