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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
Prokopitraea calimala MŠ12386
Prokopitraea calimalaŠnajdr (1983b), Pl. 2, fig. 4 MŠ12384
Prokopitraea calimala MŠ12367
Protarabellites rectangularis Eriksson, 2001Tonarová et al (2012), fig. 5Bfoto PT5
Protarabellites rectangularis Eriksson, 2001Tonarová et al (2012), fig. 5Dfoto PT5
Protarabellites rectangularis Eriksson, 2001Tonarová et al. (2012), fig. 5.G PT25
Protarabellites rectangularis Eriksson, 2001Tonarová et al. (2012), Fig. 5Afoto PT11
Protarabellites rectangularis Eriksson, 2001Tonarová et al. (2012), fig.5Cfoto PT9
Protarabellites rectangularis Eriksson, 2001Tonarová et al. (2012), fig. 5Ffoto PT9
Protarabellites rectangularis Eriksson, 2001Tonarová et al. (2012), fig. 5.Efoto PT7
Protarabellites Stauffer, 1933foto PT5
Protarabellites Stauffer, 1933AD Tonarová et al. (2012)foto PT9
Protarabellites Stauffer, 1933AD Tonarová et al. (2012) PT24
Protarabellites Stauffer, 1933 PT8
Protarabellites Stauffer, 1933AD Tonarová et al. (2012) PT20
Protarabellites Stauffer, 1933AD Tonarová et al. (2012)foto PT7
Protarabellites Stauffer, 1933AD Tonarová et al. (2012) PT26
Pteropelta Eisenack, 1939foto PT7
Pteropelta Eisenack, 1939AD Tonarová et al. (2012)foto PT9
Rakvereprion sp. A sensu Tonarová et al (2012)Tonarová et al (2012), fig. 4Xfoto PT5

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