Artículo
Untangling the dinosaur family tree
Langer, Max C.; Ezcurra, Martin Daniel
; Rauhut, Oliver Walter Mischa; Benton, Michael J.; Knoll, Fabien; McPhee, Blair W.; Novas, Fernando Emilio
; Pol, Diego
; Brusatte, Stephen L.
Fecha de publicación:
11/2017
Editorial:
Nature Publishing Group
Revista:
Nature
ISSN:
0028-0836
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
For over a century, the standard classification scheme has split dinosaurs into two fundamental groups: ‘lizard-hipped’ saurischians (including meat-eating theropods and long-necked sauropodomorphs) and ‘bird-hipped’ ornithischians (including a variety of herbivorous species).In a recent paper, Baron et al. challenged this paradigm with a new phylogenetic analysis that places theropods and ornithischians together in a group called Ornithoscelida, to the exclusion of sauropodomorphs, and used their phylogeny to argue that dinosaurs may have originated in northern Pangaea, not in the southern part of the supercontinent, as has more commonly been considered. Here we evaluate and reanalyse the morphological dataset underpinning the proposal by Baron et al. and provide quantitative biogeographic analyses, which challenge the key results of their study by recovering a classical monophyletic Saurischia and a Gondwanan origin for dinosaurs. This shows that the Ornithoscelida hypothesis is not the final word, and that there is still great uncertainty around the basic structure of the dinosaur family tree.
Palabras clave:
Dinosauria
,
Phylogeny
,
Ornithoscelida
,
Biogeography
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(MACNBR)
Articulos de MUSEO ARG.DE CS.NAT "BERNARDINO RIVADAVIA"
Articulos de MUSEO ARG.DE CS.NAT "BERNARDINO RIVADAVIA"
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Langer, Max C.; Ezcurra, Martin Daniel; Rauhut, Oliver Walter Mischa; Benton, Michael J.; Knoll, Fabien; et al.; Untangling the dinosaur family tree; Nature Publishing Group; Nature; 551; 7678; 11-2017; E1-E3
Compartir
Altmétricas