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Orthocone

Orthocone

Unusually long straight shell of a nautiloid cephalopod.

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  1. Endoceras

    Extinct genus of molluscs.

    19%

  2. Orthoceras

    Extinct genus of molluscs.

    16%

  3. Nautiloid

    Extant subclass of cephalopods.

    11%

  4. Cephalopod

    Class of mollusks.

    6.2%

  5. Antarcticeras

    Extinct genus of enigmatic cephalopod.

    6%

  6. Endocerida

    Fossil order of cephalopods.

    5.6%

  7. Nautilus

    Family of molluscs.

    3.9%

  8. Wastebasket taxon

    Classification of organisms that do not fit in other classifications.

    3.6%

  9. Orthoceratoidea

    Extinct subclass of cephalopods.

    3%

  10. Ellesmerocerida

    Extinct order of nautiloids.

    2.7%

Readers come from

Share of the 1,246 readers arriving from another article

  1. Nautiloid

    Extant subclass of cephalopods.

    37%

  2. Ammonoidea

    Extinct subclass of cephalopod molluscs.

    11%

  3. Cameroceras

    Genus of extinct, giant cephalopods.

    11%

  4. Orthoceras

    Extinct genus of molluscs.

    10%

  5. Erfoud manuport

    Fossilized cuttlefish fragment.

    9%

  6. Placoderm

    Extinct paraphyletic class of fishes.

    8.7%

  7. Antarcticeras

    Extinct genus of enigmatic cephalopod.

    4.6%

  8. Phanerozoic

    Fourth and current eon of the geological timescale.

    0.96%

  9. Endocerida

    Fossil order of cephalopods.

    0.8%