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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


 

PT9A
Pistoprion Kielan - Jaworowska, 1966 PT9
PT7A
Pistoprion Kielan - Jaworowska, 1966 PT7
PT9A
Pistoprion Kielan - Jaworowska, 1966 PT9
PT11A
Pistoprion Kielan - Jaworowska, 1966 PT11
PT11A
Pistoprion Kielan - Jaworowska, 1966 PT11
PT11A
Pistoprion Kielan - Jaworowska, 1966 PT11
PT11A
Pistoprion Kielan - Jaworowska, 1966 PT11
PT5A
Pistoprion Kielan - Jaworowska, 1966 PT5
PT5C
Pistoprion Kielan - Jaworowska, 1966 PT5
PT11A
Pistoprion Kielan - Jaworowska, 1966 PT11
PT11A
Pistoprion Kielan - Jaworowska, 1966 PT11
PT22G
Placognatha indet. PT22
PT22G
Placognatha indet. PT22
PT5A
Placognatha indet. PT5
PT9A
Placognatha indet. PT9
PT9A
Placognatha indet. PT9
PT5C
Placognatha indet. PT5
PT9A
Placognatha indet. PT9
PT11A
Placognatha indet. PT11
JH1172c
Plumulites fraternus JH1172

In the Virtual Museum there are total 383 samples

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