Research

Main subjects

Macroevolution, Macroecology, Morphological disparity

Taxonomic model

Mainly cephalopods: present (mainly Coleoids, sepiids: cuttlefishes; Spirula) and past (Lower Jurassic ammonoids and belemnites)

Spirula shells

Aim of my studies

By integrating the hierarchy theory, macroevolution opens up significant perspectives in debates within evolutionary biology and provides palaeontology with a conceptual and theoretical framework, which was largely missing from the modern synthesis. The search for recurrent large-scale patterns (specially concerning evolutionary radiation events) when combining diversity with disparity should lead to the discovery of what shape the observed patterns. As a consequence, paleontology must not be artificially confined to the simple recording of facts about fossils but should contribute more broadly to the exploration of evolutionary patterns and processes. On the other hand, my research also deals with recent organismes in order to explore with some more details large-scale biodiversity patterns.

Tools

Morphometry — using quantification, morphospaces and disparity
Statistics — multivariate statistics, parametric and non-parametric tests
Cladistic —parcimony analysis and stratigraphy/cladistic relationships
Field — essantial to add some new data

Biostratigraphic knowledge

Mainly for Toarcian (Lower Jurassic) and Aalenian (Middle Jurassic) ammonites.

Publications

[go to the Publications page]

[go to the Talks page]