About: Cephalopoda   Sponge Permalink

An Entity of Type : owl:Thing, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

The Cephalopoda comprises a class of molluscs characterized by muscular arms, or tentacles, that project from the head and surround the mouth. Three divisions, or subclasses, are involved, the Ammonoidea which are extinct and the Nautiloidea and Coleoidea which have modern representatives. Coleoids differ in that their shells, if present, are internal. They include recent squid, octopus, and cuttlefish.

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rdfs:label
  • Cephalopoda
rdfs:comment
  • The Cephalopoda comprises a class of molluscs characterized by muscular arms, or tentacles, that project from the head and surround the mouth. Three divisions, or subclasses, are involved, the Ammonoidea which are extinct and the Nautiloidea and Coleoidea which have modern representatives. Coleoids differ in that their shells, if present, are internal. They include recent squid, octopus, and cuttlefish.
dcterms:subject
Row 4 info
  • *Subclass Nautiloidea **Plectronocerida **Ellesmerocerida **Endocerida **Discosorida **Actinocerida **Pseudorthocerida **Tarphycerida **Oncocerida **Nautilida **Orthocerida **Ascocerida **Bactritida *Subclass Ammonoidea **Anarcestida **Goniatitida **Prolecanitida **Ceratitida **Ammonitida *Subclass Coleoidea **Belemnoidea ***Aulacocerida ***Belemnitida ***Hematitida ***Phragmoteuthida **Neocoleoidea ***?Boletzkyida ***Sepiida ***Sepiolida ***Spirulida ***Teuthida ***Octopoda ***Vampyromorphida
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Row 1 title
  • Kingdom
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  • Phylum
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  • Cephalopoda
  • (Cuvier, 1797)
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  • Class
dbkwik:fossil/prop...iPageUsesTemplate
Name
  • Cephalopoda
fossil range
abstract
  • The Cephalopoda comprises a class of molluscs characterized by muscular arms, or tentacles, that project from the head and surround the mouth. Three divisions, or subclasses, are involved, the Ammonoidea which are extinct and the Nautiloidea and Coleoidea which have modern representatives. The Nautiloidea and Ammonoidea have external, chambered shells and are thus ectocochliate. The Nautiloidea have their beginning in the Late Cambrian and after a near extinction diversified into some 8 orders in the Ordovician only to more or less steadily decline there after. The Ammonoidea, which are derived from the nautiloid Orthocerida, have their beginning in the Devonian and after great diversification went extinct at the end of the Cretaceous. Coleoids differ in that their shells, if present, are internal. They include recent squid, octopus, and cuttlefish.
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