The paleoichnological site of Pehuen Co, located on the southern coast of Buenos Aires
province, Argentina, was discovered in 1986 and the first paper was published in 1987. New …

A comprehensive overview of all the South American and Antarctic fossil records of
Rheiformes and close relatives, accompanied by updated stratigraphic data, is provided …

Despite its importance in various disciplines, a general method to assess ontogenetic ages
of skeletal and fossil specimens has been lacking for birds. Although the textural ageing …

Although the assessment of ontogenetic stage of fossil and skeletal specimens (ontogenetic
ageing) plays fundamental roles in avian paleontology, detailed information of postnatal …

Abstract A NEW SPECIES OF RHEA (AVES: RHEIDAE) FROM THE LATE MIOCENE OF
THE MESOPOTAMIA IN ARGENTINA. A new species of rhea, Pterocnemia mesopotamica …

ABSTRACT A new species of rheid, Opisthodactylus kirchneri, sp. nov., is erected on the
basis of associated elements of both hind limbs from the late Miocene in northwestern …

Los sitios arqueológicos de la región pampeana presentan bajas proporciones de
especímenes de Rhea americana (ñandú), lo cual permitió proponer que este animal fue …

The objective of this study was to study the morphological pattern of bone maturation of the
hindlimb bones of Rhea americana and find out how it can affect bone morphology after a …

The bone texture of Rhea americana was evaluated through the examination of a postnatal
ontogenetic series. The hind limb bone surfaces of specimens of one, three and five months …

The article presents the taxonomic study carried out on the Rheidae (Palaeognathae:
Ratitae) faunal remains recovered in the open‐air archaeological site Boyo Paso 2 dated at …