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The astragalus of Paleogene artiodactyls: comparative morphology, variability and prediction of body mass

Martinez, Jean‐Noël ; Sudre, Jean

Lethaia, 1995-09, Vol.28 (3), p.197-209 [Periódico revisado por pares]

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Título:
The astragalus of Paleogene artiodactyls: comparative morphology, variability and prediction of body mass
Autor: Martinez, Jean‐Noël ; Sudre, Jean
Assuntos: allometry ; Artiodactyls ; astragalus ; body mass ; comparative morphology ; Paleogene
É parte de: Lethaia, 1995-09, Vol.28 (3), p.197-209
Notas: 10.18261/let
ark:/67375/WNG-6J0PH03Q-S
ArticleID:LET197
istex:4E204832E8043FB0E98A8C6EA63DE0C7408E2968
Descrição: The morphology of the astragalus is analysed in nineteen Paleogene artiodactyls (suborders Palaeodonta, Suina, Ancodonta and Ruminantia). This morphology is related to the functional adaptations of the appendicular skeleton, but some diagnostic characters can be seen at the family level. For the populations examined, the proportions of this bone show a low intraspecific variability, which does not allow detection of any dimorphism. An allometric relationship between the dimensions of the astragalus and the body mass has been established for extant species, allowing estimates for the fossil species. In most cases, the interval between the two extreme estimations using the astragalus includes the estimated body mass using M/1 area. The limits of this method are discussed, and it is suggested that the dimensions of the astragalus give a better estimation of the body mass than the dental area.
Editor: Oxford, UK: Scandinavian University Press
Idioma: Inglês;Norueguês

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