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  • Oswaldella  (2)
  • nomenclature  (2)
  • 1
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    Phylogenetic analysis of the Antarctic genus Oswaldella Stechow, 1919 (Hydrozoa, Leptomedusae, Kirchenpaueriidae) (1999)
    In:  Contributions to Zoology (1383-4517) vol.68 (1999) nr.2 p.83
    Details
    Publication Date: 2015-05-08
    Description: A cladistic study was carried out on known species of the characteristically Antarctic genus Oswaldella, adopting as outgroups some other genera included in the family Kirchenpaueriidae. The analysis resulted in a cladogram with low CI in which no relationship between genera can be depicted. However, the hypothesis of monophyly of the genus Oswaldella is corroborated, being supported in our cladogram by five synapomorphies (although all are homoplastic with other taxa or reversed within the species of the genus). The basal relationships of the genus are uncertain, but three species groups are distinguishable within Oswaldella: 1) the O. incognita group, 2) the O. antarctica group, and 3) a clade formed by (O. garciacarrascosai, O. elongata ( O. blanconae (O. gracilis O. herwigi, Oswaldella sp. two)))).
    Keywords: Hydrozoa ; Kirchenpaueriidae ; Oswaldella ; Antarctica ; systematics ; cladistics
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
    Format: application/pdf
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  • 2
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    Short notes and reviews Simplifying hydrozoan classification: inappropriateness of the group Hydroidomedusae in a phylogenetic context (2001)
    In:  Contributions to Zoology (1383-4517) vol.70 (2001) nr.3 p.175
    Details
    Publication Date: 2015-05-08
    Description: The systematics of Hydrozoa is considered from the viewpoint of logical consistency between phylogeny and classification. The validity of the nominal taxon Hydroidomedusae (including all groups of Hydrozoa except the Siphonophorae) is discussed with regard to its distinctness and inclusive relationships. In general, phylogenetic systematic evidence suggest that the use of the term Hydroidomedusae is inappropriate given our current level of understanding. It is concluded that no new, or resurrected, names are necessary before or until a broader phylogenetic revision of the Hydrozoa is accomplished.
    Keywords: Hydrozoa ; Hydroidomedusae ; classification ; nomenclature ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
    Format: application/pdf
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  • 3
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    Phylogenetic analysis of the Antarctic genus Oswaldella Stechow, 1919 (Hydrozoa, Leptomedusae, Kirchenpaueriidae) (1999)
    In:  Contributions to Zoology vol. 68 no. 2, pp. 83-93
    Details
    Publication Date: 2024-01-12
    Description: A cladistic study was carried out on known species of the characteristically Antarctic genus Oswaldella, adopting as outgroups some other genera included in the family Kirchenpaueriidae. The analysis resulted in a cladogram with low CI in which no relationship between genera can be depicted. However, the hypothesis of monophyly of the genus Oswaldella is corroborated, being supported in our cladogram by five synapomorphies (although all are homoplastic with other taxa or reversed within the species of the genus). The basal relationships of the genus are uncertain, but three species groups are distinguishable within Oswaldella: 1) the O. incognita group, 2) the O. antarctica group, and 3) a clade formed by (O. garciacarrascosai, O. elongata ( O. blanconae (O. gracilis O. herwigi, Oswaldella sp. two)))).
    Keywords: Hydrozoa ; Kirchenpaueriidae ; Oswaldella ; Antarctica ; systematics ; cladistics
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 4
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    Short notes and reviews Simplifying hydrozoan classification: inappropriateness of the group Hydroidomedusae in a phylogenetic context (2001)
    In:  Contributions to Zoology vol. 70 no. 3, pp. 175-179
    Details
    Publication Date: 2024-01-12
    Description: The systematics of Hydrozoa is considered from the viewpoint of logical consistency between phylogeny and classification. The validity of the nominal taxon Hydroidomedusae (including all groups of Hydrozoa except the Siphonophorae) is discussed with regard to its distinctness and inclusive relationships. In general, phylogenetic systematic evidence suggest that the use of the term Hydroidomedusae is inappropriate given our current level of understanding. It is concluded that no new, or resurrected, names are necessary before or until a broader phylogenetic revision of the Hydrozoa is accomplished.
    Keywords: Hydrozoa ; Hydroidomedusae ; classification ; nomenclature ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
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    PAPER (OA)
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