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Soleneiscus Hispidus
''Soleneiscus hispidus'' is a species of calcareous sponge in the family Dendyidae. The sponge was first described in 1931 by Holger Valdemar Brøndsted as ''Leucosolenia hispida''. According to the Australian Faunal Directory it is known only from the Australian Antarctic Territories, where it has been found at a depth of 350–385 m on the Wilhelm II Coast Wilhelm may refer to: People and fictional characters * William Charles John Pitcher William John Charles Pitcher (21 March 1858 – 2 March 1925), known as Wilhelm or C. Wilhelm, was an English people, English artist, costume and scenery desig .... References Clathrinida Sponges described in 1931 {{calcarea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holger Valdemar Brøndsted
Holger Valdemar Brøndsted (1893–1977) was a Danish zoologist, teacher and writer. He earned his first degree from Aarhus University, and then studied natural sciences at the University of Copenhagen. This led to his working as an assistant to Professor Johan Erik Vesti Boas at the Agricultural University's zoological laboratory, as both a teacher and researcher. Following his marriage in 1919, he went to work at Birkerød State School in 1920, initially working as a part-time teacher, but 1921 as an assistant professor. This led to his writing several popular biology books. While teaching, he resumed his scientific studies, first at the Carlsberg Foundation's Biological Institute with Albert Fischer, and later at Stockholm University (1934-1936), where he earned his doctorate with the thesis, ''Entwicklungsphysiologische Studien über Spongilla lacustris'' (Studies of the developmental physiology of ''Spongilla lacustris''). His interest in developmental physiology led to a se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour, or ecological niche. In addition, palaeontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. About 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomen". The first part of a binomen is the name of a genus to which the species belongs. The second part is called the specific name (zoology), specific name or the specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calcareous Sponge
The calcareous sponges or calcereans are sponges that make up the class Calcarea, characterized by spicules made of calcium carbonate in the form of high-magnesium calcite or aragonite. While the spicules in most species are triradiate (with three points in a single plane), some species may possess two- or four-pointed spicules.''Treatise on Invertebrate Paleontology'' Part E, Revised. Porifera, Volume 3: Classes Demospongea, Hexactinellida, Heteractinida & Calcarea, xxxi + 872 p., 506 fig., 1 table, 2004, availablhere .''Treatise on Invertebrate Paleontology'' Part E, Revised. Porifera, Volumes 4 & 5: Hypercalcified Porifera, Paleozoic Stromatoporoidea & Archaeocyatha, liii + 1223 p., 665 figs., 2015, availablhere . Unlike the far more common siliceous sponges, calcareans lack microscleres, tiny spicules which reinforce the flesh. In addition, their spicules develop from the outside-in, mineralizing within a hollow organic sheath. Biology All sponges in this class are strictly m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendyidae
Dendyidae is a family of calcareous sponges, which six genera Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial s .... Dendyidae contains the following genera: * ''Genus: Ascandra'' * Genus '' Dendya'' * Genus: '' Leuclathrina'' *Genus: '' Neoernsta'' *Genus '' Robspongia'' *Genus '' Soleneiscus'' References Clathrinida Sponge families {{calcarea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Faunal Directory
The Australian Faunal Directory is an online catalogue of taxonomic and biological information on all animal species known to occur within Australia. It is a database produced by the Department of Climate Change, Energy, the Environment and Water of the Government of Australia. By May 12, 2021, the directory had collected information on about 126,442 species and subspecies In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog .... It includes the data from the discontinued ''Zoological Catalogue of Australia'' and is regularly updated. Started in the 1980s, its goal is compile a "list of all Australian fauna including terrestrial vertebrates, ants and marine fauna" and create an "Australian biotaxonomic information system".''Commonwealth Record'', Volume 5, issues 26–34, p. 1282. Australi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaiser Wilhelm II Land
Kaiser Wilhelm II Land is a part of Antarctica lying between Cape Penck at 87° 43'E and Cape Filchner at 91° 54'E. Princess Elizabeth Land is located to the west, and Queen Mary Land to the east. The area is claimed by Australia as part of the Australian Antarctic Territory, but like other territorial claims in Antarctica this is not universally recognized. Exploration The area was discovered on 22 February 1902, during the ''Gauss'' expedition of 1901–1903 led by Arctic veteran and geologist Erich von Drygalski. Drygalski named it after the sitting Kaiser Wilhelm II who had funded the expedition with 1.2 million Goldmarks. The expedition also discovered the Gaussberg, a extinct volcano, which was named after mathematician and physicist Carl Friedrich Gauss Johann Carl Friedrich Gauss (; ; ; 30 April 177723 February 1855) was a German mathematician, astronomer, geodesist, and physicist, who contributed to many fields in mathematics and science ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clathrinida
Overview The Clathrinida are an order of calcareous sponges found in marine environments. Clathrinida is a well-known non-monophyletic order under the class of calcarea, and was first named in 1958 by Willard D Hartman based on corticalization (body cortex) The fossil record of calcarea is relatively poor due to the nature of sponge – the fossil remains often don’t have the diagnostic spicules – but it’s certain that they are common in the Paleozoic and Mesozoic but rare in the Cenozoic These sponges have an asconoid structure and lack a true dermal membrane or cortex. The spongocoel is lined with choanocytes. One of the most famous species of Clathrinida is lemon sponge, featuring a bright yellow color and a slightly elongated-globular growth form Basic Structure The Clathrinida is a rich and variable tubular marine sponge with calcareous skeletons. The sponge is organized into simple tubes called the olynthus with an internal and external layer. Both layers ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
