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T-bana: Universitetet
Frescativägen 40

Ordinarie öppettider:
Tisdag–fredag 11–17
Lördag–söndag 10–18

  • Huvudmeny

Thomas Denk Publications

Electronic versions of all these publications can be downloaded from http://www.academia.edu/external link


Denk, T., Güner, H. T. & Bouchal, J. M. 2022. Catalogue of revised and new plant macrofossils from the Aquitanian-Burdigalian of Soma (W Turkey) – Biogeographic and palaeoclimatic implications. Review of Palaeobotnay and Palynology 296: 104550. https://doi.org/10.1016/j.revpalbo.2021.104550external link


Adroit, B., Teodoridis, V., Güner, T. H., Denk, T. 2021. Patterns of insect damage types reflect complex environmental signal in Miocene forest biomes of Central Europe and the Mediterranean. Global and Planetary Change 199, 103451. https://doi.org/10.1016/j.gloplacha.2021.103451external link

Denk, T., & Bouchal, J.M., 2021. Dispersed pollen and calyx remains of Dinospyros (Ebenaceae) from the middle Miocene “Plant beds” of Søby, Denmark. GFF. https://doi.org/10.1080/11035897.2021.1907443external link

Denk, T. & Bouchal, J. M. 2021. New Fagaceous pollen taxa from the Miocene Søby flora of Denmark and their biogeographic implications. American Journal of Botany 108: 1500-1524. DOI: https://doi.org/10.1002/ajb2.1716external link

Denk, T., Bouchal, J. M., Smirnov, P., Trubin, Y. 2021. Late Oligocene leaf and pollen flora of Southwestern Siberia: taxonomy, biogeography and palaeoenvironments. Historical Biology 33: 2951-2976. DOI: https://doi.org/10.1080/08912963.2020.1839064external link

Denk, T., Güner, H. T., Bouchal, J. M., Kallanxhi, M.-E. 2021. The Pleistocene flora of Bezhan, southeast Albania: early appearance of extant tree species. Historical Biology 33: 283-305. DOI: https://doi.org/10.1080/08912963.2019.1615061external link

Grímsson, F., Denk, T., Zetter, R. 2021. Cenozoic vegetation and phytogeography of the sub-arctic North Atlantic. In: E. Panagiotakopulu, J.P. Sadler (eds), Biogeography in the Sub-Arctic: The Past and Future of the North Atlantic Biotas. John Wiley & Sons Ltd, 29-49. ISBN: 978-1-118-56147-8

Piredda, R., Grimm, G., Schulze, E.-D., Denk, T., Simeone, M. 2021. High-throughput sequencing of 5S-IGS in oaks - exploring intragenomic variation and algorithms to recognize target species in pure and mixed samples. Molecular Ecology Resources 21, 495-510. doi: https://doi.org/10.1111/1755-0998.13264external link


Bouchal, J.M. & Denk, T., 2020. Low taxonomic resolution of papillate Cupressaceae pollen (former Taxodiaceae) impairs their applicability for palaeo-habitat reconstruction. Grana 59, 71–93. https://doi.org/10.1080/00173134.2019.1701704external link

Bouchal, J.M. Güner, T.H., Velitzelos, D., Velitzelos, E. & Denk, T., 2020. Messinian vegetation and climate of the intermontane Florina–Ptolemais–Servia Basin, NW Greece inferred from palaeobotanical data: how well do plant fossils reflect past? Royal Society Open Science 7(5), 192067. https://doi.org/10.1098/rsos.192067external link

Dagtekin, D., Şahan, E.A., Denk, T., Köse, N. & Dalfes, H.N., 2020. Past, present and future distributions of Oriental beech (Fagus orientalis) under climate change projections.PloS one 15, e0242280. https://doi.org/10.1371/journal.pone.0242280external link

Denk, T., Hipp, A.L., Manos, P.S., Hahn, M., Avishai, M. & Bodénès, C., 2020. Genomic landscape of the global oak phylogeny. New Phytologist 226: 1198–1212. https://doi.org/10.1111/nph.16162external link

Kvaček, Z. & Vasilis Teodoridis, V. & Denk, T., 2020. The Pliocene flora of Frankfurt am Main, Germany: taxonomy, palaeoenvironments and biogeographic affinities. Palaeobiodiversity and Palaeoenvironments 100, 647–703. https://doi.org/10.1007/s12549-019-00391-6external link

Sadowski, E.-M., Schmidt, A.R. & Denk, T., 2020. Staminate inflorescences with in situ pollen from Eocene Baltic amber reveal high diversity in Fagaceae (oak family). Willdenowia 50, 405–517. https://doi.org/10.3372/wi.50.50303external link


Bouchal, J. M., Güner, T. H. and Denk, T., 2018. Middle Miocene climate of southwestern Anatolia from multiple botanical proxies. Climates of the Past, Vol. 14: 1427–1440. https://www.clim-past.net/14/1427/2018/external link

Denk, T., Zohner, C. M., Grimm, G. W. & Renner, S. S. 2018. Plant fossils reveal major biomes occupied by the late Miocene Old-World Pikermian fauna. Nature Ecology & Evolution. https://www.nature.com/articles/s41559-018-0695-zexternal link

Sadowski, E.-M., Hammel, J. U. & Denk, T. 2018. Synchrotron X- ray imaging of a dichasium cupule of Castanopsis from Eocene Baltic amber. American Journal of Botany 105 (12): 1-12. doi:10.1002/ajb2.1202external link

Simeone, M. C., Cardoni, S., Piredda, R., Imperatori, F., Avishai, M., Grimm, G. W., Denk, T. 2018. Comparative systematics and phylogeography of Quercus Section Cerris in western Eurasia: inferences from plastid and nuclear DNA variation. PeerJ 6: e5793. https://doi.org/10.7717/peerj.5793external link


Bouchal, J. M., Mayda, S., Zetter, R., Grímsson, F. and Denk, T., 2017. Miocene palynofloras of the Tinaz lignite mine, Mugla, southwest Anatolia: Taxonomy, palaeoecology and local vegetation change. Review of Paleobotany and Palynology, Vol. 243: 1-36.

Denk, T., Güner, T. H., Kvaček, Z. and Bouchal, J. M., 2017. The early Miocene flora of Güvem (Central Anatolia, Turkey): a window into early Neogene vegetation and environments in the Eastern Mediterranean. Acta Palaeobotanica, Vol. 57 (no 2): 237-338. Journal websiteexternal link

Denk, T., Velitzelos, D., Güner, T. H., Bouchal, J. M., Grímsson, F. and Grimm, G., 2017. Taxonomy and palaeoecology of two widespread western Eurasian Neogene sclerophyllous oak species: Quercus drymeja Unger and Q. mediterranea Unger. Review of Palaeobotany and Palynology, Vol. 241: 98-128. Journal websiteexternal link

Güner, T. H., Bouchal, J. M., Köse, N., Göktas, F., Mayda, S., and Denk, T., 2017. Landscape heterogeneity in the Zatagan Basin (southwestern Turkey) during the middle Miocene inferred from plant macrofossils. Palaeobographica, Abt. B, Vol. 296 (no 1–6): 113-171. Journal websiteexternal link


Bouchal, J. M., Zetter. R., Denk, T., 2016. Pollen and spores of the uppermost Eocene Florissant Formation, Colorado: a combined light and scanning electron microscopy study. Grana 55 (3): 179-245.

Bouchal, J. M., Grímsson, F., Zetter, R., Denk, T., 2016. The middle Miocene palynoflora and palaeoenvironments of Eskihisar (Yatağan Basin, southwestern Anatolia): a combined LM and SEM investigation. Botanical Journal of the Linnean Society 182 (1): 14-19.

Denk, T. 2016. Palaeoecological interpretation of the late Miocene landscapes and vegetation of northern Greece: a comment to Merceron et al., 2016. Geobios, doi:10.1016/j.geobios.2016.01.004.

Grimm, G.W., Bouchal, J. M., Denk, T., Potts, A. 2016. Fables and foibles: A critical analysis of the Palaeoflora database and the Coexistence Approach for palaeoclimate reconstruction. Review of Palaeobotany and Palynology 223: 216-235. http://dx.doi.org/10.1016/j.revpalbo.2016.07.001external link

Renner, S. S., Grimm, G., Kapli, P., Denk, T., 2016. Species relationships and divergence times of beeches (Fagus): New insights from the inclusion of numerous fossil beech species in a birth-death clock approach. Philosophical Transactions of the Royal Society B 20150135. http://rstb.royalsocietypublishing.org/content/371/1699/20150135external link

Simeone, M. C., Grimm, G. W., Papini, A., Vessella, F., Cardoni, S., Tordoni, E., Piredda, R., Franc, A., Denk, T., 2016. Plastome data reveal multiple geographic origins of Quercus Group Ilex. PeerJ 4:e 1897. DOI 10.7717/peerj.1897external link


Grímsson, F., Zetter, R., Grimm, G. W., Pedersen, G. K., Pedersen, A. K., Denk, T. 2015. Fagaceae pollen from the early Cenozoic of West Greenland: revisiting Engler’s and Chaney’s Arcto-Tertiary hypotheses. Plant Systematics and Evolution 301: 809–832.

Denk, T., Velitzelos, D., Güner, H. T., Ferrufino-Acosta, L. 2015. Smilax from the Miocene of the eastern Mediterranean with Caribbean biogeographic affinities. American Journal of Botany 102: 423-438.

Grímsson, F., Zetter, R., Denk, T. 2015. Cenozoic vegetation and phytogeography of the sub-arctic North Atlantic. In: E. Panagiotakopulu (ed.), Biogeography in the Sub-Arctic: The Past and Future of North Atlantic Biotas. Wiley. ISBN: 978-1-118-56147-8.

Grimm, G., Denk, T., Bouchal, J. M., Potts, A. J. 2015. Fables and foibles: a critical analysis of the Palaeoflora database and the Coexistence Approach for palaeoclimate reconstruction. bioRxiv, 016378


Bouchal, J. M., Zetter, R., Grímsson, F., and Denk, T., 2014. Evolutionary trends and ecological differentiation in early Cenozoic Fagaceae of western North America. American Journal of Botany 101: 1332–1349.

Denk, T., Güner, H. T. and Grimm, G. W., 2014. From mesic to arid: Leaf epidermal features suggest preadaptation in Miocene dragon trees (Dracaena). Review of Palaeobotany and Palynology 200: 211-228.

Denk, T., and Tekleva, M. V., 2014. Pollen morphology and ultrastructure of Quercus with focus on Group Ilex (=Quercus Subgenus Heterobalanus (Oerst.) Menitsky): implications for oak systematics and evolution. Grana 53: 255-282.

Grimm, G. W. and Denk, T., 2014. The Colchic region as refuge for relict tree lineages: cryptic speciation in field maples. Turkish Journal of Botany 38: 1050–1066.

Grímsson, F., Zetter, R., Grimm, G. W., Krarup Pedersen, G., Pedersen, A. K. and Denk, T., 2014. Fagaceae pollen from the early Cenozoic of West Greenland: revisiting Engler's and Chaney's Arcto-Tertiary hypotheses. Plant Systematics & Evolution doi: 10.1007/s00606-014-1118-5external link

Velitzelos, D., Bouchal, J. M. and Denk, T., 2014. Review of the Cenozic floras and vegetation of Greece. Review of Palaeobotany and Palynology 204: 56–117.


Denk, T., Grimm, G. W., Grímsson, F. and Zetter, R. in press. Effective heat transport of Gulf Stream to subarctic North Atlantic during Miocene cooling. Biogeosciences.


Denk, T., Grimm, G. W. and Röseler, A.-K., 2012. When field botany meets history: taxonomy of Platanus mexicana Moric. in Mexico. Willdenowia 42: 99-115.

Denk, T., Grímsson, F. and Zetter, R., 2012. Fagaceae from the Early Oligocene of Central Europe: persisting New World and emerging Old World biogeographic links. Review of Palaeobotany and Palynology 169: 7-20.

Grimm, G. W. and Denk, T., 2012. Reliability and resolution of the coexistence approach - a revalidation using modern-day data. Review of Palaeobotany and Palynology 172: 33-47.

Güner, T. and Denk, T., 2012. The genus Mahonia in the Miocene of Turkey: taxonomy and biogeographic implications. Review of Palaeobotany and Palynology 175: 32-46.

Tekleva, M. V. and Denk, T., 2012. Sporoderm ultrastructure of Platanus quedlinburgensis Pacltová emend. Tschan, Denk & von Balthazar from the Late Cretaceous of Germany. Acta Palaeobotanica 52(1): 177-191.

Tschan, G. F. and Denk, T., 2012. Trichome types, foliar indumentum, and epicuticular wax in the Mediterranean ‘Gall Oaks´, Quercus subsectio Galliferae (Spach) Guerke; (Fagaceae): implications for taxonomy, ecology, and evolution. Botanical Journal of the Linnean Society 169: 611-644.


Denk, T., Grimsson, F., Zetter, R. and Símonarson, L. A., 2011.  Late Cainozoic Floras of Iceland. 15 Million Years of Vegetation and Climate History in the Northern North Atlantic. Topics in Geobiology 35. Springer. Dordrecht. 870 pp. ISBN 978-94-007-0371-1

Wappler, T. and Denk T., 2011. Herbivory in early Tertiary Arctic forests. Palaeogeography, Palaeoclimatology, Palaeoecology 310: 283-295.


Denk, T. and Grimm, G. W., 2010. The oaks of western Eurasia: Traditional classifications and evidence from two nuclear markers. Taxon 59: 351-366.

Denk, T., Grímsson, F., Zetter, R.,  2010. Episodic migration of oaks to Iceland — Evidence for a North Atlantic “land bridge" in the latest Miocene. American Journal of Botany 97: 276-287.

Grimm, G. W. and Denk, T., 2010. The reticulate origin of modern plane trees (Platanus, Platanaceae) - a nuclear marker puzzle. Taxon 59: 134-147.

Tekleva, M. V., Maslova, N. P. and  Denk, T.,2010. Evolution of pollen characters of the Platanaceae. Proceedings of the XII Moscow meeting on plant phylogeny. Moscow: KMK. P. 308-311.


Denk, T. and Grimm, G. W., 2009. Significance of pollen characteristics for infrageneric classification and phylogeny in Quercus (Fagaceae). International Journal of Plant Science  170: 926-940.

Denk, T. and Grimm, G. W., 2009. The biogeographic history of beech trees. Review of Palaeobotany & Palynology 158: 83-100.


Grimm, G. W. & Denk, T., 2008. ITS Evolution in Platanus (Platanaceae): Homoeologues, Pseudogenes and Ancient Hybridization. Annals of Botany 101: 403-419.

Grímsson, F., Denk, T. & Zetter, R., 2008. Pollen, fruits, and leaves of Tetracentron (Trochodendraceae) from the Cainozoic of Iceland and western North America and their palaeobiogeographic implications. Grana 47: 1-14.

Tschan, G.F., Denk, T. & von Balthazar, M., 2008. Credneria and Platanus (Platanaceae) from the Late Cretaceous (Santonian) of Quedlinburg, Germany. Review of Palaeobotany and Palynology152: 211-236.

von Balthazar, M., Schönenberger, J. & Denk, T., 2008. In Search of the Earliest Flowers: Introduction. International Journal of Plant Sciences 169: 815-815.


Grimm, G.W., Denk, T., Hemleben, V. 2007. Coding of intraspecific nucleotide polymorphisms: a tool to resolve reticulate evolutionary relationships in the ITS of beech trees (Fagus L., Fagaceae). Systematics and Biodiversity 5(3): 291-309.

Grimm, G.W., Denk, T., Hemleben, V. 2007. The Evolutionary History and Systematics of Acer section Acer − a case study of low-level phylogenetics. Plant Systematic and Evolution 267: 215-253.

Grímsson, F., Denk, T. 2007. Floristic turnover on Iceland 15 to 6 Ma - extracting biogeographic signals from fossil floral assemblages. Journal of Biogeography 34: 1490-1504.

Grímsson, F., Denk, T. and Símonarson, L.A. 2007. Middle Miocene floras of Iceland  - the early colonization of an island? Review of Palaeobotany and Palynology 144: 181-219.

Grímmson, F., Símonarson, L. A., Denk, T. 2007. Elstu gróðursamfélög íslenskrar jarðsögu. (Late Langhian to early Seravallian floras of Iceland. In Icelandic with English summary.) Náttúrufræðingurinn 75 (2-4): 85-106.

Uhl, D., Traiser, C., Griesser, U. and Denk, T., 2007. Fossil leaves as palaeoclimate proxies in the Palaeogene of Spitsbergen (Svalbard). Acta Palaeobotanica 47(1): 89—107.


Denk, T. & Tekleva, M.V. 2006. Comparative pollen morphology and ultrastructure of Platanus: Implications for phylogeny and evaluation of the fossil record. Grana 45: 195-221.

Denk, T. 2006. Rhododendron ponticum var. sebinense in the Late Pleistocene flora of Hötting, Northern Calcareous Alps: witness of a climate warmer than today? Veröffentlichungen des Tiroler Landesmuseums Ferdinandeum 85: 5-30.


Denk, T. & Dillhoff, R. M. 2005. Ulmus leaves and fruits from the Early-Middle Eocene of northwestern North America: Systematics and implications for character evolution within Ulmaceae. Canadian Journal of Botany, 83:.

Denk, T. & Grimm, G., 2005, Phylogeny and biogeography of Zelkova (Ulmaceae s.str.) as inferred from leaf morphology, ITS sequence data and the fossil record. Botanical Journal of the Linnean Society 147: 129-157.

Denk, T. & Oh, I.-C., 2005, Phylogeny of Schisandraceae based on morphological data: evidence from modern plants and the fossil record. Plant Systematics and Evolution 256:113-145.

Denk, T., Grimm, G. & Hemleben, V., 2005. Patterns of molecular and morphological differentiation in Fagus: Phylogenetic implications. American Journal of Botany 92: 1006-1016.

Denk, T., Grímsson, G. & Kvacek, Z., 2005. The Miocene flora of Iceland and its significance for late Cainozoic North Atlantic biogeography. Botanical Journal of the Linnean Society149: 369-417.

Grímsson, F. & Denk, T., 2005. Fagus from the Miocene of Iceland: Systematics and biogeographical considerations. Review of Palaeobotany and Palynology134: 27-54.


Denk, T. 2004 Revision of Fagus from the Cenozoic of Europe and southwestern Asia and its phylogenetic implications. Documenta Naturae 150: 1-72


Denk, T., 2003. Phylogeny of Fagus L. (Fagaceae) based on morphological data. Plant Systematics & Evolution 240: 55-81.

Oh, I.-C., Denk, T., & Friis, E.-M., 2003. Phylogeny of Illicium (Illiciaceae): Mapping morphological characters on the molecular tree. Plant Systematics & Evolution240: 175-209.

Wang, Q., Hao, S.-G., Wang, D.-M., Wang, Y., & Denk, T., 2003. A Late Devonian arborescent lycopsid Sublepidodendron songziense Chen emend. Sublepidodendraceae sensu Kräusel et Weyland, 1949 from China, with a revision of the genus Sublepidodendron (Nathorst) Hirmer, 1927. Review of Palaeobotany and Palynology :in press


Denk, T. 2002. Revision of Tertiary Fagus cupules from Russia, Transcaucasia and western Siberia. Feddes Repertorium113: 193-210.

Denk, T., Grimm, G., Stögerer, K., Langer, M. & Hemleben, V. 2002. The evolutionary history of Fagus in western Eurasia: Evidence from genes,morphology and the fossil record. Plant Systematics and Evolution 232: 213-236.

Denk, T. & Velitzelos, D. 2002. First evidence of epidermal structures of Ginkgo from the Mediterranean Tertiary. Review of Palaeobotany and Palynology 120: 1-15.

Kottis, T., Chryssanthi, I., Velitzelos, E., Kvacek, Z., Denk, T., Velitzelos, D., 2002. Field guide to the Neogene of the island of Evvia- Early Miocene Flora of Kymi. 6th European Paleobotany - Palynology Conference. Athens, August 29 - September 2.


Denk, T., Frotzler, N. & Davitashvili, N. 2001. Vegetational patterns and distribution of relict taxa in humid temperate forests and wetlands of Georgia (Transcaucasia). Biological Journal of the Linnean Society 72: 287-332.

Denk, T. & Meller, B. 2001. Systematic significance of the cupule/nut complex in living and fossil Fagus. International Journal of Plant Sciences 162(4): 869-897.

Wang, Y.-F., Ferguson, D. K., Zetter, R., Denk, T. & Garfi, G. 2001. Leaf architecture and epidermal characters in Zelkova, Ulmaceae. Botanical Journal of the Linnean Society 136: 255-265.


Denk, T. 2000. Die Flora des Gumpenecks und des Walchengrabens in den Wölzer Tauern (Steiermark). Joannea Bot. 1: 27-114.


Denk, T. 1999. The taxonomy of Fagus in western Eurasia, 1: Fagus sylvatica subsp. orientalis (=F. orientalis). Feddes Repertorium 110 (3-4): 177-200.

Denk, T. 1999. The taxonomy of Fagus in western Eurasia, 2: Fagus sylvatica subsp. sylvatica. Feddes Repertorium 110 (5-6): 381-412.

Denk, T. 1999. The taxonomy of Fagus in western Eurasia and the ancestors of Fagus sylvatica s. l. Acta Paleobotanica. Suppl. 2.: 633-641.

Denk, T., Wanntorp, L. & Manum, S. B. With the assistance of Haglund, O. 1999. Catalogue of the Tertiary plant fossils from Spitsbergen housed in the Swedish Museum of Natural History, Stockholm. Swedish Museum of Natural History, Stockholm. 184 pp.

Ferguson, D. K., Hoffmann, C.-C. & Denk, T. 1999. Taphonomy: field techniques in modern environments. I: Jones, T. P. & Rowe, N. P. (eds.). Fossil plants and spores: modern techniques: 210-213. Geological Society, London.


Denk, T. 1998. Cystopteris regia (L.) Desvaux (Pteridophyta) - new for Iran. Iranian Journal of Botany 7(2): 259-264.

Denk, T. 1998. The beech (Fagus L.) in western Eurasia - an actualistic approach. Feddes Repertorium 109(5-6): 435-463.