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The third era of the Radiolaria fossil record begins at the Cretaceous-Tertiary transition. The major reorganization of Radiolaria involved some extinction in the late Mesozoic, but not the drastic reduction characteristic of most other planktonic fossils.
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www.ucmp.berkeley.edu/protista/radiolaria/radfr.html
www.ucmp.berkeley.edu/protista/radiolaria/radfr.html
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Radiolarian fossils are known from the early Phanerozoic to the present (550 million years) and, because an immense diversity of taxons evolved rapidly, they have a significant stratigraphic interest.
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radpage.univ-lyon1.fr/rad_en.html
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Radiolaria are single-celled predatory organisms encased in a silica shell. They capture their food by extending parts of their body through holes in the silica frame, and trapping passing prey. Like diatoms, their skeleton is preserved in ocean sediments.
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www.teara.govt.nz/en/plankton/2/2
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Radiolarian Fossils This is one bullet for one fact about the topic above. Here is another bullet for another fact about the topic above.
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www.docstoc.com/docs/11910080/Radiolarian-Fossils
www.docstoc.com/docs/11910080/Radiolarian-Fossils
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Radiolaria.org; Online database containing information about radiolarians, ... JRADS: Database on Japanese Radiolarian Literatures; Features works dealing with radiolarians and radiolarian fossils, which were reported from Japan and by Japanese researchers. gisws.media.osaka-cu.ac.jp/radio...
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dir.yahoo.com/Science/Biology/Protista/Radiolarians/
dir.yahoo.com/Science/Biology/Protista/Radiolarians/
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Radiolaria are single-celled planktonic marine organisms that construct skeletons of opaline silica. They are common throughout the world's oceans today, especially in areas of high oceanic productivity. Radiolarians have a rich ... Some radiolarian fossils from Paleocene sedimentary strata on the Chatham Islands,
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www.gns.cri.nz/what/earthhist/fossils/radiolarians/radi...
www.gns.cri.nz/what/earthhist/fossils/radiolarians/radiolarians.html
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B¹k, K., Uchman, A. & B¹k, M., 2000. Agglutinated Foraminifera, Radiolaria and Trace Fossils from Upper Cretaceous Deep-Water Variegated Shales at Trawne Stream, Grajcarek Unit, Pieniny Klippen Belt, Carpathians, Poland.
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www.ap.krakow.pl/geo/geolog/abstracts/Trawne_Variegated...
www.ap.krakow.pl/geo/geolog/abstracts/Trawne_Variegated_Shales.html
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What are Radiolarians; Radiolaria are holoplanktonic protozoa widely distributed in the oceans. They occur throughout the water column from near surface to hundreds of meters depth.
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www.radiolaria.org/
www.radiolaria.org/
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Classification and distribution of South Atlantic Recent Polycystine Radiolaria - published in Palaeontologica Electronica. ... Digital Radiolaria Images...
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www.radiolaria.org/links.htm
www.radiolaria.org/links.htm
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