Dr Jan Alfons Irma Hennissen

Dr Jan Alfons Irma Hennissen

Palynologist Laboratory Manager Biostratigraphy and Palaeontology

Location: BGS Keyworth

Tel: 0115 936 3532

E-mail Dr Jan Alfons Irma Hennissen

ORCID: 25624946400

Key papers

  • Emmings, J F, Hennissen, J A I, Stephenson, M H, Poulton, S W, Vane, C H, Davies, S, Leng, M J, Lamb, A, and Moss-Hayes, V. 2019. Controls on amorphous organic matter type and sulphurization in a Mississippian Black Shale. Review of Palaeobotany and Palynology, 268, 1–18. DOI: 10.1016/j.revpalbo.2019.04.004
  • Hennissen, J A I, and Gent, C M A. 2019. Total organic carbon in the Bowland-Hodder Unit of the southern Widmerpool Gulf: a discussion. Journal of Petroleum Science and Engineering, 178, 1194–1202. DOI: 10.1016/j.petrol.2019.01.097
  • Newport, S, Hennissen, J A I, Armstrong, J P, Taylor, K G, Newport L, and Hough, E. 2019. Can One-Run-Fixed-Arrhenius Kerogen Analysis provide comparable Organofacies results to detailed Palynological Analysis? A case study from a prospective Mississippian Source Rock Reservoir (Bowland Shale, UK) (accepted). Natural Resources Research. DOI: 10.1007/s11053-019-09543-z
  • Woods, M A, Wilkinson, I P, Leng, M J, Riding, J B, Vane, C H, Lopes dos Santos, R A, Kender, S, De Schepper, S, Hennissen, J A I, Ward, S L, Gowing, C J B, Wilby, P R, Nichols, M D, and Rochelle, C A. 2019. Tracking Holocene palaeostratification and productivity changes in the Western Irish Sea: A multi-proxy record. Palaeogeography, Palaeoclimatology, Palaeoecology, 532. DOI: 10.1016/j.palaeo.2019.06.004
  • Hennissen, J A I, Head, M J, De Schepper, S, and Groeneveld, J. 2017. Dinoflagellate cyst paleoecology during the Pliocene–Pleistocene climatic transition in the North Atlantic. Palaeogeog, Palaeoclimatol, Palaeoecol, 470, 81-108. DOI: 10.1016/j.palaeo.2016.12.023
  • Hennissen, J A I, Hough, E, Vane, C H, Leng, M J, Kemp, S J, and Stephenson, M H. 2017. The prospectivity of a potential shale gas play: An example from the southern Pennine Basin (central England, UK). Mar. Pet. Geol. 86, 1047-1066.
  • Hennissen, J A I, Head, M J, De Schepper, S, and Groeneveld, J. 2015. Increased seasonality during the intensification of Northern Hemisphere glaciation at the Pliocene–Pleistocene transition ~2.6 Ma. Quat. Sci. Rev. 129, 321-33. DOI: 10.1016/j.quascirev.2015.10.010
  • Hennissen, J A I, Head, M J, et al. 2014. Palynological evidence for a southward shift of the North Atlantic Current at ~2.6 Ma during the intensification of late Cenozoic Northern Hemisphere glaciations. Paleoceanography: 2013PA002543.
  • De Schepper, S, Groeneveld, J, Naafs, B D A, Van Renterghem, C, Hennissen, J, and Head, M J. 2013. Northern Hemisphere Glaciation during the Globally Warm Early Late Pliocene. PLoS ONE, 8(12): e81508.
  • Hennissen, J, Vandenbroucke, T R A, et al. 2010. The Dawangou auxiliary GSSP (Xinjiang autonomous region, China) of the base of the Upper Ordovician Series: putting global chitinozoan biostratigraphy to the test. Journal of Micropalaeontology, 29(2): 93-113.
  • Vandenbroucke, T R A, Hennissen, J, et al. 2008. New chitinozoans from the historical type area of the Hirnantian Stage and additional key sections in the Wye Valley, Wales, UK. Geological Journal, 43(4): 397-414.

Research interests

  • Palynology: especially its uses in palaeoecological reconstructions
  • Palynology-based proxy development: statistical analysis of palynological results
  • Plio-Pleistocene dinocysts
  • Chitinozoan taxonomy and biostratigraphy


  • 2016 – ongoing : Research Scientist Palynology
  • 2015 – ongoing : Laboratory Manager Biostratigraphy and Palaeontology
  • 2013 –2016 : Postdoctoral Research Associate-Unconventional Gas Team at BGS
  • 2008 –2012 : University of Toronto, Toronto (Ontario, Canada); PhD Earth Sciences
  • 2006 –2007 : Université de Liège, Liège (Wallonia region, Belgium), Diplôme d’études approfondies en paléontologie appliquée: micropaléontologie végétale et palynologie
  • 2004 –2006 : Ghent University (Flanders Region, Belgium), Msc Geology


  • 2013 : AASP-The Palynological Society L.R. Wilson Award
  • 2011 : National Association of Geoscience Teachers Outstanding Teacher Assistant Award
  • 2010 : Laurence Curtis outstanding Teaching Assistant Award

Professional association

  • Member of AASP-The Palynological Society.


  • 2019 – ongoing : Fellow of the Geological Society