A new giraffid (Mammalia, Ruminantia, Pecora) from the late Miocene of Spain, and the evolution of the sivathere-samothere lineage
Ríos, Maria (Museo Nacional de Ciencias Naturales. Departamento de Paleobiología)
Sánchez, Israel M. (Institut Català de Paleontologia Miquel Crusafont)
Morales, Jorge (Museo Nacional de Ciencias Naturales. Departamento de Paleobiología)

Fecha:	2017
Resumen:	Giraffids include the only living giraffomorph ruminants and are diagnosed by the presence of bi-lobed canines and a special type of epiphyseal cranial appendages called ossicones. The family Giraffidae ranges from the latest early Miocene until today. However they are currently extant relics with only two living representatives, the African genera Okapia and Giraffa. Giraffids were much more diverse and widespread in the past, with more than 30 fossil species described. For the past decades a number of studies intended to resolve the phylogenetic relationships of the family, but due to the lack of really good cranial material no clear consensus was reached regarding the phylogenetic relationships amongst the different members of the group. The exceptionally complete remains of a new large giraffid from the late Miocene of Spain, Decennatherium rex sp. nov. , allows us to improve and reassess giraffid systematics, offering a lot of new data, both anatomic and phylogenetic, on the large late Miocene giraffids of Eurasia. The results of our cladistic analysis show Decennatherium as a basal offshoot of a clade containing the gigantic samotheres and sivatheres, characterized by the presence of a Sivatherium-like ossicone-plan among other features. Decennatherium thus offers the most ancient evidence of this Sivatherium-plan and firmly establishes the early morphological patterns of evolution of a sivathere / samothere-clade that is defined as the less inclusive clade that contains Decennatherium and Sivatherium. Finally, this large group of four-ossiconed giraffids evolutionarily links Miocene Europe and Africa indicating vicariance / migration processes among the giraffid genetic pools separated by the Mediterranean Sea.
Ayudas:	Ministerio de Economía y Competitividad EEBB-I-14-07947 Ministerio de Economía y Competitividad EEBB-I-15-09349 Ministerio de Economía y Competitividad EEBB-I-16-10617 Ministerio de Economía y Competitividad CGL2016/76431-P Ministerio de Economía y Competitividad CGL2015/68333-P (2016-2019) Ministerio de Economía y Competitividad BES2012/052589 Ministerio de Economía y Competitividad CGL2011/25754 (2012-2015)
Nota:	Altres ajuts: The CERCA Program of the Catalan Government (Generalitat de Catalunya)
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Publicado en:	PloS one, Vol. 12, issue 11 (Nov. 2017) , e0185378, ISSN 1932-6203

DOI: 10.1371/journal.pone.0185378
PMID: 29091914

59 p, 57.3 MB

El registro aparece en las colecciones:
Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > Institut Català de Paleontologia Miquel Crusafont (ICP)
Artículos > Artículos de investigación
Artículos > Artículos publicados