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Annelids

      The annelids (also called "ringed worms"), formally called Annelida (from French annelés "ringed ones", ultimately from Latin anellus "little ring"), are a large phylum of segmented worms, with over 17,000 modern species including ragworms, earthworms and leeches. They are found in marine environments from tidal zones to hydrothermal vents, in freshwater, and in moist terrestrial environments. Although most textbooks still use the traditional division into polychaetes (almost all marine), oligochaetes (which include earthworms) and leech-like species, research since 1997 has radically changed this scheme, viewing leeches as a sub-group of oligochaetes and oligochaetes as a sub-group of polychaetes. In addition, the Pogonophora, Echiura and Sipuncula, previously regarded as separate phyla, are now regarded as sub-groups of polychaetes. Annelids are considered members of the Lophotrochozoa, a "super-phylum" of protostomes that also includes molluscs, brachiopods, flatworms and nemerteans.

Source: http://en.wikipedia.org/wiki/Annelid


 

MS_6040
Cryptosiphon terebelloides MŠ6040
PT7A
Kettnerites kosoviensis PT7
PT22G
Kettnerites kosoviensis PT22
PT7A
Kettnerites kosoviensis PT7
PT9A
Kettnerites kosoviensis PT9
PT9A
Kettnerites kosoviensis PT9
PT22G
Kettnerites kosoviensis PT22
PT11A
Kettnerites kosoviensis PT11
PT11A
Kettnerites kosoviensis PT11
PT7A
Kettnerites kosoviensis PT7
PT22G
Kettnerites kosoviensis PT22
PT22G
Kettnerites sisyphi Bergman, 1987 PT22
PT11A
Kettnerites sisyphi Bergman, 1987 PT11
PT5A
Kettnerites sisyphi Bergman, 1987 PT5
PT22G
Kettnerites sisyphi Bergman, 1987 PT22
PT22G
Kettnerites sisyphi Bergman, 1987 PT22
PT22G
Kettnerites sisyphi Bergman, 1987 PT22
PT7A
Kettnerites sisyphi Bergman, 1987 PT7
PT5C
Kettnerites sisyphi Bergman, 1987 PT5
PT22G
Kettnerites sisyphi Bergman, 1987 PT22

In the Virtual Museum there are total 366 samples

Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]