Profil de Guillaume Dera

Dera Guillaume

Email :

Téléphone / phone: 0561332591

Bureau / office : F160

Institution : UPS

Statut / status: Enseignant chercheur

Adresse professionnelle / address:

Laboratoire GET
Observatoire Midi-Pyrénées
14 Avenue Edouard Belin

Site perso / personal website :

  • Depuis 2011: Enseignant-chercheur - Université Paul Sabatier Toulouse 3
  • 2010 - 2011: Postdoc - LSCE (Laboratoire des sciences du climat et de l'environnement), Gif-sur-Yvette
  • 2009 - 2010: ATER (Attaché temporaire d'enseignement et de recherche) - Université de Bourgogne, Dijon
  • 2006 - 2009: Doctorat - Université de Bourgogne, Dijon - sous la direction de Pr. Pascal Neige et Dr. Pellenard
  • 2004 - 2006: Master en géologie sédimentaire - Université de Bourgogne, Dijon
  • 2003 - 2004: Licence en Sciences de la Terre - Université de Bourgogne, Dijon
  • 2001 - 2003: DEUG en Sciences de la Terre - Université Henri Poincaré, Nancy

Mesozoic paleoclimate and paleoceanography (Jurassic & Cretaceous)

  • Evolution of seawater temperatures and carbon cycle => Oxygen & carbon isotope geochemistry on marine fossils 
  • Paleocirculations and paleodrainage => Neodymium isotope geochemistry on fish teeth, oxides and sediments 
  • Paleo-weathering => Interpretation of clay mineral assemblages 
  • Orbital forcing => Statistics and spectral analyses
  • Links between climate, pCO2, volcanism, OAEs, and paleogeography => Climate modeling (FOAM and Geoclim)

Influence of past climate changes on biodiversity and ecosystems

  • Macroevolutionary dynamics of Jurassic ammonites and belemnites
  • Biodiversity analyses => extinction, origination, paleobiogeography
  • Morphological disparity analyses
  • Paleoecology of ammonites and belemnites => geochemistry on shells and rostra

Locales (UPS & GET):

- Représentant du GET au Service Commun d’Etude et de Conservation des Collections Patrimoniales (Paléontologie)

- Co-responsable des services "Broyage" et "Séparation minérale" du GET


Membre du Groupe français d'étude du Jurassique (

Main/Recent publications


18) Goddéris Y., Donnadieu, Y., Carretier, S., Aretz M., Dera G., Macouin M., Regard, V. (2017) Onset and ending of the late Palaeozoic ice age triggered by tectonically paced rock weathering. Nature Geosciences 10, 382-386.

17) Goddéris Y., Le Hir G., Macouin M., Donnadieu, Y., Hubert-Théou, L., Dera G., Aretz M., Fluteau F., Li, X.Z., Halverson G. (2017) Paleogeographic forcing of the strontium isotopic cycle in the Neoproterozoic. Gondwana Research 42, 151-162. 


16) Dera G., Toumoulin, A., De Baets, K.  (2016) Diversity and morphological evolution of Jurassic belemnites from South Germany. Palaeogeography, Palaeoclimatology, Palaeoecolology 457, 80-97


15) Martinez, M. and Dera G. (2015)  Orbital pacing of carbon fluxes by a 9-My eccentricity cycle during the Mesozoic. PNAS 112,41, 12604-12609

14) Dera G., Prunier J., Smith P.L., Haggart J.W., Popov E., Guzhov A., Rogov M., Delsate D., Thies D., Cuny G., Pucéat E., Charbonnier G., Bayon G. (2015) Nd isotope constraints on ocean circulation, paleoclimate, and continental drainage during the Jurassic breakup of Pangea. Gondwana Research 27, 1599-1615


13) Neige P., Dera G., & Dommergues, J.L. (2013) Adaptive radiation in the fossil record laboratory: A case study among Jurassic ammonoids. Palaeontology, 56(6), 1247-1261.

12) Pucéat E., Joachimski M.M., Bouilloux A., Monna F., Bonin A., Motreuil S., Morinière, P., Hénard, S., Mourin, J., Dera G., and Quesnes D. (2013) Reply on Comment by Longinelli (2013) on a revised phosphate–water fractionation equation. Earth and Planetary Science Letters 377-378, 380-382.


11) Charbonnier G., Pucéat E., Bayon G., Desmares D., Dera G., Durlet C., Deconinck JF., Amédro F., Gourlan A., Pellenard P., Bomou B. (2012) Reconstruction of the Nd isotope composition of seawater on continental margins : testing the potential of Fe-Mn oxyhydroxide coatings on foraminifera tests. Geochimica et Cosmochimica Acta, 99, 39-56.

10) Dera G. & Donnadieu Y. (2012) Modeling evidences for global warming, Arctic seawater freshening, and sluggish oceanic circulation during the Early Toarcian Anoxic Event. Paleoceanography 27, PA2211


9) Dera G., Neige P., Dommergues, J.L. and Brayard A. (2011) Ammonite paleobiogeography during the Pliensbachian-Toarcian crisis (Early Jurassic) reflecting paleoclimate, eustasy, and extinctions. Global and Planetary Change 78, 92-105

8) Donnadieu Y., Dromart G., Goddéris Y., Pucéat E., Brigaud B., Dera G., Dumas C., and Olivier N. (2011) A mechanism for brief glacial episodes in the Mesozoic greenhouse. Paleoceanography 26, PA3212

7) Dera G., Brigaud B., Monna F., Laffont R., Pucéat E., Deconinck J-F., Pellenard P., Joachimski M.M., and Durlet C. (2011) Climatic ups and downs in a disturbed Jurassic world. Geology 39, 215-218.


6) Pucéat E., Joachimski M.M., Bouilloux A., Monna F., Bonin A., Motreuil S., Morinière, P., Hénard, S., Mourin, J., Dera G., and Quesnes D. (2010) Revised phosphate - water fractionation equation reassessing paleotemperatures derived from biogenic apatite. Earth and Planetary Science Letters 298, 135-142.

5) Dera G., Neige, P., Dommergues, J-L., Fara, E., Laffont, R., and Pellenard, P. (2010) High-resolution dynamics of Early Jurassic marine extinctions: the case of Pliensbachian-Toarcian ammonites (Cephalopoda). Journal of the Geological Society 167, 21-33


4) Dera G., Pucéat E., Pellenard P., Neige P., Delsate D., Joachimski M., Reisberg L., and Martinez M. (2009). Water mass exchange and variations in seawater temperature in the NW Tethys during the Early Jurassic: evidence from neodymium and oxygen isotopes of fish teeth and belemnites. Earth and Planetary Science Letters 286, 198-207.

3) Lachkar N., Guiraud M., El Harfi A., Dommergues J-L., Dera G., and Durlet C. (2009) Early Jurassic normal faulting in a carbonate extensional basin: characterization of tectonically driven platform drowning (High Atlas rift, Morocco). Journal of the Geological Society 166, 413-430.

2) Dera G., Pellenard P., Neige P., Deconinck J-F, Pucéat E., and Dommergues J-L. (2009). Distribution of clay minerals in Early Jurassic Peritethyan seas: palaeoclimatic significance inferred from multiproxy comparisons. Palaeogeography, Palaeoclimatology, Palaeoecolology 271, 39-51.


1) Dera G., Eble G..J., Neige P., and David B. (2008). The flourishing diversity of models in Theoretical Morphology: from current practices to future macroevolutionary and bioenvironmental challenges. Paleobiology 34, 301-317.

L2 BOPE : Paléontologie et histoire du vivant (responsable de module)

L2 TE et L3 PCESVT: Paléontologie

M1: Interactions géosphère / biosphère

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