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Cephalopods

      A cephalopod is any member of the molluscan class Cephalopoda (Greek plural Κεφαλόποδα (kephalópoda); "head-feet"). These exclusively marine animals are characterized by bilateral body symmetry, a prominent head, and a set of arms or tentacles (muscular hydrostats) modified from the primitive molluscan foot. Fishermen sometimes call them inkfish, referring to their common ability to squirt ink. The study of cephalopods is a branch of malacology known as teuthology. Cephalopods became dominant during the Ordovician period, represented by primitive nautiloids. The class now contains two, only distantly related, extant subclasses: Coleoidea, which includes octopuses, squid, and cuttlefish; and Nautiloidea, represented by Nautilus and Allonautilus. In the Coleoidea, the molluscan shell has been internalized or is absent, whereas in the Nautiloidea, the external shell remains. About 800 living species of cephalopods have been identified. Two important extinct taxa are the Ammonoidea (ammonites) and Belemnoidea (belemnites).

Source: http://en.wikipedia.org/wiki/Cephalopod
Mimagoniatites Ich5671
Mimagoniatites VK60
Mimagoniatites Ich5672
Mimosphinctes zlichovensisAD, Chlupáč a Turek (1983), použit při popisu Ich5411
Mimosphinctes zlichovensis Ich5321
Mimosphinctes zlichovensisAD, Chlupáč a Turek (1983), použit při popisu Ich5406
Mimosphinctes zlichovensis Ich5322
Mimosphinctes zlichovensisAD, Chlupáč a Turek (1983), použit při popisu Ich5409
Mimosphinctes zlichovensis Ich5320
Mimosphinctes zlichovensis Ich5317
Mimosphinctes zlichovensisChlupáč a Turek (1983), Pl. 3, fig. 10 Ich5414
Mimosphinctes zlichovensisAD, Chlupáč a Turek (1983), použit při popisu Ich5408
Mimosphinctes zlichovensisAD, Chlupáč a Turek (1983), použit při popisu Ich5412
Mimosphinctes zlichovensisChlupáč a Turek (1977), Pl. III, fig. 5; Chlupáč a Turek (1983), Pl. 3, fig. 13 Ich5318
Mimosphinctes zlichovensis Ich5316
Mimosphinctes zlichovensisChlupáč a Turek (1983), Pl. 3, fig. 14 Ich5418
Mimosphinctes zlichovensisChlupáč a Turek (1983), Pl. 3, fig. 11 Ich5421
Mimosphinctes zlichovensisAD, Chlupáč a Turek (1983), použit při popisu Ich5415
Mimosphinctes zlichovensisChlupáč a Turek (1977), Pl. III, fig. 4 Ich5313
Mimosphinctes zlichovensis Ich5425
Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]