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Ernst Haeckel: Kunstformen der Natur - English
URL: http://caliban.mpiz-koeln.mpg.de/~stueber/haeckel/kunstformen/natur.html

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Diese elektronische Ausgabe wurde erstellt mit Hilfe einer Original-Ausgabe des Haeckel'schen Werkes, das freundlicherweise von Prof. Dr. v. Sengbusch zur Verfügung gestellt wurde. Alle Tafeln wurden mit einer Auflösung von 300 dpi und 16 Millionen Farben eingescannt. Das Einscannen wurde mit großer Sorgfalt durchgeführt, um das gebundene Original nicht zu beschädigen.

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Radiolaria.org - English
URL: http://www.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 available nutrients.

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ÔÐÀÊÒÀËÛ ÆÈÂÎÉ ÏÐÈÐÎÄÛ - Russian
URL: http://www.aires.ru/worldnews/Radiolar/radiolar.html

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Systematic tree of organisms: Radiolaria - English
URL: http://www.miljolare.no/data/ut/art/?lang=eng&or_id=4628

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Species list of the Radiolaria - English
URL: http://www.biologie.uni-hamburg.de/b-online/radio/table.html

as prepared by Dr. Gerhard Keuck (1999)

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LITERATURE ON RADIOLARIA - English
URL: http://gdcmp1.ucsd.edu/geol_coll/radlit/radlitpg.html

Nigrini & Moore, 1979. A Guide to Modern Radiolaria.

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Stratigraphic distribution of Mesozoic Radiolaria from the Tethys - English
URL: http://ip.nhm.org/datasets/rads/

These data include the year 2000 version of the Jurassic/Cretaceous Radiolaira database compiled by Taniel Danielian (Universite Pierre et Marie Curie - Paris 6) and Ken Johnson (Scripps Institution of Oceanography). The data are extracted from an Tethyan radiolarian atlas and biozonation scheme (Baumgartner et al., 1995) compiled by the Jurassic-Cretaceous Working Group of the International Association of Radiolarian Palaeontologists (INTERRAD).

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RADIOLARIA - English
URL: http://100.1911encyclopedia.org/R/RA/RADIOLARIA.htm

RADIOLARIA very thin glass walls of the containing tube. The collected particle gave the spectrum of helium, showing, without doubt, that the a particle must be a helium atom.

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CLASSIFICATION AND DISTRIBUTION OF SOUTH ATLANTIC RECENT POLYCYSTINE RADIOLARIA - English
URL: http://palaeo-electronica.org/1998_2/boltovskoy/main.htm

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Demetrio Boltovskoy

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Radiolaria - Wikipedia - English
URL: http://www.wikipedia.org/wiki/Radiolaria

shown in filters: Hinweise und Indexe

The radiolaria comprise three groups of amoeboids protists which form intricate mineral skeletons. They feed and move by means of axopods, and have a frothy ectoplasm often including symbiotic zooxanthellae, which is separated by a central capsule. Among the Polycystinea and Phaeodarea, the skeleton is made of silica and sometimes organic materials, but among the less common Acantharea it is made of strontium sulfate.

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IMAGE GALLERY: RADIOLARIA - English
URL: http://www.cladocera.de/protozoa/rhizopoda/imgal_radiolaria.html

In contrast to heliozoa, radiolaria exhibit a "central capsule" which separates the intra- from the extracapsular cytoplasm. Nucleus or nuclei are always located in the intracypsular cytoplasm. Most radiolaria possess a species' specific skeleton , mostly with star-like appearance, which is made out of silicic acid or strontium sulfate. Most radiolaria are found in the deeper planktonic strata of warm-water seas. Acantharia are found mainly in the upper plankton. Famous are the radiolarian sediments of Barbados.

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Ceratoikiscum herkommeri - a radiolaria - English
URL: http://www.flash.net/~mherk/herk_i.htm

A Radiolaria from the Arbuckle Mountains and Criner Hills Upper Devonian and Mississippian

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Fossil Record of the Radiolaria - English
URL: http://www.ucmp.berkeley.edu/protista/radiolaria/radfr.html

There are three distinct transitions in the evolution of Radiolaria, corresponding to three transitions in the geologic time scale, the Permo-Triassic, Cretaceous-Tertiary, and Paleogene-Neogene. Each phase includes extinction of families at the transition between periods, and a subsequent increase in the number of families as the new period progressed.

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Mesozoic Radiolaria - English
URL: http://www.utdallas.edu/~pujana/rads.htm

Radiolaria are the most abundant fossils in Mesozoic eugeoclinal terranes along the Circum-Pacific margin. They are often present and well-preserved where most other fossils are absent. During the last fifteen years radiolarian biostratigraphy has had a great impact on unraveling the stratigraphy and in turn the structure of many eugeoclinal terranes in Western North America and elsewhere in the world. In addition, it is now apparent from recent investigations in North America that Radiolaria can be utilized in paleobiogeographic reconstructions and to document the presence of Mesozoic displaced terranes.

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Radiolaria, Foraminifera, Paramecium's, Amebas, Protophyta: Pictures, Photographs, Images - English
URL: http://www.photovault.com/Link/Orders/ProtophytaProtista/zRadiolaria/OPZVolume01

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Radiolaria - English
URL: http://www.microscopy-uk.org.uk/mag/artjun99/bdradio.html

The Radiolaria are a group of unicellular organisms perhaps more commonly met with as prepared slides, rather than in life. As living creatures they can be encountered in the great oceans but more commonly in the Central Pacific. They were discovered in strange and beautiful forms by the research ship Challenger as a huge deposit of ooze on the ocean bed.

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Introduction to the Radiolaria - English
URL: http://www.ucmp.berkeley.edu/protista/radiolaria/rads.html

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The Type Collection - English
URL: http://www.toyen.uio.no/palmus/type_coll.htm

The University of Oslo, Paleontological Museum contains the largest collection of fossils in Norway and functions as a National Museum. Dedicated work with organising a special type collection started in the 1920s and today specimens are housed in a special locked room and carefully arranged in a series of metal cupboards according to date of publication. At present there are well over 19.000 catalogued specimens of which almost 3.000 are type and figured specimens found in 960 publications dating from 1833 to the present. All relevant publications and specimens are recorded in the museum data base and will be available on the www in the near future.

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NMNH - Research and Collections - Databases - English
URL: http://www.mnh.si.edu/rc/db/databases.html

Smithsonian Institution has a large collection of radiolarians, but shows no links or pictures on their web site.

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Radiolaria as tracers of ocean-climate history - English
URL: http://www.iisc.ernet.in/~currsci/nov10/articles14.htm

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Radiolaria, siliceous protozoan marine planktons, though reported since long from rocks and recent oceanic sediments, have proved as potential tools in the last three decades in understanding geological history as well as in getting better insight into the oceanographic processes. This has particularly been possible with the availability of deep-sea cores as a result of Deep Sea Drilling Project.

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