The fossil galliform bird Paraortygoides from the Lower Eocene of the United Kingdom. American Museum novitates ; no. 3360

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dc.contributor.authorDyke, Gareth.en_US
dc.contributor.authorGulas, Bonnie E.en_US
dc.contributor.authorVincent, Steve.en_US
dc.date.accessioned2005-10-06T16:42:40Z
dc.date.available2005-10-06T16:42:40Z
dc.date.issued2002en_US
dc.description14 p. : ill., map ; 26 cm.en_US
dc.descriptionIncludes bibliographical references (p. 10-12).en_US
dc.description.abstractA new fossil species assigned to the galliform genus Paraortygoides Mayr is described from the Lower Eocene (Ypresian Stage) London Clay Formation of the United Kingdom. Paraortygoides radagasti, n. sp., is referred to the genus on the basis of comparisons with other specimens from the Middle Eocene deposit of Messel (Hessen, Germany). Because of the three-dimensional preservation of this fossil material, P. radagasti contributes new information pertaining to the morphology of the genus Paraortygoides, in particular with regard to the thoracic vertebrae, tarsometatarsus, and toes. This genus, for example, is distinguished from other currently known fossil and extant galliform birds by the presence of deep pneumatic excavations in the lateral sides of the thoracic vertebrae. The results of a preliminary phylogenetic analysis suggest that Paraortygoides is basal within Galliformes (as already proposed by Mayr (2000)); monophyly of the order is supported with Megapodiidae as the basal sister taxon with respect to the Cracidae and Phasianidae. Paraortygoides radagasti is one of the oldest galliform birds described to date; its age and degree of preservation provide a reliable early phylogenetic constraint for the divergence of a basal clade within the order Galliformes.en_US
dc.format.extent368373 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2246/2913
dc.languageengen_US
dc.language.isoen_US
dc.publisherNew York, NY : American Museum of Natural Historyen_US
dc.relation.ispartofseriesAmerican Museum novitates ; no. 3360en_US
dc.subject.lccQL1 .A436 no.3360 2002en_US
dc.subject.lcshParaortygoides radagasti.en_US
dc.subject.lcshBirds, Fossil -- England -- Essex.en_US
dc.subject.lcshPaleontology -- Eocene -- England -- Essex.en_US
dc.subject.lcshPaleontology -- England -- Essex.en_US
dc.titleThe fossil galliform bird Paraortygoides from the Lower Eocene of the United Kingdom. American Museum novitates ; no. 3360en_US
dc.typetexten_US

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