Models of historical biogeography and continental biochronology

• Álvarez-Sierra, María Ángles ^[1] ; García-Paredes, Israel ^[1] ; Hernández-Ballarín, Verónica ^[2] ; Van Den Hoek Ostende, Lars W ^[4] ; Hordijk, Kees ^[3] ; López-Guerrero, Paloma ^[1] ; Van Der Meulen, Albert J ^[3] ; Oliver, Adriana ^[2] ; Paláez-Campomanes, Pablo ^[2]
  1. [1] Universidad Complutense de Madrid

     Universidad Complutense de Madrid

     Madrid, España

     
  2. [2] Museo Nacional de Ciencias Naturales

     Museo Nacional de Ciencias Naturales

     Madrid, España

     
  3. [3] Utrecht University

     Utrecht University

     Países Bajos

     
  4. [4] Naturalis Biodiversity Center, The Netherlands

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• Localización: Spanish journal of palaeontology, ISSN 2255-0550, Vol. 28, Nº. 2, 2013 (Ejemplar dedicado a: SPANISH JOURNAL OF PALAEONTOLOGY), págs. 129-138
• Idioma: inglés
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• Resumen

  • One of the most important contributions of Nieves López Martínez in Palaeobiogeography is the study of the ‘centre of origin of species’ concept and the proposal of the ‘Asymmetric Time Model’ as an alternative to the ‘Symmetric Time Model’, a key concept in dispersalist Historical Biogeography. As a consequence of these ideas, she discussed the methodology to establish biostratigraphic scales, pointing out that the higher number of ‘First Appearance Datum’ (FADs) over that of ‘Last Appearance Datum’ (LADs) in the fossil record supports the Asymmetrical Time Model. In this study we analyse the middle Miocene micromammal appearance and extinction events (FADs and LADs) based on well-calibrated local biostratigraphic scales from different European basins, in order to determine which of the proposed biogeographical models better fits the Miocene European micromammal record. The results support that the Asymmetric Time Model of palaeobiogeography is only applicable in rare cases. The analysed fossil record only shows one event of occurrence and one of extinction that can be considered synchronous at continental level. Finally, the implications of the biogeographic models in the proposition of biochronologic continental scales are also discussed, pointing out that palaeobiogeographic frameworks need robust biochronologies based on extensive local biostratigraphic data with independent temporal correlation