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Revista del Museo Argentino de Ciencias Naturales

versión On-line ISSN 1853-0400

Resumen

AGNOLIN, Federico L.. A new species of the genus Megapaleolodus (Aves: Phoenicopteridae: Palaelodinae) from the Upper Miocene of Northwestern Argentina. Rev. Mus. Argent. Cienc. Nat. [online]. 2009, vol.11, n.1, pp. 23-32. ISSN 1853-0400.

A new species of the genus Megapaloelodus is described in this paper. The new species, named M. peiranoi nov. sp. was found in outcrops of the Upper Miocene Andalhualá Formation, in Catamarca province, NW Argentina. The new species differs to other previously described Megapaloelodus species and shows several elements that were poorly described by previous authors. Cervical vertebrae may be distinguished from those present in the remaining phoenicopterids in having wider and shorter centra. Medium dorsals are free. The notarium is shortened and is formed by two laterally compressed vertebrae. These vertebral traits are highly reminiscent of the basal phoenicopterid Juncitarsus and the Charadriiformes, and are probably indicative of the basal position of the genus within Phoenicopteridae.

Palabras llave : Phoenicopteridae; Palaelodinae; Megapaloelodus; Miocene; Argentina.

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