Lennart M. van Maldegem

Education

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2013-2017

PhD in Geosciences

University of Bremen, Germany

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2011-2012

MSc in Geochemistry

University of Leeds, United Kingdom

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2007-2011

BSc in Chemistry

Avans University, The Netherlands

           

Research experience

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2018–Present  

Postdoctoral Research Fellow at The Australian National University             
Project: The Lost World of Complex Life; Brocks Geobiology Laboratory, Research School of Earth Sciences, The Australian National University, Canberra, Australia; Mentored by Jochen Brocks

 

2013–2017   

Doctoral Researcher at The Max Planck Institute for Biogeochemistry                
Thesis: Molecular and isotopic signatures of life surrounding the Neoproterozoic Snowball Earth Events; Organic Paleobiogeochemistry Group, Max Plank Institute for Biogeochemistry, Bremen, Germany;Supervised by Christian Hallmann

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2012

MSc dissertation project at the University of Leeds
Thesis: Adsorption of Ni(II) to ferrihydrite and ferrihydrite-bacteria composites; Cohen geochemistry research group, School of Earth and Environment, University of Leeds, United Kingdom; Supervised by Caroline Peacock

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2011

BSc dissertation project at the Kyungpook National University
Thesis: Cloning and recombinant protein expression of the human Prmt5 gene, Structural Biology Group, Kyungpook National University, Deagu, South Korea; Supervised by Eric DiLuccio

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2010–2011

BSc research apprenticeship at the Royal NIOZ                
Report: Purification and quantification of archaeal tetraether lipids; Marine microbiology and biogeochemistry group (MMB), Royal Netherlands Institute for Sea Research (NIOZ), the Netherlands; Supervised by Stefan Schouten

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Publications

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Bisnorgammacerane traces predatory pressure and the persistent rise of algal ecosystems after Snowball Earth (2019) Nature Communications, 10-1 

Van Maldegem, L. M., Sansjofre, P., Weijers, J. W. H., Wolkenstein K., Strother, P. K., Wormer, L., Hefter, J., Nettersheim, B. J., Hoshino, Y., Schouten, S., Sinnighe Damsté, J. S., Nath, N., Griesinger, C., Kuznetsov, N.B., Elie, M., Elvert, M., Tegelaar, E., Gleixner, G., and Hallmann, C.

 

 Cryogenian evolution of stigmasteroid biosynthesis (2017) Science Advances 3, no. 9 

Hoshino, Y., Poshibaeva, A.,  Meredith, W., Snape, C., Versteegh G. J. M., Kuznetsov, N., Leider, A.,     Van Maldegem, L.M., Neumann, M., Naeher, S., Moczydłowska, M., Brocks, J.J., Jarrett, A.J.M., Tang, Q., Xiao, S., McKirdy, D., Das, S. K., Alvaro, J. J., Sansjofre, P. and Hallmann, C.

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Geological alteration of Precambrian steroids mimics early animal signatures (2020) Nature Ecology

       and Evolution 

        Van Maldegem, L. M., Nettersheim, B.J., Leider, A., Brocks, J. J., Adam, P., Schaeffer, P., and

       Hallmann, C.

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Substantial maturity influence on carbon and hydrogen isotopic composition of n-alkanes in
       sedimentary rocks (2021) Organic Geochemistry

        Vinnichenko, G., Jarrett, A. M.,  Van Maldegem, L. M., and Brocks, J. J.,

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 Submitted manuscripts

 

Redox and community control on Precambrian carbon isotope systematics (under review) 

Van Maldegem, L. M., et al., 

 

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Selected presentations

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29th International Meeting in Organic Geochemistry 2019, Gothenburg, Sweden “A diagenetic origin for Neoproterozoic 26-alkyl steranes” (oral presentation)

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Goldschmidt 2019, Barcelona, Spain “Life after the Sturtian” (oral presentation)

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Goldschmidt 2018, Boston, USA “Extreme heterotrophy after Snowball Earth” (oral presentation)

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28th International Meeting in Organic Geochemistry 2017, Florence, Italy “Proterozoic carbon isotope systematics are influenced by redox and community composition” (oral presentation, awarded best oral presentation)

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2016 Bremen PhD days in Marine Sciences, Etelsen, Germany “On the Origins of Complex Life” (oral presentation, awarded best oral presentation)

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2015 AGU Fall Meeting, San Francisco, USA ”Paleo-environmental reconstruction of ~40ka stromatolites from the ancient Lake Lahontan, Nevada, USA” (Invited oral presentation)

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AbSciCon 2015, Chicago, USA “Dynamics of the pre-Sturtian carbon cycle” (oral presentation)

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Student (co-)supervision

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2018 – Present         Jordan Kinsley (PhD candidate, The Australian National University)      

2018 – Present         Tharika Liyanage (PhD candidate, The Australian National University)             

2018 – Present         Caleb Bishop (PhD candidate, The Australian National University)                

2019 – 2019             Merve Öztoprak (MSc student, University of München, Germany)               

2018 – Present         Claire Patterson (BSc Honours student, Australian National University)     

2020 – Present          Zoe Hills (BSc Honours Student, Australian National University)     

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Teaching

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2019 – Present

EMSC3020: Geobiology and the Evolution of Life on Earth (3rd year undergraduate, Australian National University, Course awarded with the 2019 Bear McPhail Excellence in Teaching Award)

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2018

EMSC2019: Geobiology and the Evolution of Life on Earth (2nd year undergraduate, The Australian National University)

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Workshops and summer schools

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2017

Snowball Earth Workshop, IPGP, Paris, France

 

2016

Building a Habitable Earth, University of Tubingen, Germany

 

2015

Agouron Geobiology Summerschool, University of Southern California, USA

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Community support

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2018 - Present

Reviewer for: Organic Geochemistry, Geobiology, Phytochemistry, and Marine Petroleum Geochemistry

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2018

Co-organizer of the 20th Australian Organic Geochemistry Conference
Responsible for assembling the program and timetable, catering, booking hotels and flights for invited speakers, conference technology support and design of all visuals.

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2015 – 2017 

PhD Representative
Elected representative for the PhD community in all governing bodies within MARUM and GLOMAR at the University of Bremen, Germany.

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Field trips and cruises

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2019    Mount Kosciuszko, Snowy Mountains, Australia (participant)
2018    Australian Superbasin, Northern Territories, Australia (organizer)
2016    Petershill Formation, Bathgate Scotland (organizer)
2014    Nankoweap Butte, Grand Canyon, Arizona, USA (co-organizer)   
2013    Southern Urals, Russia (participant)
2011    NiCycle (II) Cruise on the RV Pelagia (participant)
2010    NiCycle (I) Cruise on the RV Pelagia (participant)