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The Bacillariophyta are the diatoms. With their exquisitely beautiful silica shells, or frustules such as that of Odontella shown above at right, diatoms are among the loveliest microfossils. ... Diatoms have an extensive fossil record going back to the Cretaceous; some rocks are formed almost entirely of fossil diatoms,
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www.ucmp.berkeley.edu/chromista/bacillariophyta.html
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Diatoms may be extremely abundant in both freshwater and marine ecosystems; it is estimated that 20% to 25% of all organic carbon fixation on the planet (transformation of carbon dioxide and water into sugars, using light energy) is carried out by diatoms.
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www.ucmp.berkeley.edu/chromista/diatoms/diatomlh.html
www.ucmp.berkeley.edu/chromista/diatoms/diatomlh.html
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California Academy of Sciences Research California Academy of SciencesHome | Privacy Policy...
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www.calacademy.org/research/diatoms/
www.calacademy.org/research/diatoms/
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Diatom - Wikipedia, the free encyclopedia
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Diatoms (Greek: (dia) = "through" + (temnein) = "to cut", i.e., "cut in half") are a major group of eukaryotic algae, and are one of the most common types of phytoplankton. Most diatoms are unice...
en.wikipedia.org/wiki/Diatom
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Diatoms are delicate unicellular organisms that have a yellow-brown chloroplast that enables them to photosynthesize. Their cell walls ... There are two different groups of diatoms, the pennates which are pen-shaped and the centric which are like a cylinder. In fresh water most diatoms you will see are of the pennate type...
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www.microscopy-uk.org.uk/mag/wimsmall/diadr.html
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Diatoms are beautiful microscopic algae. they can be found inboth marine and fresh water. Find out more about them in the following articles ... ART DECO DIATOMS ... MARINE DIATOMS...
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www.euronet.nl/users/janpar/virtual/diatoms.html
www.euronet.nl/users/janpar/virtual/diatoms.html
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Diatoms are unique forms of algae that grow a silica shell that is preserved in underwater sediments after they die. The diatom shell, called a frustule, is different for each species, so you can identify them through a microscope.
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www.stormbefore.com/diatoms.htm
www.stormbefore.com/diatoms.htm
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This teaching and learning web-site is intended as an introduction to micropalaeontology. Micropalaeontology is the study of microfossils (any fossil generally less than 1mm in size). This page covers diatoms. ... Diatoms are photosynthesising algae, they have a siliceous skeleton (frustule) and are found in almost...
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www.ucl.ac.uk/GeolSci/micropal/diatom.html
www.ucl.ac.uk/GeolSci/micropal/diatom.html
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An educational resource about marine diatoms for students and teachers. Topics include the significance of diatoms in the global carbon cycle, photosynthesis, and satellite views of the tiny organisms. ... Earthguide | Marine Life Menu | Glossary; ©1999,2000 by the Regents of the University of California.
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earthguide.ucsd.edu/diatom/d1.html
earthguide.ucsd.edu/diatom/d1.html
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