Pierre Gueriau

Research Interest

My research focuses both on arthropod evolution and exceptional preservation throughout the use and development of advanced imaging techniques, particularly trace elemental mapping, allowing me to visualize new anatomical characters in fossils and/or to decipher the chemical and structural changes that affect organisms during and after burial. I completed my PhD at the Muséum national d’Histoire naturelle (Paris), and was then successively a postdoctoral researcher at the SOLEIL synchrotron and the European research platform IPANEMA dedicated to ancient materials (Gif-sur-Yvette, France), and a SNSF researcher at the University of Lausanne (Switzerland). After a short-term position as research engineer at the Muséum national d’Histoire naturelle, I am now working as a junior lecturer (“Premier assistant”) at the University of Lausanne since February 2023.


Palaeozoic arthropods, taxonomy, systematics, palaeoecology, taphonomy, advanced imaging, synchrotron

Highlighted publications

Celeux G., Cohen S.X., Grimaud A. & Gueriau P. 2022. Hierarchical clustering of spectral images with spatial constraints for the rapid processing of large and heterogeneous datasets. SN Computer Science 3, 194. (doi: 10.1007/s42979-022-01074-4)

Alleon J., Montagnac G., Reynard B., Brule T., Thoury M., Gueriau P. 2021. Pushing Raman spectroscopy over the edge: purported signatures of organic molecules in fossil animals are instrumental artefacts. BioEssays 43 (4), 202000295. (doi: 10.1002/bies.202000295)

Gueriau P., Bernard S., Farges F., Mocuta C., Dutheil D.B., Adatte T., Bomou B., Godet M., Thiaudière D., Charbonnier S. & Bertrand L. 2020. Oxidative conditions can lead to exceptional preservation through phosphatization. Geology 48 (12), 1164–1168. (doi: 10.1130/G45924.1)

Gueriau P., Lamsdell J.C., Wogelius R.A., Manning P.L., Egerton V.E., Bergmann U., Bertrand L. & Denayer J. 2020. A new Devonian euthycarcinoid evidences the use of different respiratory strategies during the marine-to-terrestrial transition in the myriapod lineage. Royal Society Open Science 7, 201037. (doi: 10.1098/rsos.201037)

Gueriau P., Réguer S., Leclercq N., Cupello C., Brito P.M., Jauvion C., Morel S., Charbonnier S., Thiaudière D. & Mocuta C. 2020. Visualizing mineralization processes and fossil anatomy using synchronous synchrotron X-ray fluorescence and X-ray diffraction mapping. Journal of the Royal Society Interface 17, 20200216. (doi: 10.1098/rsif.2020.0216)

Georgiou R., Gueriau P., Sahle C., Bernard S., Mirone A., Garrouste R., Bergmann U., Rueff J.-P. & Bertrand L. 2019. Carbon speciation in organic fossils using 2D to 3D x-ray Raman multispectral imaging. Science Advances 5, eaaw5019. (doi: 10.1126/sciadv.aaw5019)

Gueriau P., Jauvion C. & Mocuta M. 2018. Show me your yttrium, and I will tell you who you are: implications for fossil imaging. Palaeontology 61 (6), 981–990. (doi: 10.1111/pala.12377)

Gueriau P., Bernard S. & Bertrand L. 2016. Advanced synchrotron characterization of paleontological specimens. Elements 12 (1), 45–50. (doi: 10.2113/gselements.12.1.45)

Gueriau P., Rabet N., Clément G., Lagebro L., Vannier J., Briggs D.E.G., Charbonnier S., Olive S. & Béthoux O. 2016. A 365-million-year-old freshwater community reveals morphological and ecological stasis in branchiopod crustaceans. Current Biology 26 (3) 383–390. (doi: 10.1016/j.cub.2015.12.039)

Gueriau P., Mocuta C., Dutheil D.B., Cohen S.X., Thiaudière D., the OT1 Consortium, Charbonnier S., Clément G. & Bertrand L. 2014. Trace elemental imaging of rare earth elements discriminates tissues at microscale in flat fossils. PLoS One 9 (1), e86946. (doi: 10.1371/journal.pone.0086946)


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