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- Radiolaria - Wikipedia
Radiolarians are unicellular predatory protists encased in elaborate globular shells (or "capsules"), usually made of silica and pierced with holes Their name comes from the Latin for "radius"
- 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
- 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
- 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
- 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)
- 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
- Radiolarian - an overview | ScienceDirect Topics
Radiolarians are small marine organisms that graze on phytoplankton and organic detritus in oceans They have intricate siliceous shells, with the polycystine radiolarians being the ones that fossilize well and are commonly used in paleontological studies
- Radiolaria. org gt; What are radiolarians
Radiolaria are protozoa distinguished 1) by segregation of their soft anatomy into the central capsule, containing the endoplasm, and the surrounding ectoplasm (or calymma), and 2) by their siliceous (opaline) skeletons of the large majority of species
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