Geier Christian

Christian Geier, BSc MSc

Scientific project collaborator (prae doc)
PhD Student
Ground floor, room 1
t: +43 (0)1 4277-540 00
m: christian.geier@univie.ac.at

Title of the Doctoral Thesis

Flower-insect interactions in the Eocene to Oligocene of Central Europe

Research interests

Palynology
Ultrastructure of plants
X-Ray CT
Flower-insect interactions
pollination biology

Projects

Scientific project collaborator FWF-Project P 34303-B "Flower Power: can in-situ pollen link fossil plants to floral visitors?" (Friðgeir Grímsson)

Curriculum Vitae

Current position

2022– PhD student/Scientific project collaborator (prae doc) FWF-Project P 34303-B

Education and scientific career

2022– PhD Biology
2022 Master's Theses "The late middle Miocene palynoflora of Gratkorn, Styria, Austria"
2021 Student project collaborator FWF-Project P 29501-B25
2020–2022 Master's Programme Botany, University of Vienna
2016–2020 Bachelor's in biology with specialization in botany, University of Vienna (Thesis: Investigations to the distribution of Microthlaspi erraticum and Microthlaspi perfoliatum in eastern Austria using ITS based phylogeny)

Publications

2024

Geier, C., Bouchal, J. M., Ulrich, S., Uhl, D., Wappler, T., Wedmann, S., Zetter, R., Schönenberger, J., & Grimsson, F. (2024). Potential pollinators and paleoecological aspects of Eocene Ludwigia (Onagraceae) from Eckfeld, Germany. Palaeoworld, 33(4), 1079-1104. https://doi.org/10.1016/j.palwor.2023.07.003

Wuttke, M., Poschmann, M. J., Wappler, T., Bouchal, J. M., Geier, C., Ulrich, S., & Grimsson, F. (2024). Pollen-feeding in a giant pelobatid tadpole from the late Oligocene of Enspel, Germany. Palaeobiodiversity and Palaeoenvironments, [s12549-024-00603-8]. https://doi.org/10.1007/s12549-024-00603-8

Geier, C., Engel, M. S., Bouchal, J. M., Ulrich, S., Grimsson, F., Wedmann, S., & Wappler, T. (2024). The earliest large carpenter bee (Xylocopa) and its adhering pollen (Araliaceae, Theaceae). Palaeobiodiversity and Palaeoenvironments. https://doi.org/10.1007/s12549-024-00604-7

Auer, W. (Author), Geier, C. (Author), Bouchal, J. M. (Author), & Grimsson, F. (Author). (2024). Tilia americana. Web publication https://www.paldat.org/pub/Tilia_americana/306663

Ulrich, S., Vieira, M., Coiro, M., Bouchal, J. M., Geier, C., Jacobs, B. F., Currano, E. D., Lenz, O. K., Wilde, V., Zetter, R., & Grimsson, F. (2024). Origin and Early Evolution of Hydrocharitaceae and the Ancestral Role of Stratiotes. Plants, 13(7), [1008]. https://doi.org/10.3390/plants13071008

Geier, C. (Author), Bouchal, J. M. (Author), & Grimsson, F. (Author). (2024). Tilia chinensis. Web publication https://www.paldat.org/pub/Tilia_chinensis/306674

Halbritter, H. (Author), Heigl, H. (Author), Auer, W. (Author), Gastaldi, C. (Author), Geier, C. (Author), Bouchal, J. M. (Author), & Grimsson, F. (Author). (2024). Tilia cordata. Web publication https://www.paldat.org/pub/Tilia_cordata/306671

Geier, C. (Author), Bouchal, J. M. (Author), & Grimsson, F. (Author). (2024). Tilia endochrysea. Web publication https://www.paldat.org/pub/Tilia_endochrysea/306676

Geier, C. (Author), Bouchal, J. M. (Author), & Grimsson, F. (Author). (2024). Tilia miqueliana. Web publication https://www.paldat.org/pub/Tilia_miqueliana/306675

Geier, C. (Author), Bouchal, J. M. (Author), & Grimsson, F. (Author). (2024). Tilia mongolica. Web publication https://www.paldat.org/pub/Tilia_mongolica/306670

Halbritter, H. (Author), Hesse, M. (Author), Heigl, H. (Author), Auer, W. (Author), Geier, C. (Author), Bouchal, J. M. (Author), & Grimsson, F. (Author). (2024). Tilia platyphyllos. Web publication https://www.paldat.org/pub/Tilia_platyphyllos/306672

Sam, S. (Author), Heigl, H. (Author), Auer, W. (Author), Geier, C. (Author), Bouchal, J. M. (Author), & Grimsson, F. (Author). (2024). Tilia tomentosa. Web publication https://www.paldat.org/pub/Tilia_tomentosa/306673

Geier, C. (Author), Bouchal, J. M. (Author), & Grimsson, F. (Author). (2024). Tilia japonica. Web publication https://www.paldat.org/pub/Tilia_japonica/306664

Ulrich, S., Geier, C., Bouchal, J. M., Zetter, R., Schönenberger, J., Uhl, D., & Grimsson, F. (2024). Combined LM and EM investigations of pollen from compressed fossil flowers aid in their taxonomic assignment. In J. Bek, & J. Votočková Frojdová (Eds.), XV International Palynological Congress - XI International Organization of Palaeobotany Conference: Abstract Book (pp. 125-126). [O-236] CZECH-IN s. r. o..

Till, A., Geier, C., Bouchal, J. M., Ulrich, S., Wedmann, S., Cantrill, D., & Grimsson, F. (2024). Did beetles visit Pseudanthus (Picrodendraceae) flowers in the Eocene of Europe? In J. Bek, & J. Votočková Frojdová (Eds.), XV International Palynological Congress - XI International Organization of Palaeobotany Conference: Abstract Book (pp. 132-133). [O-248] CZECH-IN s. r. o..

Geier, C., Bouchal, J. M., Ulrich, S., Uhl, D., Wedmann, S., Wappler, T., & Grimsson, F. (2024). Eocene flower visitation of European Diptera and their potential pollinator role. In EGU General Assembly 2024 - Abstracts [egusphere-egu24-5607]. https://doi.org/10.5194/egusphere-egu24-5607

Grimsson, F., Geier, C., Bouchal, J. M., Ulrich, S., Schönenberger, J., Uhl, D., Wedmann, S., Zetter, R., & Wappler, T. (2024). Flowers and insects with in situ and/or adhered pollen from Eckfeld (Eocene) and Enspel (Oligocene), Germany. In J. Bek, & J. Votočková Frojdová (Eds.), XV International Palynological Congress - XI International Organization of Palaeobotany Conference: Abstract Book (pp. 127). [O-238] CZECH-IN s. r. o..

Bouchal, J. M., Geier, C., Ulrich, S., Uhl, D., Wedmann, S., Wappler, T., & Grimsson, F. (2024). Fossil Coleoptera with in situ and adhered pollen from the Eocene of Eckfeld, Germany. In EGU General Assembly 2024 - Abstracts [egusphere-egu24-5326]. https://doi.org/10.5194/egusphere-egu24-5326

Geier, C., Bouchal, J. M., Ulrich, S., Zetter, R., Schönenberger, J., Uhl, D., Wedmann, S., Wappler, T., & Grimsson, F. (2024). Matching Messel flowers with their insect visitors via pollen. In J. Bek, & J. Votočková Frojdová (Eds.), XV International Palynological Congress - XI International Organization of Palaeobotany Conference: Abstract Book (pp. 124-125). [O-234] CZECH-IN s. r. o..

Wedmann, S., Bouchal, J. M., Boudet, L., Engel, M., Geier, C., Grimsson, F., Poschmann, M. J., Schindler, T., & Wappler, T. (2024). Paleodiversity of paleogene hymenopteran insects and their interactions with flowers. In K. De Baets, & A. Kaim (Eds.), PALGES 2024 WARSAW: Abstract Book (pp. 161). https://doi.org/10.4202/app.01209.2024

Geier, C. (2022) The late middle Miocene palynoflora of Gratkorn, Styria, Austria. University of Vienna (Masterthesis)

Geier, C. (2020) Investigations to the distribution of Microthlaspi erraticum and Microthlaspi perfoliatum in eastern Austria using ITS based phylogeny. University of Vienna (Bachelorthesis)