The oldest fossils of stem-group octopods appeared in the Serpukhovian (late Mississippian)
Fossil of Proteroctopus from the Middle Jurassic of France, now thought to be a basal vampyropode or vampyromorph
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Clade:
Vampyropoda
Superorder:
Octopodiformes Fuchs, Von Boletzky, & Tischlinger, 2010[2]
Subgroups
See text.
Synonyms
Octobrachia Fiorini, 1981[3]
Vampyropoda Boletzky, 1992[3]
Octopodiformes is a superorder of the subclass Coleoidea, comprising the octopuses and the vampire squid. All living members of Octopodiformes have eight arms, either lacking the two tentacles of squid (as is the case in octopuses) or modifying the tentacles into thin filaments (as in vampire squid). Octopodiformes is often considered the crown group of octopuses and vampire squids, including all descendants of their common ancestor. Some authors use the term Vampyropoda for the same general category, though others use "Vampyropoda" to refer to the total group (all cephalopods closer to octopods than to true squid). Another term is Octobranchia, referring to cephalopods without prominent tentacles.[4]
It is considered one of the two extant groups of the Neocoleoidea.[2]
Pohlsepia, originally described as earliest octopod is considered as dubious for this group in later study.[1][4]Syllipsimopodi, a squid-like cephalopod from the Mississippian-age Bear Gulch Lagerstätte of Montana, was originally described as the oldest unambiguous vampyropod.[4] However, further analyses might be necessary to unequivocally assign this cephalopod to Vampyropoda.[5][6]
Syllipsimopodi has a combination of squid-like features (like 10 arms) and octopod-like features (like biserial suckers and a simplified internal shell).[4]
^ abKlug, Christian; Landman, Neil H.; Fuchs, Dirk; Mapes, Royal H.; Pohle, Alexander; Guériau, Pierre; Reguer, Solenn; Hoffmann, René (2019-07-31). "Anatomy and evolution of the first Coleoidea in the Carboniferous". Communications Biology. 2 (1): 280. doi:10.1038/s42003-019-0523-2. ISSN 2399-3642. PMC 6668408. PMID 31372519.
^ abFuchs, D.; Von Boletzky, S.; Tischlinger, H. (2010). "New evidence of functional suckers in belemnoid coleoids (Cephalopoda) weakens support for the 'Neocoleoidea' concept". Journal of Molluscan Studies. 76 (4): 404–406. doi:10.1093/mollus/eyq032.
^ abCite error: The named reference tolweb was invoked but never defined (see the help page).
^ abcdWhalen, Christopher D.; Landman, Neil H. (2022-03-08). "Fossil coleoid cephalopod from the Mississippian Bear Gulch Lagerstätte sheds light on early vampyropod evolution". Nature Communications. 13 (1): 1107. Bibcode:2022NatCo..13.1107W. doi:10.1038/s41467-022-28333-5. ISSN 2041-1723. PMC 8904582. PMID 35260548. S2CID 247317831.
^Klug, C.; Stevens, K.; Hoffmann, R.; Zatoń, M.; Clements, T.; Košťák, M.; Weis, R.; De Baets, K.; Lehmann, J.; Vinther, J.; Fuchs, D. (2023). "Revisiting the identification of Syllipsimopodi bideni and timing of the decabrachian-octobrachian divergence". Nature Communications. 14 (1). 8094. doi:10.1038/s41467-023-42842-x. PMC 10703834. PMID 38062003.
^Whalen, C. D.; Landman, N. H. (2023). "Reply to: Revisiting the identification of Syllipsimopodi bideni and timing of the decabrachian-octobrachian divergence". Nature Communications. 14 (1). 8228. doi:10.1038/s41467-023-42843-w. PMC 10716472. PMID 38086818.
Octopodiformes is a superorder of the subclass Coleoidea, comprising the octopuses and the vampire squid. All living members of Octopodiformes have eight...
composed of three superorders: Decapodiformes (squid and cuttlefish), Octopodiformes (octopuses), and Belemnoidea; with Belemnoidea containing the orders...
descendants evolved and then eventually lost its arm pair II, becoming the Octopodiformes. The following orders are recognised in the superorder Decapodiformes:...
with suckers generally only on the club-shaped distal end. Superorder Octopodiformes has modifications to arm pair II; it is significantly reduced and used...
extant groups: Decapodiformes (squid, cuttlefish, and relatives) and Octopodiformes (octopuses and the vampire squid). Species within this group exist in...
squid Order Myopsida: coastal squid Order Bathyteuthida Superorder Octopodiformes (also known as Vampyropoda) Family † Trachyteuthididae Order Vampyromorphida:...
measures of beak size in Decapodiformes; hood length is preferred for Octopodiformes. They can be used to estimate the mantle length and total body weight...
comparison to coleoids. Unlike the ten-armed Decabrachia or the eight-armed Octopodiformes, nautilus may possess any number of tentacles (cirri) from 50 to over...
away from Earth, and one of Timmy's friends. Mark resembles a green octopodiformes creature with a brain contained in glass and a "Fake-i-fier" on his...
Richard E. & Vecchione, Michael. (2002). Evolution of the gills in the octopodiformes. Bulletin of marine science. 71(2): 1003–1017 Wells, M.J., & Wells,...
specialised fin cartilage (which reaches its greatest development in Octopodiformes). A fin may be attached to the internal shell or shell remnant (such...
Vampyroteuthidae is a family of vampyromorph cephalopods containing the extant vampire squid, Vampyroteuthis infernalis, and the extinct genera Necroteuthis...
genomes have shown that the Vampyromorphida are the first group of Octopodiformes to evolutionarily diverge from all others. The Vampyromorphida is characterized...
the mantle or the apex of the united fins, whichever is longer. In Octopodiformes (eight-limbed cephalopods), the anterior edge of the mantle is not clearly...
cuttlefish Order Sepiolida bobtail squid Order Teuthida squid Superorder Octopodiformes Order Vampyromorphida vampire squid Order Octopoda octopus This overview...
become into internal conch. Syllipsimopodi is considered as belonging to Octopodiformes which contains modern octopuses and vampire squids, although it is later...
animal has often been considered an archaic relative of the octopus (Octopodiformes) due to the fact that more than eight tentacles have never been found...
Tree of Life Web Project. Bizikov, V.A. (2004). Evolution of shell in Octopodiformes (Cephalopoda) Archived 2013-10-21 at the Wayback Machine. In: Abstracts...
Necroteuthis is an extinct genus of vampire squids from the Oligocene of Hungary. It contains one species, N. hungarica. It was initially identified as...
Provampyroteuthis is an extinct genus of vampire squids from the Late Cretaceous of Japan. It contains one species, P. giganteus. It is known from several...
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