Phylogenetic Tree

Animalia

|

Mollusca

___________________________|___________________________

|                                             |                                             |

Bivalvia                                  Cephalopoda                          Gastropoda

________________|________________

|                                                       |

Vampyromorpha                                         Octopoda      

                                    ___________________|______

                                    |                                           |

                                    Incirrata                                  Cirrata

______________________|___________________________

        |                          |                      |                               |          

Amphitretidae       Octopodidae           Bolitaenidae     Vitreledonellidae

_______________|_________________________________

|                    |               |                     |                   |

Bathypolypodinae Octopodinae Eldoninae Megaleledoninae Graneledoninae

___________|_________________________________

|                     |                      |                            |

Cistopus          Octopus           Enteroctopus           Robsonella

|                               

|                               

Octopus vulgaris                            

    This representation of the octopus' phylogenetic tree is just a basic representation.  There are some classes, orders, families, genuses, and especially species missing from the tree.  Below is a more accurate "tree."

Kingdom

Animalia

Animalia Phylums

        Porifera

        Cnidaria

        Ctenophora

        Platyhelminthes

        Acoelomorpha

        Nematoda

        Rotifera

        Arthropoda

        Annelida

        Mollusca

        Echinodermata

        Chordata

Mollusca Classes

                Bivalvia

                Gastropoda

                Cephalopoda

                Scaphopoda

                Monoplacophora

                Polyplacophora

                Aplacophora

Cephalopoda Orders

                        Decapoda

                        Sepiida

                        Sepiolida

                        Spirulida

                        Vampyromorpha

                        Octopoda

                        Nautilida

Octopoda Suborders

                                Cirrata

                                Incirrata

Incirrata Familys

                                        Alloposidae

                                        Amphitretidae

                                        Argonautidae

                                        Bolitaenidae

                                        Idioctopodidae

                                        Octopodidae

                                        Ocythoidae

                                        Tremoctopodidae

                                        Vitreledonellidae

Octopodidae Subfamilys

                                                Bathypolypodinae

                                                Megaleledoninae

                                                Octopodinae

                                                Graneledoninae

                                                Eledoninae

Octopodinae Genuses

                                                Ameloctopus

                                                Cistopus

                                                Afrodoctopus

                                                Enteroctopus

                                                Euaxoctopus

                                                Hapalochlaene

                                                Octopus

                                                Pteroctopus

                                                Robsonella

                                                Scaeurgus

Octopus Species

                                                        Octopus _________ > There are a lot, my source had 115, but

                                                        Octopus vulgaris         more than 200 are known