English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/100374
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

New Cricetodontini from the middle Miocene of Europe: An example of mosaic evolution

AuthorsLópez Guerrero, Paloma ; Álvarez Sierra, M. Ángeles ; García Paredes, Israel ; Peláez-Campomanes, Pablo
KeywordsCricetodon
Hispanomys
Mosaic morphology
Calatayud-Daroca Basin
Late Aragonian
Middle Miocene
Issue Date19-Mar-2014
PublisherCzech Geological Survey
CitationBulletin of Geosciences, 89(3): 573- 592 (2014)
AbstractA new species of Cricetodontini (Cricetidae, Rodentia, Mammalia), Cricetodon nievei sp. nov. from the Toril section (Toril 3A, Toril 3B, Toril 2) and Las Planas 5H is described. All this sites belong to the local biozone G3 (late Aragonian, late middle Miocene) from the Calatayud-Daroca Basin (Zaragoza, Spain). The new species displays a mosaic pattern consisting in a combination of primitive and derived characters: the upper molars have a basal Cricetodon-like pattern - short and not complete ectolophs -, whereas the lower molars share several derived features with the older representatives of Hispanomys - absence of metalophulid II. The generic assignation of the new taxon is further discussed and it is compared with all the species of Cricetodon and Hispanomys described until date. This mosaic evolutionary pattern of dental characters is also recognized in other species of Cricetodontini from Europe during the late Aragonian, although involving different combination of morphological characters. At this time, the diversity of the tribe increases, including species with complex morphology and higher intraspecific variability than the older representatives. The new species proposed here is morphologically close to Cricetodontini recorded outside the Calatayud-Daroca Basin, especially C. albanensis and H. decedens from France. Finally, the palaeoecological context of the new species is discussed; the stratigraphical distribution of Cricetodon nievei sp. nov. coevals changes in the faunal assemblages which are possibly related to an increase of humidity detected in the Calatayud-Daroca Basin.
URIhttp://hdl.handle.net/10261/100374
DOI10.3140/bull.qeosci.1480
ISSN1214-1119
Appears in Collections:(MNCN) Artículos
(IGEO) Artículos
Files in This Item:
File Description SizeFormat 
BG_2014_89_3_Lopez.pdf4,54 MBAdobe PDFThumbnail
View/Open
Show full item record
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.