|
Dendya Triradiata
Dendya is a genus of calcareous sponges in the family Dendyidae. Species *''Dendya clathrata'' (Carter, 1883) *''Dendya quadripodifera'' Hozawa, 1929 *''Dendya tripodifera Dendya is a genus of calcareous sponges in the family 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 ...'' (Carter, 1886) *'' Dendya triradiata'' Tanita, 1943 References Clathrinida Taxa described in 1898 {{calcarea-stub ... [...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] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calcareous
Calcareous () is an adjective meaning "mostly or partly composed of calcium carbonate", in other words, containing lime (mineral), lime or being chalky. The term is used in a wide variety of Science, scientific disciplines. In zoology ''Calcareous'' is used as an adjectival term applied to anatomical structures which are made primarily of calcium carbonate, in animals such as gastropods, i.e., snails, specifically in relation to such structures as the operculum (gastropod), operculum, the clausilium, and the love dart. The term also applies to the calcium carbonate Test (biology), tests of, often, more-or-less microscopic Foraminifera. Not all tests are calcareous; diatoms and radiolaria have siliceous tests. The molluscs are calcareous organisms, as are the Calcarea, calcareous sponges (Calcarea), that have spicules which are made of calcium carbonate. Additionally, reef-building corals, or Scleractinia, are calcareous organisms that form their rigid skeletal structure th ... [...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] |
Dendya Clathrata
''Dendya clathrata'' is a species of calcareous sponge in the family 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 no .... References Clathrinida Sponges described in 1883 {{calcarea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendya Quadripodifera
Dendya is a genus of calcareous sponges in the family Dendyidae. Species *''Dendya clathrata'' (Carter, 1883) *'' Dendya quadripodifera'' Hozawa, 1929 *''Dendya tripodifera Dendya is a genus of calcareous sponges in the family 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 ...'' (Carter, 1886) *'' Dendya triradiata'' Tanita, 1943 References Clathrinida Taxa described in 1898 {{calcarea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendya Tripodifera
Dendya is a genus of calcareous sponges in the family 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 no .... Species *'' Dendya clathrata'' (Carter, 1883) *'' Dendya quadripodifera'' Hozawa, 1929 *'' Dendya tripodifera'' (Carter, 1886) *'' Dendya triradiata'' Tanita, 1943 References Clathrinida Taxa described in 1898 {{calcarea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendya Triradiata
Dendya is a genus of calcareous sponges in the family Dendyidae. Species *''Dendya clathrata'' (Carter, 1883) *''Dendya quadripodifera'' Hozawa, 1929 *''Dendya tripodifera Dendya is a genus of calcareous sponges in the family 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 ...'' (Carter, 1886) *'' Dendya triradiata'' Tanita, 1943 References Clathrinida Taxa described in 1898 {{calcarea-stub ... [...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] |
