|
Baerida
Baerida is an order of sea sponges in the subclass of Calcaronea, first described in 2000 by Radovan Borojevic, Nicole Boury-Esnault and Jean Vacelet Jean Vacelet is a French marine biologist who specialises in the underwater fauna of the Mediterranean. After earning his licence at the Faculté des Sciences de Marseille and learning to dive in 1954, he specialised in the study of sponges at th .... Species of the order Baerida are leuconoid calcareous sponges with the skeleton either composed exclusively of micro-diactines, or in which microdiactines constitute exclusively or predominantly a specific sector of the skeleton, such as choano-skeleton or atrial skeleton. Large or giant spicules are frequently present in the cortical skeleton, from which they can partially or fully invade the choanoderm. In sponges with a reinforced cortex, the inhalant pores can be restricted to a sieve-like ostia-bearing region. Dagger-shaped small tetractines (pugioles) are frequently the sole ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calcaronea
Calcaronea is a Class (biology), subclass of sea sponges in the class Calcarea. They are Calcarea with the triactines and the basal system of tetractines sagittal (i.e. the rays of the spicule make unequal angles with each other), exceptionally regular. In ontogeny the first spicules to be secreted are diactines. Choanocytes are apinucleate. Calcaronea have amphiblastula larvae External links * * Calcaronea, Sponge subclasses {{calcarea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidoleuconidae
''Lepidoleucon'' is genus of calcareous sponges in the order Baerida. It is the only genus in the monotypic family Lepidoleuconidae, and consists of a single species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ..., ''Lepidoleucon inflatum''. References Calcaronea Sponge families Taxa named by Jean Vacelet {{calcarea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radovan Borojevic
Radovan ( sr-cyr, Радован) is a Slavic male given name, derived from the passive adjective ''radovati'' ("rejoice"), itself from root ''rad-'' meaning "care, joy". It is found in Serbia, North Macedonia, Bosnia and Herzegovina, Croatia, Montenegro, Czech Republic, Slovakia, Russia, Ukraine, and Bulgaria. It is recorded in Serbia since the High Middle Ages. Male variations and diminutives (and nicknames) include Radovanče, Radan, Radánek, Rade, Rado, Radič, Radko, Radvan, Radúz, Radek, and cognates Radomir, Radomil and Radoslav. Female forms include Radka, Radana, Radomirka, Radmila, Radica. Namedays include 13 January in Croatia, and 14 January in Slovakia and Czech Republic. Notable people * Radovan (master), 13th-century Croatian sculptor and architect * Radovan Jelašić, Serbian economist * Radovan Jovićević, Serbian composer, producer and musician * Radovan Karadžić, Bosnian Serb politician and convicted war criminal * Radovan Krejčíř, Czech org ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nicole Boury-Esnault
Nicole Boury-Esnault is a retired French researcher of sponges, formerly at Centre d'Océanologie de Marseille, Aix-Marseille University. Research In 1995, Nicole Boury-Esnault and Jean Vacelet discovered a species of carnivorous sponges of the genus ''Asbestopluma'', during an exploration of a shallow cave in the Mediterranean. Caves can recapitulate the environment of the deep sea-bed due to the darkness and lack of nutrient, permitting the study of deep-sea-like regions in shallow areas of water. Carnivorous sponges, lacking the normal filter feeding apparatus, had been previously discovered during deep-sea trawls and presumed to be damaged since they did not have a known feeding mechanism. The discovery of members of the family in shallow water meant that they could be experimentally tested, which is when Boury-Esnault and Vacelet observed feeding on small crustaceans. Later they also reported on a member of the genus which used both carnivory and methanotrophy to survive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean Vacelet
Jean Vacelet is a French marine biologist who specialises in the underwater fauna of the Mediterranean. After earning his licence at the Faculté des Sciences de Marseille and learning to dive in 1954, he specialised in the study of sponges at the Marine station of Endoume, and there he has stayed faithful to both sponges and place for more than half a century. His research has included all aspects of sponges: taxonomy, habitat, biology, anatomy, their bacterial associations, and their place in the evolution of multi-celled animals. He has studied them not only in the Mediterranean but in the Indian Ocean and the Pacific. Exploration of underwater grottoes, together with Jacques Laborel and Jo Hamelin, revealed the existence of sponges dating from very ancient geological periods and the unexpected existence of carnivorous sponges, and surprisingly, the grottoes in some ways mimicked life at much greater depths. He earned one doctorate in 1958 and his doctorat ès-sciences, unde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baeriidae
Baeriidae is a family of calcareous sponges in the class Calcarea. It was named by Borojevic, Boury-Esnault, and Vacelet in 2000.Borojevic, R., Boury-Esnault, N. & Vacelet, J. (2000). A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea). ''Zoosystema'', 22(2), 203–263. The type genus is ''Baeria'' Miklucho-Maclay, 1870, by original designation, though ''Baeria'' is now considered a junior synonym A synonym is a word, morpheme, or phrase that means exactly or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are all ... of '' Leuconia'' Grant, 1833. Genera The following genera are in the family Baeriidae: *'' Eilhardia'' Poléjaeff, 1883Poléjaeff, N. (1883). Report on the Calcarea dredged by H. M. S. ''Challenger'' during the years 1873–1876. In Thomson, C. & Murray, J. (Eds.), ''Report of the Scienti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trichogypsiidae
Trichogypsiidae is a family of sponges in the class Class or The Class may refer to: Common uses not otherwise categorized * Class (biology), a taxonomic rank * Class (knowledge representation), a collection of individuals or objects * Class (philosophy), an analytical concept used differentl ... Calcarea. Genera *'' Kuarrhaphis'' Dendy & Row, 1913 *'' Leucyssa'' Haeckel, 1872 *'' Trichogypsia'' Carter, 1871 References Calcaronea Sponge families Taxa named by Nicole Boury-Esnault Taxa named by Jean Vacelet {{calcarea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order (biology)
Order ( la, wikt:ordo#Latin, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between Family_(biology), family and Class_(biology), class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. Fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Sponges
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, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Nicole Boury-Esnault
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
