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Fasciculus Gracilis
''Fasciculus vesanus'' is an extinct species of stem group, stem-group Ctenophora, ctenophores known from the Burgess Shale of British Columbia, Canada. It is dated to and belongs to middle Cambrian strata. The species is remarkable for its two sets of long and short comb rows, not seen in similar form elsewhere in the fossil record or among modern species. See also *''Ctenorhabdotus capulus'' *''Xanioascus canadensis'' Maotianshan shales ctenophores **''Maotianoascus octonarius'' **''Sinoascus paillatus'' **'' Daihua sanqiong'' **''Xianguangia sinica'' References External links * Monotypic prehistoric ctenophore genera Burgess Shale animals Fossil taxa described in 1978 Cambrian genus extinctions {{Ctenophore-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alberto Mario Simonetta
Alberto is the Romance languages, Romance version of the Latinized form (''Albertus'') of Germanic languages, Germanic ''Albert (given name), Albert''. It is used in Italian language, Italian, Portuguese language, Portuguese and Spanish language, Spanish. The diminutive forms are ''Albertito'' in Spain or ''Albertico'' in some parts of Latin America, Albertino in Italian as well as ''Tuco'' as a Spanish language hypocorism, hypocorism. It derives from the name Adalberto which in turn derives from ''Athala'' (meaning noble) and ''Berth'' (meaning bright). People A * Alberto Abadie (born 1968), Spanish economist * Alberto Abalde (born 1995), Spanish basketball player * Alberto Abarza (born 1984), Chilean Paralympic swimmer * Alberto Abdala (1920–1986), Uruguayan attorney, politician, painter, and Vice President of Uruguay from 1967–1972 * Alberto Abengózar (born 1989), Spanish footballer * Alberto Ablondi (1924–2010), Italian Catholic bishop * Alberto Acereda (born 1965), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ctenorhabdotus Capulus
''Ctenorhabdotus capulus'' is an extinct species of ctenophore (or comb jelly), known from the Burgess shale in British Columbia, Canada. It is approximately 515 to 505 million years old and was equipped with 24 comb rows, three times as many as known from modern ctenophores. 5 specimens of ''Ctenorhabdotus'' are known from the Greater Phyllopod bed, where they comprise < 0.1% of the community. See also *Burgess Shales ctenophores in addition to ''Ctenorhabdotus'' **'' Fasciculus vesanus'' **'' Xanioascus canadensis'' [Baidu] |
Burgess Shale Animals
Burgess may refer to: People and fictional characters * Burgess (surname), a list of people and fictional characters * Burgess (given name), a list of people Places Canada * Mount Burgess, a mountain in Yoho National Park, British Columbia England * Burgess Park, a park in London * Burgess Field, a nature reserve in Oxford *Burgess Hill, a town and parish in West Sussex United States * Burgess, Michigan, an unincorporated community * Burgess, Missouri, an unincorporated community * Burgess, South Carolina, an unincorporated community * Burgess, Virginia, an unincorporated community * Burgess Township, Bond County, Illinois, a township * Burgess Branch, a tributary of the Missisquoi River in Vermont Other uses *Burgess (title), a political official or representative *Burgess Company, an American airplane manufacturer * Burgess GAA, an athletic club in Ireland See also * Burgess House (other), several buildings named * Burgess model, or Concentric zone model ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Prehistoric Ctenophore Genera
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical system. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xianguangia Sinica
''Xianguangia'' is a soft-bodied sea anemone-like fossil animal from the Chengjiang Biota of China. Description ''Xianguangia sinica'' has a cylindrical body with a whorl of nearly 16 tentacles around the oral disc, similar to the modern anthozoans. The tentacles are feather-like with dense pinnules on both sides of the axis which would have been well adapted to filter feeding. A bowl-shaped attachment disc at the basal part might commonly have been buried in the sediment to allow its sedentary strategy on the sea floor. The body above the pedal disc is broad and cylindrical and may correspond to the internal gastrovascular cavity. It displays several distinct longitudinal grooves and ridges on the surface, indicating possible mesenteries. However, its phylogenetic affinity has long been questioned; it has even been alleged to be related to members of the Ediacara biota. Studies from the late 2010s onwards argued that it was likely to be member of the stem-group of Ctenophora (co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daihua Sanqiong
''Daihua sanqiong'' is a possible ancestor of comb jellies. It was a sessile relative to comb jellies. It had combs with cilia just like modern day comb jellies. It is named after the Dai people. The name means Dai flower. In 2019, ''Daihua'' and other Cambrian forms were hypothesized to be stem-group ctenophores Ctenophora (; : ctenophore ) is a phylum of marine invertebrates, commonly known as comb jellies, that marine habitats, inhabit sea waters worldwide. They are notable for the groups of cilia they use for swimming (commonly referred to as "combs .... This leads to the assertion that ctenophores evolved from immotile, suspensivorous forms, a lifestyle similar to that of polyps. Cladogram after Zhao ''et al.'', 2019: See also * '' Xianguangia'' * '' Dinomischus'' * '' Siphusauctum'' References Prehistoric animals Cambrian genera Fossil taxa described in 2019 Animals described in 2019 {{Cambrian-animal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinoascus Paillatus
''Sinoascus paillatus'' is an extinct species of stem-group ctenophore, known from the Maotianshan shales of Yunnan, China. It is dated to Cambrian Stage 3 and belongs to late Early Cambrian strata. Fossil specimens are poorly preserved, providing little details, if any at all, about the anatomy of the comb rows. See also Burgess shale ctenophores *'' Fasciculus vesanus'' *''Ctenorhabdotus capulus'' *'' Xanioascus canadensis'' Maotianshan shales ctenophores *'' Maotianoascus octonarius'' *''Daihua sanqiong ''Daihua sanqiong'' is a possible ancestor of comb jellies. It was a sessile relative to comb jellies. It had combs with cilia just like modern day comb jellies. It is named after the Dai people. The name means Dai flower. In 2019, ''Daihua'' a ...'' References Maotianshan shales fossils Monotypic prehistoric ctenophore genera {{Ctenophore-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maotianoascus Octonarius
''Maotianoascus octonarius'' is an extinct species of stem-group ctenophore, known from the Chinese Maotianshan shales of Yunnan. It is dated to Cambrian Stage 3 and belongs to late Early Cambrian strata. The species is remarkable for its set of eight massive lobes. A phylogenetic study of Cambrian stem-group ctenophores recovered ''Maotianoascus'' in Scleroctenophora Scleroctenophora is an extinct class of stem group ctenophores, known from the Chinese Maotianshan shales of Yunnan. It is dated to Cambrian Stage 3 and belongs to late Early Cambrian The Cambrian ( ) is the first geological period of the ..., along with'' Galeactena'', '' Thaumactena'', '' Batofasciculus'', '' Gemmactena'' and '' Trigoides''. References Maotianshan shales fossils Monotypic prehistoric ctenophore genera {{Ctenophore-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maotianshan Shales
The Maotianshan Shales () are a series of Early Cambrian sedimentary deposits in the Chiungchussu Formation or Heilinpu Formation, famous for their '' Konservat Lagerstätten'', deposits known for the exceptional preservation of fossilized organisms or traces. The Maotianshan Shales form one of some forty Cambrian fossil locations worldwide exhibiting exquisite preservation of rarely preserved, non-mineralized soft tissue, comparable to the fossils of the Burgess Shale of British Columbia, Canada. They take their name from Maotianshan Hill () in Chengjiang County, Yunnan Province, China. The most famous assemblage of organisms are referred to as the Chengjiang biota for the multiple scattered fossil sites in Chengjiang. The age of the Chengjiang Lagerstätte is locally termed Qiongzhusian, a stage correlated to the late Atdabanian Stage in Siberian sequences of the middle of the Early Cambrian. The shales date to ≤. Along with the Burgess Shale, the Maotianshan Shales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xanioascus Canadensis
''Xanioascus canadensis'' is an extinct ctenophore, known from the Burgess Shale in British Columbia, Canada. The species, which is about 515 to 505 million years old, had 24 comb rows - in contrast to all modern forms which have only 8. Other important Cambrian ctenophore fossils are '' Fasciculus vesanus'' and ''Ctenorhabdotus capulus ''Ctenorhabdotus capulus'' is an extinct species of ctenophore (or comb jelly), known from the Burgess shale in British Columbia, Canada. It is approximately 515 to 505 million years old and was equipped with 24 comb rows, three times as many as ...''. References External links * Burgess Shale animals Monotypic prehistoric ctenophore genera {{Ctenophore-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Though the fossil record is incomplete, numerous studies have demonstrated that there is enough information available to give a good understanding of the pattern of diversification of life on Earth. In addition, the record can predict and fill gaps such as the discovery of '' Tiktaalik'' in the arctic of Canada. Paleontology includes the study of fossils: their age, method of formation, and evolutionary significance. Specimens are sometimes considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years to 4.1 billion years old. Early edition, published online before prin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laura Delle Cave
Laura may refer to: People and fictional characters * Laura (given name), including lists of people and fictional characters with the name * Laura, muse of Petrarch's poetry * Laura, the British code name for the World War I Belgian spy Marthe Cnockaert Places Australia * Laura, Queensland, a town on the Cape York Peninsula * Laura, South Australia, a town * Laura Bay, a bay on Eyre Peninsula * Laura River (Queensland) * Laura River (Western Australia) Italy * Laura (Capaccio), a village of the municipality of Capaccio, Campania * Laura, Crespina Lorenzana, a village in Tuscany United States * Laura, Illinois, an unincorporated community * Laura, Kentucky, an unincorporated community * Laura, Missouri, an unincorporated community * Laura, Ohio, a village Elsewhere * Laura, Saskatchewan, Canada, a hamlet * Laura, Marshall Islands, a town * Laura, Silesian Voivodeship, Poland, a village * Laura River (Romania) * 467 Laura, an asteroid Arts and entertainment Art * ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
