As relações de parentesco entre as famílias pertencentes à Ordem Gruiformes não estão bem esclarecidas. Na tentativa de se estabelecer tais relações, foram analisados neste estudo caracteres osteológicos cranianos de Psophiidae e miológicos cranianos de P. viridis e comparados com representantes das famílias Aramidae, Rallidae, Heliornithidae e Eurypygidae. Os resultados indicaram que, no que se refere às estru...
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Fossil remains of birds belonging to the family Phorusrhacidae were studied in several museums of South America, North America and Europe, the main objective being to characterize this family and solve the chaotic state of the nomenclature and classification of these birds. Reconstruction of some species has been done, with the purpose of having an idea about the size, body weight, posture and habit based in th...