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dc.date.accessioned 2020-10-29T18:47:36Z
dc.date.available 2020-10-29T18:47:36Z
dc.date.issued 2016
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/107977
dc.description.abstract Antarctoboenus carlinii nov. gen. nov. sp. is a large-sized falconiform bird from the La Meseta Formation (Lower Eocene) at Seymour (Marambio) Island, West Antarctica. The holotypical tarsometatarsus was originally assigned to Falconidae and its affinities to Polyborinae were pointed out. Detailed osteological and comparative analyses of the Antarctic specimen allowed recognition of the new taxon as a member of stem group Falconidae, i.e. it is supposed to belong to the early radiation of the falconiform lineage. Antarctoboenus carlinii is distinguished from members of crown group Falconidae by having a very shallow sulcus extensorius, a large foramen vasculare distale, an undistinguishable tendinal attachment for the m. adductor digiti II, and short trochlea metatarsi II, among its main diagnostic characters. Purported phylogenetic relationships between A. carlinii and Polyborinae are based on plesiomorphic characters retained in the tarsometatarsus of the latter clade. Our conclusions reinforce the hypothesis about the Neotropical or Austral origin of Falconidae supported by previous molecular phylogenies. en
dc.language en es
dc.subject Fossil bird es
dc.subject Falconiformes es
dc.subject Paleogene es
dc.subject Seymour Island es
dc.subject Stem lineage es
dc.subject Antarctoboenus carlinii es
dc.title A stem falconid bird from the Lower Eocene of Antarctica and the early southern radiation of the falcons en
dc.type Articulo es
sedici.identifier.other http://dx.doi.org/10.1007/s10336-015-1316-0 es
sedici.identifier.issn 2193-7206 es
sedici.creator.person Cenizo, Marcos Martín es
sedici.creator.person Noriega, Jorge Ignacio es
sedici.creator.person Reguero, Marcelo Alfredo es
sedici.subject.materias Ciencias Naturales es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Naturales y Museo es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Journal of Ornithology es
sedici.relation.journalVolumeAndIssue vol. 157, no. 3 es


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)