Dr. Micha Ruhl

• Chemostratigraphy Across the Triassic-Jurassic Boundary in, editor(s)Alcides N. Sial, Claudio Gaucher, Muthuvairavasamy Ramkumar, and Valderez Pinto Ferreira , Chemostratigraphy Across Major Chronological Boundaries, USA, John Wiley & Sons, Inc, 2019, pp185-2010 , [Christoph Korte, Micha Ruhl, József Pálfy, Clemens Vinzenz Ullmann, Stephen Peter Hesselbo]Book Chapter, 2019, DOI , TARA - Full Text
• LAWRENCE M.E. PERCIVAL, HUGH C. JENKYNS, TAMSIN A. MATHER, ALEXANDER J. DICKSON, SIETSKE J. BATENBURG, MICHA RUHL, STEPHEN P. HESSELBO, RICHARD BARCLAY, IAN JARVIS, STUART A. ROBINSON, LINEKE WOELDERS, DOES LARGE IGNEOUS PROVINCE VOLCANISM ALWAYS PERTURB THE MERCURY CYCLE? COMPARING THE RECORDS OF OCEANIC ANOXIC EVENT 2 AND THE END-CRETACEOUS TO OTHER MESOZOIC EVENTS, American Journal of Science, 318, 2018, p799 - 860Journal Article, 2018, DOI , TARA - Full Text
• John N. Hooker, Micha Ruhl, Alexander J. Dickson, Lars N. Hansen, Erdem Idiz, Stephen P. Hesselbo, Joe Cartwright, Shale anisotropy and natural hydraulic fracture propagation: An example from the Jurassic (Toarcian) Posidonienschiefer, Germany, Journal of Geophysical Research: Solid Earth, 2020Journal Article, 2020
• Weimu Xu, Conall Mac Niocaill, Micha Ruhl, Hugh C. Jenkyns, James B. Riding, Stephen P. Hesselbo, Magnetostratigraphy of the Toarcian Stage (Lower Jurassic) of the Llanbedr (Mochras Farm) Borehole, Wales: basis for a global standard and implications for volcanic forcing of palaeoenvironmental change, Journal of the Geological Society, 175, (4), 2018, p594--604Journal Article, 2018
• Hinnov, L.A., Ruhl, M., Hesselbo, S.P., Reply to the Comment on "Astronomical constraints on the duration of the Early Jurassic Pliensbachian Stage and global climatic fluctuations" [Earth Planet. Sci. Lett. 455 (2016) 149"165], Earth and Planetary Science Letters, 481, 2018, p415-419Journal Article, 2018
• J. D. Scaife, M. Ruhl, A. J. Dickson, T. A. Mather, H. C. Jenkyns, L. M. E. Percival, S. P. Hesselbo, J. Cartwright, J. S. Eldrett, S. C. Bergman, D. Minisini, Sedimentary Mercury Enrichments as a Marker for Submarine Large Igneous Province Volcanism? Evidence From the Mid-Cenomanian Event and Oceanic Anoxic Event 2 (Late Cretaceous), Geochemistry, Geophysics, Geosystems, 2017Journal Article, 2017
• Alexander J. Dickson, Benjamin C. Gill, Micha Ruhl, Hugh C. Jenkyns, Donald Porcelli, Erdem Idiz, Timothy W. Lyons, Sander H. J. M. van den Boorn, Molybdenum-isotope chemostratigraphy and paleoceanography of the Toarcian Oceanic Anoxic Event (Early Jurassic), Paleoceanography, 2017Journal Article, 2017
• Jenkyns, H.C., Dickson, A.J., Ruhl, M., van den Boorn, S.H.J.M., Basalt-seawater interaction, the Plenus Cold Event, enhanced weathering and geochemical change: deconstructing Oceanic Anoxic Event 2 (Cenomanian"Turonian, Late Cretaceous), Sedimentology, 64, (1), 2017, p16-43Journal Article, 2017
• Korte, C., Thibault, N., Ullmann, C.V., Clémence, M.-E., Mette, W., Olsen, T.K., Rizzi, M., Ruhl, M., Brachiopod biogeochemistry and isotope stratigraphy from the Rhaetian Eiberg section in Austria: Potentials and limitations, Neues Jahrbuch fur Geologie und Palaontologie - Abhandlungen, 284, (2), 2017, p117-138Journal Article, 2017
• Xu, W., Ruhl, M., Jenkyns, H.C., Hesselbo, S.P., Riding, J.B., Selby, D., Naafs, B.D.A., Weijers, J.W.H., Pancost, R.D., Tegelaar, E.W., Idiz, E.F., Carbon sequestration in an expanded lake system during the Toarcian oceanic anoxic event, Nature Geoscience, 10, (2), 2017, p129-134Journal Article, 2017
• Robinson, S.A., Ruhl, M., Astley, D.L., Naafs, B.D.A., Farnsworth, A.J., Bown, P.R., Jenkyns, H.C., Lunt, D.J., O'Brien, C., Pancost, R.D., Markwick, P.J., Early Jurassic North Atlantic sea-surface temperatures from TEX86 palaeothermometry, Sedimentology, 64, (1), 2017, p215-230Journal Article, 2017
• Percival, L.M.E., Ruhl, M., Hesselbo, S.P., Jenkyns, H.C., Mather, T.A., Whiteside, J.H., Mercury evidence for pulsed volcanism during the end-Triassic mass extinction, Proceedings of the National Academy of Sciences of the United States of America, 114, (30), 2017, p7929-7934Journal Article, 2017
• Xu, W., Ruhl, M., Hesselbo, S.P., Riding, J.B., Jenkyns, H.C., Orbital pacing of the Early Jurassic carbon cycle, black-shale formation and seabed methane seepage, Sedimentology, 64, (1), 2017, p127-149Journal Article, 2017
• Thibault, N., Ruhl, M., Ullmann, C.V., Korte, C., Kemp, D.B., Gröcke, D.R., Hesselbo, S.P., The wider context of the Lower Jurassic Toarcian oceanic anoxic event in Yorkshire coastal outcrops, UK, Proceedings of the Geologists' Association, 2017Journal Article, 2017
• Micha Ruhl, Stephen P. Hesselbo, Linda Hinnov, Hugh C. Jenkyns, Weimu Xu, James B. Riding, Marisa Storm, Daniel Minisini, Clemens V. Ullmann, Melanie J. Leng, Astronomical constraints on the duration of the Early Jurassic Pliensbachian Stage and global climatic fluctuations, Earth and Planetary Science Letters, 455, 2016, p149--165Journal Article, 2016
• Percival, L.M.E., Witt, M.L.I., Mather, T.A., Hermoso, M., Jenkyns, H.C., Hesselbo, S.P., Al-Suwaidi, A.H., Storm, M.S., Xu, W., Ruhl, M., Globally enhanced mercury deposition during the end-Pliensbachian extinction and Toarcian OAE: A link to the Karoo-Ferrar Large Igneous Province, Earth and Planetary Science Letters, 428, 2015, p267-280Journal Article, 2015
• Korte, C., Hesselbo, S.P., Ullmann, C.V., Dietl, G., Ruhl, M., Schweigert, G., Thibault, N., Jurassic climate mode governed by ocean gateway, Nature Communications, 6, 2015Journal Article, 2015
• Hüsing, S.K., Beniest, A., van der Boon, A., Abels, H.A., Deenen, M.H.L., Ruhl, M., Krijgsman, W., Astronomically-calibrated magnetostratigraphy of the Lower Jurassic marine successions at St. Audrie's Bay and East Quantoxhead (Hettangian-Sinemurian; Somerset, UK), Palaeogeography, Palaeoclimatology, Palaeoecology, 403, 2014, p43-56Journal Article, 2014
• Ullmann, C.V., Thibault, N., Ruhl, M., Hesselbo, S.P., Korte, C., Effect of a Jurassic oceanic anoxic event on belemnite ecology and evolution, Proceedings of the National Academy of Sciences of the United States of America, 111, (28), 2014, p10073-10076Journal Article, 2014
• Hesselbo, S.P., Bjerrum, C.J., Hinnov, L.A., MacNiocaill, C., Miller, K.G., Riding, J.B., Van De Schootbrugge, B., Abels, H., Belcher, C., Blau, J., Browning, J., Cartwright, J., Condon, D., Daines, S., Damborenea, S., Dickson, A., Fraguas, A., Hilgen, F., Hooker, J., Huang, C., Huesing, S., Jenkyns, H., Korte, C., Krijgsman, W., Lenton, T., Little, C., Manceñido, M., Mattioli, E., Meister, C., Morgan, R., Newton, R., Pálfy, J., Pienkowski, G., Poulton, S., Riccardi, A., Robinson, A., Ruhl, M., Suan, G., Smith, N., Thibault, N., Ullmann, C., Wignall, P., Williford, K., Wonik, T., Xu, W., Mochras borehole revisited: A new global standard for Early Jurassic earth history, Scientific Drilling, (16), 2013, p81-91Journal Article, 2013
• Hillebrandt, A.V., Krystyn, L., Kürschner, W.M., Bonis, N.R., Ruhl, M., Richoz, S., Schobben, M.A., Urlichs, M., Bown, P.R., Kment, K., McRoberts, C.A., Simms, M., Tomãsových, A., The global stratotype sections and point (GSSP) for the base of the jurassic system at kuhjoch (Karwendel Mountains, Northern Calcareous Alps, Tyrol, Austria), Episodes, 36, (3), 2013, p162-198Journal Article, 2013
• Dahl, T.W., Ruhl, M., Hammarlund, E.U., Canfield, D.E., Rosing, M.T., Bjerrum, C.J., Tracing euxinia by molybdenum concentrations in sediments using handheld X-ray fluorescence spectroscopy (HHXRF), Chemical Geology, 360-361, 2013, p241-251Journal Article, 2013
• Ruhl, M., Bonis, N.R., Reichart, G.-J., Sinninghe Damsté, J.S., Kürschner, W.M., Atmospheric carbon injection linked to end-Triassic mass extinction, Science, 333, (6041), 2011, p430-434Journal Article, 2011
• Ruhl, M., Kürschner, W.M., Multiple phases of carbon cycle disturbance from large igneous province formation at the Triassic-Jurassic transition, Geology, 39, (5), 2011, p431-434Journal Article, 2011
• Deenen, M.H.L., Krijgsman, W., Ruhl, M., The quest for chron E23r at Partridge Island, bay of Fundy, Canada: CAMP emplacement postdates the end-Triassic extinction event at the North American craton, Canadian Journal of Earth Sciences, 48, (8), 2011, p1282-1291Journal Article, 2011
• Deenen, M.H.L., Ruhl, M., Bonis, N.R., Krijgsman, W., Kuerschner, W.M., Reitsma, M., van Bergen, M.J., A new chronology for the end-Triassic mass extinction, Earth and Planetary Science Letters, 291, (1-4), 2010, p113-125Journal Article, 2010
• Ruhl, M., Deenen, M.H.L., Abels, H.A., Bonis, N.R., Krijgsman, W., Kürschner, W.M., Astronomical constraints on the duration of the early Jurassic Hettangian stage and recovery rates following the end-Triassic mass extinction (St Audrie's Bay/East Quantoxhead, UK), Earth and Planetary Science Letters, 295, (1-2), 2010, p262-276Journal Article, 2010
• Bonis, N.R., Ruhl, M., Kürschner, W.M., Climate change driven black shale deposition during the end-Triassic in the western Tethys, Palaeogeography, Palaeoclimatology, Palaeoecology, 290, (1-4), 2010, p151-159Journal Article, 2010
• Bonis, N.R., Ruhl, M., Kürschner, W.M., Milankovitch-scale palynological turnover across the Triassic-Jurassic transition at St. Audrie's Bay, SW UK, Journal of the Geological Society, 167, (5), 2010, p877-888Journal Article, 2010
• Ruhl, M., Veld, H., Kürschner, W.M., Sedimentary organic matter characterization of the Triassic-Jurassic boundary GSSP at Kuhjoch (Austria), Earth and Planetary Science Letters, 292, (1-2), 2010, p17-26Journal Article, 2010
• Ruhl, M., Kürschner, W.M., Krystyn, L., Triassic-Jurassic organic carbon isotope stratigraphy of key sections in the western Tethys realm (Austria), Earth and Planetary Science Letters, 281, (3-4), 2009, p169-187Journal Article, 2009
• Hesselbo, S.P., Little, C.T.S., Ruhl, M., Thibault, N., Ullmann, C.V., Comments on "Paleosalinity determination in ancient epicontinental seas: A case study of the T-OAE in the Cleveland Basin (UK)" by Remirez, M. N. and Algeo, T. J., Earth-Science Reviews, 208, 2020Journal Article, 2020, DOI
• Sinnesael, M., De Vleeschouwer, D., Zeeden, C., Batenburg, S.J., Da Silva, A.-C., de Winter, N.J., Dinarès-Turell, J., Drury, A.J., Gambacorta, G., Hilgen, F.J., Hinnov, L.A., Hudson, A.J.L., Kemp, D.B., Lantink, M.L., Laurin, J., Li, M., Liebrand, D., Ma, C., Meyers, S.R., Monkenbusch, J., Montanari, A., Nohl, T., Pälike, H., Pas, D., Ruhl, M., Thibault, N., Vahlenkamp, M., Valero, L., Wouters, S., Wu, H., Claeys, P., The Cyclostratigraphy Intercomparison Project (CIP): consistency, merits and pitfalls, Earth-Science Reviews, 199, 2019Journal Article, 2019, DOI
• Sweere, T.C., Dickson, A.J., Jenkyns, H.C., Porcelli, D., Ruhl, M., Murphy, M.J., Idiz, E., van den Boorn, S.H.J.M., Eldrett, J.S., Henderson, G.M., Controls on the Cd-isotope composition of Upper Cretaceous (Cenomanian"Turonian) organic-rich mudrocks from south Texas (Eagle Ford Group), Geochimica et Cosmochimica Acta, 287, 2020, p251-262Journal Article, 2020, DOI
• Rizzi, M., Thibault, N., Ullmann, C.V., Ruhl, M., Olsen, T.K., Moreau, J., Clémence, M.-E., Mette, W., Korte, C., Sedimentology and carbon isotope stratigraphy of the Rhaetian Hochalm section (Late Triassic, Austria), Global and Planetary Change, 191, 2020Journal Article, 2020, DOI
• Kovács, E.B., Ruhl, M., Demény, A., Fórizs, I., Hegyi, I., Horváth-Kostka, Z.R., Móricz, F., Vallner, Z., Pálfy, J., Mercury anomalies and carbon isotope excursions in the western Tethyan Cs"vár section support the link between CAMP volcanism and the end-Triassic extinction, Global and Planetary Change, 194, 2020Journal Article, 2020, DOI
• Ruhl, M., Hesselbo, S.P., Al-Suwaidi, A., Jenkyns, H.C., Damborenea, S.E., Manceñido, M.O., Storm, M., Mather, T.A., Riccardi, A.C., On the onset of Central Atlantic Magmatic Province (CAMP) volcanism and environmental and carbon-cycle change at the Triassic"Jurassic transition (Neuquén Basin, Argentina), Earth-Science Reviews, 208, 2020Journal Article, 2020, DOI
• Storm, M.S., Hesselbo, S.P., Jenkyns, H.C., Ruhl, M., Ullmann, C.V., Xu, W., Leng, M.J., Riding, J.B., Gorbanenko, O., Orbital pacing and secular evolution of the Early Jurassic carbon cycle, Proceedings of the National Academy of Sciences of the United States of America, 117, (8), 2020, p3974-3982Journal Article, 2020, DOI
• Li, L., Wang, Y., Kürschner, W.M., Ruhl, M., Vajda, V., Palaeovegetation and palaeoclimate changes across the Triassic"Jurassic transition in the Sichuan Basin, China, Palaeogeography, Palaeoclimatology, Palaeoecology, 556, 2020Journal Article, 2020, DOI
• Percival, L.M.E., Jenkyns, H.C., Mather, T.A., Dickson, A.J., Batenburg, S.J., Ruhl, M., Hesselbo, S.P., Barclay, R., Jarvis, I., Robinson, S.A., Woelders, L., Does large igneous province volcanism always perturb the mercury cycle? Comparing the records of Oceanic Anoxic Event 2 and the end-cretaceous to other Mesozoic events, American Journal of Science, 318, (8), 2018, p799-860Journal Article, 2018, DOI
• Xu, W., Ruhl, M., Jenkyns, H.C., Leng, M.J., Huggett, J.M., Minisini, D., Ullmann, C.V., Riding, J.B., Weijers, J.W.H., Storm, M.S., Percival, L.M.E., Tosca, N.J., Idiz, E.F., Tegelaar, E.W., Hesselbo, S.P., Evolution of the Toarcian (Early Jurassic) carbon-cycle and global climatic controls on local sedimentary processes (Cardigan Bay Basin, UK), Earth and Planetary Science Letters, 484, 2018, p396-411Journal Article, 2018, DOI
• Weimu Xu, Johan W. H. Weijers, Micha Ruhl, Erdem F. Idiz, Hugh C. Jenkyns, James B. Riding, Olga Gorbanenko, Stephen P. Hesselbo, Molecular and petrographical evidence for lacustrine environmental and biotic change in the palaeo-Sichuan mega-lake (China) during the Toarcian Oceanic Anoxic Event, Geological Society, London, Special Publications, 2021, pSP514--2021--2Journal Article, 2021, DOI
• Ricardo L. Silva, Micha Ruhl, Cillian Barry, Matías Reolid, Wolfgang Ruebsam, Pacing of late Pliensbachian and early Toarcian carbon cycle perturbations and environmental change in the westernmost Tethys (La Cerradura Section, Subbetic zone of the Betic Cordillera, Spain), Geological Society, London, Special Publications, 2021, pSP514--2021--27Journal Article, 2021, DOI
• Alessandro Menini, Emanuela Mattioli, Stephen P. Hesselbo, Micha Ruhl, Guillaume Suan, Primary v. carbonate production in the Toarcian, a case study from the Llanbedr (Mochras Farm) borehole, Wales, Geological Society, London, Special Publications, 2021, pSP514--2021--19Journal Article, 2021, DOI
• Qing Li, Micha Ruhl, Yong-Dong Wang, Xiao-Ping Xie, Peng-Cheng An, Yuan-Yuan Xu, Response of Carnian Pluvial Episode evidenced by organic carbon isotopic excursions from western Hubei, South China, Palaeoworld, 2021Journal Article, 2021, DOI
• Qing Li, Feng Ding, Micha Ruhl, Yongdong Wang, Ying Li, Lei Yang, Kunzhi Xu, Xiangang Xie, Geochemistry of the Lower Cretaceous limestones in the Eastern Tethys Gyabula Formation (Himalaya, southern Tibet): implications for the depositional environment and tectonic setting, Arabian Journal of Geosciences, 14, 2021, p2353-Journal Article, 2021
• Alexander J. Dickson, Hugh C. Jenkyns, Erdem Idiz, Tim C. Sweere, Melissa J. Murphy, Sander H. J. M. van den Boorn, Micha Ruhl, James S. Eldrett, Donald Porcelli, New Constraints on Global Geochemical Cycling During Oceanic Anoxic Event 2 (Late Cretaceous) From a 6-Million-year Long Molybdenum-Isotope Record, Geochemistry, Geophysics, Geosystems,, 22, (e2020GC009246), 2021Journal Article, 2021, DOI , TARA - Full Text
• The Jurassic Period in, editor(s)Felix M. Gradstein James G. Ogg Mark D. Schmitz Gabi M. Ogg , Geological Time Scale 2020, Elsevier, Elsevier, 2020, [S.P. Hesselbo, J.G. Ogg, M. Ruhl]Book Chapter, 2020, URL , TARA - Full Text
• R.L. Silva, L.V. Duarte, G.D. Wach, M. Ruhl, D. Sadki, J.J. G"omez, S.P. Hesselbo, Weimu Xu, D. O'Connor, B. Rodrigues, J.G. Mendonça Filho, An Early Jurassic (Sinemurian-Toarcian) stratigraphic framework for the occurrence of Organic Matter Preservation Intervals (OMPIs), Earth-Science Reviews, 221, (103780), 2021Journal Article, 2021, DOI , TARA - Full Text
• Teuntje P. Hollaar, Sarah J. Baker, Stephen P. Hesselbo, Jean-François Deconinck, Luke Mander, Micha Ruhl, Claire M. Belcher, Wildfire enhanced by orbital forcing during periods of past global warmth, Nature Communications Earth & Environment, 2022Journal Article, 2022
• Micha Ruhl, Carbon cycle changes during the Triassic-Jurassic transition, 1, Utrecht, Netherlands, LPP Contributions Series, 2010, 28ppBook, 2010
• A. Dickson, E. Idiz, D. Porcelli, R. Celestino, H. Jenkyns, S. Poulton, S.P. Hesselbo, J.N. Hooker, M. Ruhl, No effect of thermal maturity on the Mo - U - Cd- and Zn-isotope compositions of Lower Jurassic organic-rich sediments, Geology, 2022Journal Article, 2022
• Hillebrandt, A. v., Krystyn, L., Kürschner, W.M., Bonis, N.R., Ruhl, M., Urlichs, M., with contributions by Bown, P., Kment, K., McRoberts, C., Simms, M., Tomasovych, A., A candidate GSSP for the base of the Jurassic in the Northern Calcareous Alps (Kuhjoch section; Karwendel Mountains, Tyrol, Austria), International Subcommission on Jurassic Stratigraphy Newsletter , 34, (1), 2007, p2 - 20Journal Article, 2007
• Teuntje P. Hollaar, Sarah J. Baker, Stephen P. Hesselbo, Jean-François Deconinck, Luke Mander, Micha Ruhl, Claire M. Belcher, Wildfire activity enhanced during phases of maximum orbital eccentricity and precessional forcing in the Early Jurassic, Communications Earth & Environment, 2021Journal Article, 2021, DOI

Key-words: Palaeoclimatology, Mass extinctions, Global Change Events, Sedimentary Geochemistry, Integrated Stratigraphy I apply sedimentological, stratigraphical (chemo-, bio-, cyclo-, magneto), and low-temperature geochemical methodologies to constrain causes and consequences of past global climatic & environmental change events, mass extinctions, and changing depositional environments. - Past Climates & perturbations to the global carbon cycle: Earth's climate and the environment have changed on multiple temporal (10E2-10E7 yrs) and geographical (local"global) scales. My research aims to constrain the (causative) internal and external forcing mechanisms and positive and negative feedback processes that controlled Earth's climate and environment. In particular, I am interested in understanding (1) how Large Igneous Province (LIP) volcanism impacted on global climate and environments, global biodiversity (mass extinction/evolution) and changes in global (bio)geochemical cycles; (2) how external processes, such as astronomical forcing impacted on global climates, environments and local sedimentary depositional conditions; and (3) background conditions in the global climate & environment and global carbon cycling. -- For this research I study some for the largest climate change & mass extinction events in Earth history. - Depositional environments: My research aims to constrain the physical, biological and geochemical processes that control sediment deposition and carbon sequestration in marine and terrestrial (including lacustrine/lake) sedimentary basins, and how these are affected by climatic and environmental change on local"global scales. -- For this I study for example the processes that controlled carbon drawdown and preservation during past global Oceanic Anoxic Events (OAEs). - Geo- and Astrochronology: My research improves the geological timescale through absolute and relative dating of sedimentary deposits, with the aim to constrain the rate of change in physical, biological and geochemical parameters recorded therein, including changes in the rate of past extinctions & evolution, the rate of carbon release and sequestration associated with past climate change events, etc. This research is conducted through major international research programmes, such as (i) the UNESCO International Geoscience Programme (IGCP), for which I served as Co-PI and member of several successful past and present projects, (ii) the International Continental Drilling Programme (ICDP), for which I serve as member of current projects and PI and Co-PI of current drilling proposals, and (iii) the International Ocean Discovery Programme (IODP), for which I served as land-based project participant.

Environmental management, Oceanography, Climate change science, Environmental geoscience,

• Member of International Association of Sedimentologists (IAS) ongoing
• Member of UNESCO IGCP Project 652: Reading Geologic Time in Paleozoic Sedimentary Rocks: The Need for an Integrated Stratigraphy 2021
• Member of UNESCO IGCP Project 655: Toarcian Oceanic Anoxic Event Impact on Marine Carbon Cycle and Ecosystems 2019
• Co-PI of the UNESCO International Geoscience Programme (IGCP) Project 739: Mesozoic and Paleogene Hyperthermal Events 2025
• Voting member (invited) for the International Union of Geological Sciences (IUGS) International Subcommission on Jurassic Stratigraphy (ISJS) 2025
• Board Member & Treasurer of the Palaeobotanical & Palynological Society Utrecht 2009
• Member of European Association of Geochemists (EAG) ongoing
• Member of the International Continental Drilling Programme (ICDP) project: Early Jurasssic Earth System & Timescale (JET) Ongoing
• Member of UNESCO International Geoscience Programme (IGCP) Project 632: Continental Crises of the Jurassic: Major Extinction Events and Environmental Changes within Lacustrine Ecosystems 2018

• 2020 - present Voting member (invited) for the International Union of Geological Sciences (IUGS) International Subcommission on Jurassic Stratigraphy (ISJS) 2020
• External examiner PhD viva: Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, China 2019
• External examiner PhD viva: Khalifa University, Abu Dhabi, United Arab Emirates 2021
• External examiner PhD viva: Aarhus University, Denmark 2020
• External examiner PhD viva: University of Copenhagen, Department of Geosciences and Natural Resource Management 2022
• 2020 - present Voting member (invited) for the International Union of Geological Sciences (IUGS) International Subcommission on Jurassic Stratigraphy (ISJS) 2020
• External examiner PhD viva: Aarhus University, Denmark 2020
• External examiner PhD viva: Khalifa University, Abu Dhabi, United Arab Emirates 2021
• External examiner PhD viva: Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, China 2019
• External examiner PhD viva: University of Copenhagen, Department of Geosciences and Natural Resource Management 2022
• External examiner PhD viva: Khalifa University, Abu Dhabi, United Arab Emirates 2021
• External examiner PhD viva: Khalifa University, Abu Dhabi, United Arab Emirates 2021