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Aphaenogaster Dlusskyana
''Aphaenogaster dlusskyana'' is an extinct species of ant in the subfamily Myrmicinae known from a single Middle Eocene fossil found in amber on Sakhalin. At the time of description ''A. dlusskyana'' was one of eight ant species known from Sakhalin fossil. History and classification ''A. dlusskyana'' is known from a single adult female fossil, the holotype, specimen number "PIN3387-172" which, at the time of the genus description, was residing in the Paleontological Institute, Russian Academy of Sciences, in Moscow. The described specimen is a worker caste adult preserved as an inclusion in a transparent chunk of Sakhalin amber. The amber specimen was recovered from deposits on Sakhalin island, in far eastern Russia during a 1972 collecting expedition. The expedition recovered amber from the beaches of the Okhotsk Sea at the mouth of the Naiba River and upstream on the banks of the river eroding out of exposures of Naibuchi Formation strata. Sakhalin amber has been attribute ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Osmunda
''Osmunda'' is a genus of primarily temperate-zone ferns of family Osmundaceae. Five to ten species have been listed for this genus. Description Completely dimorphic fronds or pinnae (hemidimorphic), green photosynthetic sterile fronds, and non-photosynthetic spore-bearing fertile pinnae, with large, naked sporangia. Because of the large mass of sporangia that ripen uniformly at the same time to a showy golden color, the ferns look as if they are in flower, and so this genus is sometimes called the "flowering ferns". Taxonomy ''Osmunda'', the type genus of the fern order, Osmundales has historically been the largest genus in the family Osmundaceae. Smith et al. (2006), who carried out the first higher-level pteridophyte classification published in the molecular phylogenetic era, described three genera in that family, namely ''Osmunda'', ''Leptopteris'', and ''Todea''. The genus has also been treated historically as consisting of a number of subgroups, generally subgenera, ''Os ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphaenogaster Praerelicta
''Aphaenogaster praerelicta'' is an extinct species of ant in the subfamily Myrmicinae known from a solitary Late Oligocene to Early Miocene fossil found in Mexico. At the time of description ''A. praerelicta'' was one of three ''Aphaenogaster'' species known from Mexico. History and classification ''Aphaenogaster praerelicta'' is known from a solitary fossil insect which is an inclusion in a transparent chunk of Mexican amber along with three flies, two springtails, a wasp, and some pollen grains. Mexican amber is recovered from fossil bearing rocks in the Simojovel region of Chiapas, Mexico. The amber dates from between 22.5 million years old, representing the youngest sediments of the Balumtun Sandstone, and the 26 million year old La Quinta Formation. This age range straddles the boundary between the Late Oligocene and Early Miocene and is complicated by both formations being secondary deposits for the amber: the age range represents only the youngest that it might be. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dominican Amber
Dominican amber is amber from the Dominican Republic derived from resin of the extinct tree ''Hymenaea protera''. Dominican amber differentiates itself from Baltic amber by being nearly always transparent, and it has a higher number of fossil inclusions. This has enabled the detailed reconstruction of the ecosystem of a long-vanished tropical forest.George Poinar, Jr. and Roberta Poinar, 1999. ''The Amber Forest: A Reconstruction of a Vanished World'', (Princeton University Press) Age A study in the early 1990s returned a date up to 40 million years old. However, according to Poinar, Dominican amber dates from Oligocene to Miocene, thus about 25 million years old. The oldest, and hardest of this amber comes from the mountain region north of Santiago. The ''La Cumbre'', ''La Toca'', ''Palo Quemado'', ''La Bucara'', and ''Los Cacaos'' mining sites in the ''Cordillera Septentrional'' not far from Santiago. Amber has also been found in the south-eastern Bayaguana/Sabana de la Mar a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphaenogaster Amphioceanica
''Aphaenogaster amphioceanica'' is an extinct species of ant in the subfamily Myrmicinae known from a single possibly Miocene fossil found in amber on Hispaniola. At the time of description ''A. amphioceanica'' was one of two ''Aphaenogaster'' species known from the Caribbean islands. History and classification ''Aphaenogaster amphioceanica'' is known from a solitary fossil insect which is an inclusion in a transparent chunk of Dominican amber along with a spider, a mite, and six woodlice. The amber was produced by the extinct ''Hymenaea protera'', which formerly grew on Hispaniola, across northern South America and up to southern Mexico. The amber specimen, number Do-4629-B; which entombs the holotype, is currently preserved in the Division of Invertebrate Zoology collections at the in Stuttgart, Germany. The holotype was collected from an undetermined amber mine, in fossil bearing rocks of the Cordillera Septentrional mountains, northern Dominican Republic. The amber dates f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propodeum
The propodeum or propodium is the first abdominal segment in Apocrita Hymenoptera (wasps, bees and ants). It is fused with the thorax to form the mesosoma. It is a single large sclerite, not subdivided, and bears a pair of spiracles. It is strongly constricted posteriorly to form the articulation of the petiole, and gives apocritans their distinctive shape. There may be a suture between the propodeum and the thorax, like in Symphyta Sawflies are the insects of the suborder Symphyta within the order Hymenoptera, alongside ants, bees, and wasps. The common name comes from the saw-like appearance of the ovipositor, which the females use to cut into the plants where they lay ... or not, and the presence or absence of such suture can aid in identifying specimens. In molluscs Propodium is the anterior (frontal) part of the foot of a mollusk. References Insect anatomy Gastropod anatomy {{insect-anatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphaenogaster Amphioceanica SMNSDO4629 01
''Aphaenogaster'' is a genus of myrmicine ants. About 200 species have been described, including 18 fossil species. They occur worldwide except in South America south of Colombia, sub-Saharan Africa, and Antarctica. They are often confused with ''Pheidole'' or ''Pheidologeton''. These two have major and minor workers, while ''Aphaenogaster'' has only a single worker caste. ''Pheidole'' has three-segmented clubs on its antennae, while ''Aphaenogaster'' has four segments and a larger body size. ''Pheidologeton'' has 11-segmented antennae, while the antennae in ''Aphaenogaster'' are 12-segmented.Genus ''Aphaenogaster'' In Australia, they often build dense, conspicuous nests.Richards, P.J. (2009) ''Aphaenogaster'' ants as bioturbators: impacts on soil and slope processes. Earth-Science Reviews 96: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphaenogaster Dlusskyana PIN3387-172 Head
''Aphaenogaster'' is a genus of myrmicine ants. About 200 species have been described, including 18 fossil species. They occur worldwide except in South America south of Colombia, sub-Saharan Africa, and Antarctica. They are often confused with ''Pheidole'' or ''Pheidologeton''. These two have major and minor workers, while ''Aphaenogaster'' has only a single worker caste. ''Pheidole'' has three-segmented clubs on its antennae, while ''Aphaenogaster'' has four segments and a larger body size. ''Pheidologeton'' has 11-segmented antennae, while the antennae in ''Aphaenogaster'' are 12-segmented.Genus ''Aphaenogaster'' In Australia, they often build dense, conspicuous nests.Richards, P.J. (2009) ''Aphaenogaster'' ants as bioturbators: impacts on soil and slope processes. Earth-Science Reviews 96: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gennady Mikhailovich Dlussky
Gennady ( rus, Геннадий, p=ɡʲɪˈnadʲɪj), also spelled Gennadi or Gennadiy, is a Russian male name. They are derived from the Greek given name Gennadius. People * Gennady Gladkov, Soviet and Russian composer *Gennady Golovkin, Kazakh boxer *Gennady Gudkov, Russian politician and businessman * Gennadi Karponosov, Soviet and Russian Olympic and world champion ice dancer and coach *Gennady Korotkevich, Belarusian sport programmer * Gennady Logofet, Soviet and Russian footballer and football coach * Gennady Semenovich Makanin, Russian mathematician * Gennady Mikhasevich, prolific Soviet serial killer and rapist * Gennady of Novgorod, Russian archbishop *Gennady Padalka, Russian cosmonaut * Gennady Rozhdestvensky, Soviet and Russian conductor * Gennadi Syomin, Russian footballer and football coach * Genndy Tartakovsky, Russian-American cartoonist * Gennady Yanayev, the only vice president of the Soviet Union * Gennady Zyuganov, Russian political party leader and assemblyman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patronym
A patronymic, or patronym, is a component of a personal name based on the given name of one's father, grandfather (avonymic), or an earlier male ancestor. Patronymics are still in use, including mandatory use, in many countries worldwide, although their use has largely been replaced by or transformed into patronymic surnames. Examples of such transformations include common English surnames such as Johnson (son of John). Origins of terms The usual noun and adjective in English is ''patronymic'', but as a noun this exists in free variation alongside ''patronym''. The first part of the word ''patronym'' comes from Greek πατήρ ''patēr'' "father" (GEN πατρός ''patros'' whence the combining form πατρο- ''patro''-); the second part comes from Greek ὄνυμα ''onyma'', a variant form of ὄνομα ''onoma'' "name". In the form ''patronymic'', this stands with the addition of the suffix -ικός (''-ikos''), which was originally used to form adjectives with the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type (biology)
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the International Code of Nomenclature for algae, fungi, and plants (ICN), the scientific name of every taxon is almost al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Academy Of Sciences Of Ukraine
The National Academy of Sciences of Ukraine (NASU; uk, Національна академія наук України, ''Natsional’na akademiya nauk Ukrayiny'', abbr: NAN Ukraine) is a self-governing state-funded organization in Ukraine that is the main center of development of science and technology by coordinating a system of research institutes in the country. It is the main research oriented organization along with the five other academies in Ukraine specialized in various scientific disciplines. NAS Ukraine consists of numerous departments, sections, research institutes, scientific centers and various other supporting scientific organizations. The Academy reports on the annual basis to the Cabinet of Ministers of Ukraine. The presidium of the academy is located at vulytsia Volodymyrska, 57, across the street from the Building of Pedagogical Museum, which was used to host the Central Council during the independence period of 1917-18. In 1919–1991 it was a repu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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