Due to the forces of physical and biological processes and their interactions, environments on Earth are constantly evolving with changes occurring at all scales of space and time. These interactions, and in particular their effects on fluctuations in biodiversity, are currently the focus of attention. Thanks to the biotic evidence yielded not only by fossil assemblages but also by individual fossils, palaeontologists have available much that is necessary for under-standing how the biosphere reacted and how it contributed to greater or lesser changes from the remote past to the present day.
The PACE team assembles palaeontologists, micropalaeontologists, palaeobotanists and sedimentologists around a vast theme: The biotic response due to environmental changes (small/large scale, long/short duration, cyclic/non-periodic). The message from the fossil re-cord is analysed for its palaeoecological and palaeoenvironmental significance. Palaeon-tological tools which we employ are harmonised with geochemical and sedimentological "proxies" (for example, stable isotopes, organic matter, etc…) in order to obtain a better un-derstanding of the processes, of their causes and their consequences. Reliable use of the in-formation obtained is dependent upon the correct understanding of how the palaeoenviron-mental signal was generated and what happened to it during fossilisation (taphonomy).
The team's research comprises three projects.