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Radiolaria    
放射虫类; 放射虫目; 放射亚纲

放射虫类; 放射虫目; 放射亚纲

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  • Radiolaria - Wikipedia
    The Radiolaria, also called Radiozoa, are unicellular eukaryotes of diameter 0 1–0 2 mm that produce intricate mineral skeletons, typically with a central capsule dividing the cell into the inner and outer portions of endoplasm and ectoplasm
  • Radiolarian | Marine Protists, Plankton, Microscopic | Britannica
    radiolarian, any protozoan of the class Polycystinea (superclass Actinopoda), found in the upper layers of all oceans Radiolarians, which are mostly spherically symmetrical, are known for their complex and beautifully sculptured, though minute, skeletons, referred to as tests
  • Diversity and ecology of Radiolaria in modern oceans - PMC
    Radiolaria are well known for their paleontological signatures, but little is known about the ecology of modern assemblages They are found from polar to tropical regions, in the sunlit layers of the ocean down to the deep and cold bathypelagic
  • Radiolarians: Microscopic Marine Mysteries | AMNH
    Radiolarians, single-celled marine organisms with intricate silica skeletons, have existed for at least 550 million years and are found in all the world’s oceans
  • Radiolaria. org
    Radiolaria are holoplanktonic protozoa widely distributed in the oceans They occur throughout the water column from near surface to hundreds of meters depth As with many planktonic organisms, their abundance in a geographical region is related to quality of the water mass, including such variables as temperature, salinity, productivity, and
  • Introduction to the Radiolaria - University of California Museum of . . .
    Radiolaria can range anywhere from 30 microns to 2 mm in diameter Their skeletons tend to have arm-like extensions that resemble spikes, which are used both to increase surface area for buoyancy and to capture prey Most radiolarians are planktonic, and get around by coasting along ocean currents Most are somewhat spherical, but there exist a
  • Radiolaria - Geology is the Way
    Radiolarians are single-celled protozoa, measuring less than 0 1 – 0 2 mm in diameter, that produce intricate shells (skeletons) of amorphous silica They float as part of the zooplankton in the first 200 meters of water in the Earth’s oceans (photic zone)
  • Radiolaria - New World Encyclopedia
    Radiolaria is a diverse grouping of amoeboid protozoa that produce intricate mineral skeletons, typically with a central capsule of cytoplasm separating the cell into inner and outer cytoplasmic portions, called endoplasm (with nuclei) and ectoplasm (or extracapsulum)
  • Biology and Ecology of Radiolaria - SpringerLink
    Radiolaria are unicellular holoplanktonic protozoa with siliceous or strontium sulfate skeletons Mainly studied by micropaleontologists because of their excellent fossil record, they are also key members of planktonic communities and play important roles in various oceanic ecosystems
  • Radiolarians Species - Examples, Characteristics, Ecology, Microscopy
    Radiolarians species, members of the subclass Radiolaria, are single-celled eukaryotes commonly found in marine environments (with some being colonial) Although some of the species are restricted to a specific region, these organisms are widely spread in major oceanic ecosystems across the world





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