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Kenneth De Baets

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Kenneth De Baets

Dr. Kenneth De Baets

de Baets, Kenneth

de Baets, Kenneth

Curator for the collections of the Department of Paleontology

Research interests

I am a paleontologist documenting and interpreting the relative contributions of abiotic (e.g., climate) and biotic factors (e.g., parasitism) in driving large-scale patterns in the evolution of life.

Current research focuses on biotic interactions, biomineralization, and macroecology. For example:

  • How does parasitism affect host biodiversity and skeletal disease?
  • How does seawater chemistry affect biomineralization of marine invertebrates?
  • How does body size distribution and growth respond to climate warming and related paleoenvironmental stressors?

For this purpose, I strive to work across disciplines and find means to test hypotheses with different lines of evidence, ranging from geology, paleontology, over quantitative paleobiology and paleontology, to ecology and biology.

Awards

  • 2017: Emerging Talents Initiative (Friedrich-Alexander-Universität Erlangen-Nürnberg)
  • 2012: Grant for Prospective Researchers, Swiss National Science Foundation
  • Membership in scientific societies

  • Geologica Belgica (Belgium)
  • Paläontologische Gesellschaft (Germany)
  • Palaeontological Association (United Kingdom)
  • Schweizerische Paläontologische Gesellschaft/Sociéte Paléontologique Suisse (Switzerland)
  • Society for the Study of Evolution (USA)
  • Publications

    Authored Books

    • de Baets K., Huntley JW.:
      The Evolution and Fossil Record of Parasitism: Coevolution and Paleoparasitological Techniques
      Cham: Springer, 2021
      (Topics in Geobiology, Vol.50)
      ISBN: 9783030522322
      DOI: 10.1007/978-3-030-52233-9
    • de Baets K., Huntley JW.:
      The Evolution and Fossil Record of Parasitism: Identification and Macroevolution of Parasites
      Cham: Springer, 2021
      (Topics in Geobiology, Vol.49)
      ISBN: 9783030424831
      DOI: 10.1007/978-3-030-42484-8
    • Klug C., Korn D., de Baets K., Kruta I., Mapes RH.:
      Ammonoid Paleobiology: From anatomy to ecology
      Dordrecht: Springer, 2015
      (Topics in Geobiology, Vol.43)
      ISBN: 978-94-017-9629-3
      DOI: 10.1007/978-94-017-9630-9
    • Klug C., Korn D., de Baets K., Kruta I., Mapes RH.:
      Ammonoid Paleobiology: From macroevolution to paleogeography
      Netherlands: Springer, 2015
      (Topics in Geobiology, Vol.44)
      ISBN: 978-94-017-9632-3
      DOI: 10.1007/978-94-017-9633-0
    • de Baets K., Littlewood DTJ.:
      Fossil Parasites
      Oxford: Academic Press, 2015
      (Advances in Parasitology, Vol.90)
      ISBN: 978-0-12-804001-0
    • de Baets K., Brinkmann W.:
      Paleontological Museum of the University of Zürich: Exhibition Guide
      Zürich: Universität Zürich, 2012
      ISBN: 978-3-906031-23-1

    Journal Articles

    • de Baets K., Nätscher P., Rita P., Fara E., Neige P., Bardin J., Dera G., Duarte LV., Hughes Z., Laschinger P., Carlos Garcia-Ramos J., Pinuela L., Übelacker C., Weis R.:
      The impact of the Pliensbachian–Toarcian crisis on belemnite assemblages and size distribution
      In: Swiss Journal of Palaeontology 140 (2021), Article No.: 25
      ISSN: 1664-2376
      DOI: 10.1186/s13358-021-00242-y
    • Klug C., Schweigert G., Hoffmann R., Weis R., de Baets K.:
      Fossilized leftover falls as sources of palaeoecological data: a ‘pabulite’ comprising a crustacean, a belemnite and a vertebrate from the Early Jurassic Posidonia Shale
      In: Swiss Journal of Palaeontology 140 (2021), Article No.: 10
      ISSN: 1664-2376
      DOI: 10.1186/s13358-021-00225-z
    • Klug C., Schweigert G., Fuchs D., de Baets K.:
      Distraction sinking and fossilized coleoid predatory behaviour from the German Early Jurassic
      In: Swiss Journal of Palaeontology 140 (2021), Article No.: 7
      ISSN: 1664-2376
      DOI: 10.1186/s13358-021-00218-y
    • Beck SM., de Baets K., Klug C., Korn D.:
      Analysis of septal spacing and septal crowding in Devonian and Carboniferous ammonoids
      In: Swiss Journal of Palaeontology 140 (2021), Article No.: 21
      ISSN: 1664-2376
      DOI: 10.1186/s13358-021-00235-x
    • de Baets K., Huntley JW., Scarponi D., Klompmaker AA., Skawina A.:
      Phanerozoic parasitism and marine metazoan diversity: dilution versus amplification
      In: Philosophical Transactions of the Royal Society B-Biological Sciences 376 (2021), p. 20200366
      ISSN: 0962-8436
      DOI: 10.1098/rstb.2020.0366
      URL: https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2020.0366
    • Nätscher P., Dera G., Reddin CJ., Rita P., de Baets K.:
      Morphological response accompanying size reduction of belemnites during an Early Jurassic hyperthermal event modulated by life history
      In: Scientific Reports 11 (2021), Article No.: 14480
      ISSN: 2045-2322
      DOI: 10.1038/s41598-021-93850-0
    • Costa Rita P., Duarte LV., Weis R., de Baets K.:
      Taxonomical diversity and palaeobiogeographical affinity of belemnites from the Pliensbachian–Toarcian GSSP (Lusitanian Basin, Portugal)
      In: Papers in Palaeontology 7 (2021), p. 1321-1349
      ISSN: 2056-2799
      DOI: 10.1002/spp2.1343
    • Hoffmann R., Slattery JS., Kruta I., Linzmeier BJ., Lemanis RE., Mironenko A., Goolaerts S., de Baets K., Peterman DJ., Klug C.:
      Recent advances in heteromorph ammonoid palaeobiology
      In: Biological Reviews (2021)
      ISSN: 1464-7931
      DOI: 10.1111/brv.12669
    • Klug C., Etter W., Hoffmann R., Fuchs D., de Baets K.:
      Jaws of a large belemnite and an ammonite from the Aalenian (Middle Jurassic) of Switzerland
      In: Swiss Journal of Palaeontology 139 (2020), Article No.: 4
      ISSN: 1664-2376
      DOI: 10.1186/s13358-020-00207-7
    • Petryshen W., Henderson CM., de Baets K., Jarochowska E.:
      Evidence of parallel evolution in the dental elements of Sweetognathus conodonts
      In: Proceedings of the Royal Society of London, Series B: Biological Sciences 287 (2020), p. 20201922-
      ISSN: 0962-8452
      DOI: 10.1098/rspb.2020.1922
    • Costa Rita P., Nätscher P., Duarte LV., Weis R., de Baets K.:
      Mechanisms and drivers of belemnite body-size dynamics across the Pliensbachian–Toarcian crisis
      In: Royal Society Open Science 6 (2019), Article No.: 190494
      ISSN: 2054-5703
      DOI: 10.1098/rsos.190494
    • Naglik C., de Baets K., Klug C.:
      Early Devonian ammonoid faunas in the Zeravshan Mountains (Uzbekistan and Tadjikistan) and the transition from a carbonate platform setting to pelagic sedimentation
      In: Bulletin of Geosciences 94 (2019), p. 337 - 368
      ISSN: 1214-1119
      DOI: 10.3140/bull.geosci.1721
      URL: http://www.geology.cz/bulletin/contents/art1721
    • Hoffmann R., Weinkauf M., Wiedenroth K., Goeddertz P., de Baets K.:
      Morphological disparity and ontogeny of the endemic heteromorph ammonite genus Aegocrioceras (Early Cretaceous, Hauterivian, NW-Germany)
      In: Palaeogeography, Palaeoclimatology, Palaeoecology 520 (2019), p. 1-17
      ISSN: 0031-0182
      DOI: 10.1016/j.palaeo.2019.01.020
    • Crônier C., Oudot M., Klug C., de Baets K.:
      Trilobites from the Red Fauna (latest Emsian, Devonian) of Hamar Laghdad, Morocco and their biodiversity
      In: Neues Jahrbuch für Geologie und Paläontologie-Abhandlungen 290 (2018), p. 241 - 276
      ISSN: 0077-7749
      DOI: 10.1127/njgpa/2018/0781
    • Klug C., Samankassou E., Pohle A., de Baets K., Franchi F., Korn D.:
      Oases of biodiversity: Early Devonian palaeoecology of Hamar Laghdad, Morocco
      In: Neues Jahrbuch für Geologie und Paläontologie-Abhandlungen 290 (2018), p. 9 - 48
      ISSN: 0077-7749
      DOI: 10.1127/njgpa/2018/0772
    • Wegerer M., de Baets K., Korn D.:
      Quantitative analysis of suture lines in Carboniferous ammonoids
      In: FOSSIL RECORD 21 (2018), p. 223-236
      ISSN: 2193-0066
      DOI: 10.5194/fr-21-223-2018
    • Costa Rita P., de Baets K., Schlott M.:
      Rostrum size differences between Toarcian belemnite battlefields
      In: FOSSIL RECORD 21 (2018), p. 171-182
      ISSN: 2193-0066
      DOI: 10.5194/fr-21-171-2018
    • de Baets K., Munnecke A.:
      Evidence for Palaeozoic orthoconic cephalopods with bimineralic shells
      In: Palaeontology (2018), p. 173–181
      ISSN: 0031-0239
      DOI: 10.1111/pala.12343
    • Meyer MB., Ganis GR., Wittmer JM., Zalasiewicz JA., de Baets K.:
      A Late Ordovician planktic assemblage with exceptionally preserved soft-bodied problematica from the Martinsburg Formation, Pennsylvania
      In: Palaios 33 (2018), p. 36-46
      ISSN: 0883-1351
      DOI: 10.2110/palo.2017.036
      URL: https://pubs.geoscienceworld.org/sepm/palaios/article-abstract/33/1/36/526248/a-late-ordovician-planktic-assemblage-with#.Wmgwwyi0nM8.twitter
    • Klug C., Frey L., Pohle A., de Baets K., Korn D.:
      Palaeozoic evolution of animal mouthparts
      In: Bulletin of Geosciences 92 (2017), p. 511-524
      ISSN: 1214-1119
      DOI: 10.3140/bull.geosci.1648
      URL: http://www.geology.cz/bulletin/fulltext/1648_Klug_180104.pdf
    • Stilkerich J., de Baets K., Smrecak TA.:
      3D-Analysis of a non-planispiral ammonoid from the Hunsruck Slate: natural or pathological variation?
      In: PeerJ 5 (2017)
      ISSN: 2167-8359
      DOI: 10.7717/peerj.3526
    • Gügel B., de Baets K., Jerjen I., Schuetz P., Klug C.:
      A new subdisarticulated machaeridian from the Middle Devonian of China: Insights into taphonomy and taxonomy using X-ray microtomography and 3D-analysis
      In: Acta Palaeontologica Polonica 62 (2017), p. 237-247
      ISSN: 0567-7920
      DOI: 10.4202/app.00346.2017
    • Clements T., Colleary C., de Baets K., Vinther J.:
      Buoyancy mechanisms limit preservation of coleoid cephalopod soft tissues in Mesozoic Lagerstätten
      In: Palaeontology 60 (2017), p. 1-14
      ISSN: 0031-0239
      DOI: 10.1111/pala.12267
    • Übelacker C., Jansen U., de Baets K.:
      First record of the Early Devonian ammonoid Teicherticeras from the Eifel (Germany): biogeographic and biostratigraphic importance
      In: Neues Jahrbuch für Geologie und Paläontologie-Abhandlungen 282 (2016), p. 201-208
      ISSN: 0077-7749
      DOI: 10.1127/njgpa/2016/0613
    • Dera G., Toumoulin A., de Baets K.:
      Diversity and morphological evolution of Jurassic belemnites from South Germany
      In: Palaeogeography, Palaeoclimatology, Palaeoecology 457 (2016), p. 80-97
      ISSN: 0031-0182
      DOI: 10.1016/j.palaeo.2016.05.029
    • Tessitore L., Naglik C., de Baets K., Galfetti T., Klug C.:
      Neptunian dykes in the Devonian carbonate buildup Aferdou El Mrakib (eastern Anti-Atlas, Morocco) and implications for its growth
      In: Neues Jahrbuch für Geologie und Paläontologie-Abhandlungen 281 (2016), p. 247-266
      ISSN: 0077-7749
      DOI: 10.1127/njgpa/2016/0598
    • de Baets K., Antonelli A., Donoghue PCJ.:
      Tectonic blocks and molecular clocks
      In: Philosophical Transactions of the Royal Society B-Biological Sciences 371 (2016)
      ISSN: 0962-8436
      DOI: 10.1098/rstb.2016.0098
    • de Baets K., Hoffmann R., Sessa JA., Klug C.:
      Fossil Focus: Ammonoids
      In: Palaeontology [online] 6 (2016), p. 1-15
      Open Access: http://www.palaeontologyonline.com/articles/2016/fossil-focus-ammonoids/
      URL: http://pdf.palaeontologyonline.com/articles-2016/Fossil_Focus_Ammonoids-DeBaets_Kenneth_Feb_2016.pdf
    • Klug C., de Baets K., Korn D.:
      Exploring the limits of morphospace: Ontogeny and ecology of late Viséan ammonoids from the Tafilalt, Morocco
      In: Acta Palaeontologica Polonica 61 (2016), p. 1-14
      ISSN: 0567-7920
      DOI: 10.4202/app.00220.2015
    • de Baets K., Dentzien-Dias P., Upeniece I., Verneau O., Donoghue PCJ.:
      Constraining the Deep Origin of Parasitic Flatworms and Host-Interactions with Fossil Evidence.
      In: Advances in Parasitology 90 (2015), p. 93-135
      ISSN: 0065-308X
      DOI: 10.1016/bs.apar.2015.06.002
    • de Baets K., Littlewood DTJ.:
      The Importance of Fossils in Understanding the Evolution of Parasites and Their Vectors
      In: Advances in Parasitology 90 (2015), p. 1-51
      ISSN: 0065-308X
      DOI: 10.1016/bs.apar.2015.07.001
    • Huntley JW., de Baets K.:
      Trace Fossil Evidence of Trematode-Bivalve Parasite-Host Interactions in Deep Time.
      In: Advances in Parasitology 90 (2015), p. 201-31
      ISSN: 0065-308X
      DOI: 10.1016/bs.apar.2015.05.004
    • Klug C., de Baets K., Kröger B., Bell MA., Korn D., Payne JL., de Baets K.:
      Normal giants? Temporal and latitudinal shifts of Palaeozoic marine invertebrate gigantism and global change
      In: Lethaia 48 (2015), p. 267-288
      ISSN: 0024-1164
      DOI: 10.1111/let.12104
    • Naglik C., Monnet C., Götz S., Kolb C., de Baets K., Tajika A., Klug C.:
      Growth trajectories of some major ammonoid sub-clades revealed by serial grinding tomography data
      In: Lethaia 48 (2015), p. 29-46
      ISSN: 0024-1164
      DOI: 10.1111/let.12085
    • Ritterbush KA., Hoffmann R., de Baets K., Lukeneder A.:
      Pelagic palaeoecology: the importance of recent constraints on ammonoid palaeobiology and life history
      In: Journal of Zoology 292 (2014), p. 229-241
      ISSN: 0952-8369
      DOI: 10.1111/jzo.12118
    • Klug C., de Baets K., Naglik C., Waters JA.:
      A new species of Tiaracrinus from the latest Emsian of Morocco and its phylogeny
      In: Acta Palaeontologica Polonica 59 (2014), p. 135-145
      ISSN: 0567-7920
      DOI: 10.4202/app.2011.0188
    • de Baets K., Klug C., Monnet C.:
      Intraspecific variability through ontogeny in early ammonoids
      In: Paleobiology 39 (2013), p. 75-94
      ISSN: 0094-8373
      DOI: 10.1666/0094-8373-39.1.75
    • de Baets K., Klug C., Korn D., Bartels C., Poschmann M.:
      Emsian Ammonoidea and the age of the Hunsruck Slate (Rhenish Mountains, Western Germany)
      In: Palaeontographica Abteilung A-Palaozoologie-Stratigraphie 299 (2013), p. 1-113
      ISSN: 0375-0442
    • de Baets K., Goolaerts S., Jansen U., Klug C., Rietbergen T.:
      The first record of Early Devonian ammonoids from Belgium and their stratigraphic significance
      In: Geologica Belgica 16 (2013), p. 148-156
      ISSN: 1374-8505
      Open Access: http://popups.ulg.ac.be/1374-8505/index.php?id=4222
    • de Baets K., Klug C., Korn D.:
      EARLY EVOLUTIONARY TRENDS IN AMMONOID EMBRYONIC DEVELOPMENT
      In: Evolution 66 (2012), p. 1788-1806
      ISSN: 0014-3820
      DOI: 10.1111/j.1558-5646.2011.01567.x
    • Mariotti N., Weis R., di Cencio A., Clément A., de Baets K.:
      New records of early Middle Jurassic belemnites in the French Subalpine Basin and their paleobiogeographic significance
      In: Geobios 45 (2012), p. 99-108
      ISSN: 0016-6995
      DOI: 10.1016/j.geobios.2011.11.012
    • Monnet C., Klug C., Goudemand N., de Baets K., Bucher H.:
      Quantitative biochronology of Devonian ammonoids from Morocco and proposals for a refined unitary association method
      In: Lethaia 44 (2011), p. 469-489
      ISSN: 0024-1164
      DOI: 10.1111/j.1502-3931.2010.00256.x
    • Monnet C., de Baets K., Klug C.:
      Parallel evolution controlled by adaptation and covariation in ammonoid cephalopods
      In: BMC Evolutionary Biology 11 (2011), Article No.: 115
      ISSN: 1471-2148
      DOI: 10.1186/1471-2148-11-115
    • de Baets K., Klug C., Korn D.:
      Devonian pearls and ammonoid-endoparasite co-evolution
      In: Acta Palaeontologica Polonica 56 (2011), p. 159-180
      ISSN: 0567-7920
      DOI: 10.4202/app.2010.0044
    • de Baets K., Klug C., Plusquellec Y.:
      Zlichovian faunas with early ammonoids from Morocco and their use for the correlation of the eastern Anti-Atlas and the western Dra Valley
      In: Bulletin of Geosciences 85 (2010), p. 317-352
      ISSN: 1214-1119
      DOI: 10.3140/bull.geosci.1172
    • Klug C., Schulz H., de Baets K.:
      Red Devonian trilobites with green eyes from Morocco and the silicification of the trilobite exoskeleton
      In: Acta Palaeontologica Polonica 54 (2009), p. 117-123
      ISSN: 0567-7920
      DOI: 10.4202/app.2009.0112
    • de Baets K., Klug C., Korn D.:
      Anetoceratinae (Ammonoidea, Early Devonian) from the Eifel and Harz Mountains (Germany), with a revision of their genera
      In: Neues Jahrbuch für Geologie und Paläontologie-Abhandlungen 252 (2009), p. 361-376
      ISSN: 0077-7749
      DOI: 10.1127/0077-7749/2009/0252-0361
    • de Baets K., Cecca F., Guiomar M., Verniers J.:
      Ammonites from the latest Aalenian-earliest Bathonian of La Baume (Castellane area, SE France): palaeontology and biostratigraphy
      In: Swiss Journal of Geosciences 101 (2008), p. 563-578
      ISSN: 1661-8726
      DOI: 10.1007/s00015-008-1297-6
    • Klug C., Korn D., Rücklin M., Schemm-Gregory M., de Baets K., Mapes RH., Kröger B.:
      Ecological change during the early Emsian (Devonian) in the Tafilalt (Morocco), the origin of the Ammonoidea, and the first African pyrgocystid edrioasteroids, machaerids and phyllocarids
      In: Palaeontographica Abteilung A-Palaozoologie-Stratigraphie 283 (2008), p. 83-U58
      ISSN: 0375-0442
      DOI: 10.1127/pala/283/2008/83

    Book Contributions

    • van Dijk J., de Baets K.:
      Biodiversity and Host–Parasite (Co)Extinction
      In: Kenneth De Baets, John Warren Huntley (ed.): The Evolution and Fossil Record of Parasitism, Cham: Springer, 2021, p. 75-97 (Topics in Geobiology, Vol.50)
      ISBN: 9783030522322

      DOI: 10.1007/978-3-030-52233-9_3
    • Huntley JW., de Baets K., Scarponi D., Linehan LC., Epa YR., Jacobs GS., Todd JA.:
      Bivalve Mollusks as Hosts in the Fossil Record
      In: Kenneth De Baets, John Warren Huntley (ed.): The Evolution and Fossil Record of Parasitism: Coevolution and Paleoparasitological Techniques, Cham: Springer, 2021, p. 203-249 (Topics in Geobiology, Vol.50)
      ISBN: 9783030522322

      DOI: 10.1007/978-3-030-52233-9_8
    • de Baets K., Hoffmann R., Mironenko A.:
      Evolutionary History of Cephalopod Pathologies Linked with Parasitism
      In: Kenneth De Baets, John Warren Huntley (ed.): The Evolution and Fossil Record of Parasitism: Coevolution and Paleoparasitological Techniques, Cham: Springer, 2021, p. 203-249 (Topics in Geobiology, Vol.50)
      ISBN: 9783030522322

      DOI: 10.1007/978-3-030-52233-9_7
    • de Baets K., Huntley JW., Klompmaker AA., Schiffbauer JD., Muscente AD.:
      The Fossil Record of Parasitism: Its Extent and Taphonomic Constraints
      In: Kenneth De Baets, John Warren Huntley (ed.): The Evolution and Fossil Record of Parasitism, Cham: Springer, 2021, p. 1-50 (Topics in Geobiology, Vol.50)
      ISBN: 9783030522322

      DOI: 10.1007/978-3-030-52233-9_1
    • de Baets K., Budil P., Fatka O., Geyer G.:
      Trilobites as Hosts for Parasites: From Paleopathologies to Etiologies
      In: Kenneth De Baets, John Warrem Huntley (ed.): The Evolution and Fossil Record of Parasitism, Cham: Springer, 2021, p. 173-201 (Topics in Geobiology, Vol.50)
      ISBN: 9783030522322

      DOI: 10.1007/978-3-030-52233-9_6
    • de Baets K., Dentzien-Dias P., Harrison GWM., Littlewood DTJ., Parry LA.:
      Fossil Constraints on the Timescale of Parasitic Helminth Evolution
      In: De Baets K, Huntley JW (ed.): The Evolution and Fossil Record of Parasitism: Identification and Macroevolution of Parasites, Springer, 2021, p. 231-271 (Topics in Geobiology, Vol.49)
      DOI: 10.1007/978-3-030-42484-8_7
      URL: https://ecoevorxiv.org/6jakv/
    • de Baets K., Landman N., Tanabe K.:
      Ammonoid Embryonic Development
      In: Klug C, Korn D, De Baets K, Kruta I, Mapes RH (ed.): Ammonoid Paleobiology: From anatomy to ecology, Dordrecht: Springer, 2015, p. 113--205 (Topics in Geobiology, Vol.43)
      ISBN: 978-94-017-9629-3

      DOI: 10.1007/978-94-017-9630-9_5
    • de Baets K., Bert D., Hoffmann R., Monnet C., Yacobucci MM., Klug C.:
      Ammonoid Intraspecific Variability
      In: Klug C, Korn D, De Baets K, Kruta I, Mapes RH (ed.): Ammonoid Paleobiology: From anatomy to ecology, Dordrecht: Springer, 2015, p. 359--426 (Topics in Geobiology, Vol.43)
      ISBN: 978-94-017-9629-3

      DOI: 10.1007/978-94-017-9630-9_9
    • Klug C., Kröger B., Vinther J., Fuchs D., de Baets K.:
      Ancestry, Origin and Early Evolution of Ammonoids
      In: Klug C, Korn D, De Baets K, Kruta I, Mapes RH (ed.): Ammonoid Paleobiology: From macroevolution to paleogeography, Dordrecht: Springer, 2015, p. 3--24 (Topics in Geobiology, Vol.44)
      ISBN: 978-94-017-9632-3

      DOI: 10.1007/978-94-017-9633-0_1
    • Korn D., de Baets K.:
      Biogeography of Paleozoic Ammonoids
      In: Klug C, Korn D, De Baets K, Kruta I, Mapes RH (ed.): Ammonoid Paleobiology: From macroevolution to paleogeography, Dordrecht: Springer, 2015, p. 145--161 (Topics in Geobiology, Vol.44)
      ISBN: 978-94-017-9632-3

      DOI: 10.1007/978-94-017-9633-0_6
    • de Baets K., Monnet C., Yacobucci MM.:
      Buckman’s Rules of Covariation
      In: Klug C, Korn D, De Baets K, Kruta I, Mapes RH (ed.): Ammonoid Paleobiology: From macroevolution to paleogeography, Dordrecht: Springer, 2015, p. 67--94 (Topics in Geobiology, Vol.44)
      ISBN: 978-94-017-9629-3

      DOI: 10.1007/978-94-017-9633-0_4
    • Klug C., Korn D., Landman N., Tanabe K., de Baets K., Naglik C.:
      Describing Ammonoid Conchs
      In: Klug C, Korn D, De Baets K, Kruta I, Mapes RH (ed.): Ammonoid Paleobiology: From anatomy to ecology, Dordrecht: Springer, 2015, p. 3--24 (Topics in Geobiology, Vol.43)
      ISBN: 978-94-017-9629-3

      DOI: 10.1007/978-94-017-9630-9_1
    • Monnet C., Klug C., de Baets K.:
      Evolutionary Patterns of Ammonoids: Phenotypic Trends, Convergence, and Parallel Evolution
      In: Klug C, Korn D, De Baets K, Kruta I, Mapes RH (ed.): Ammonoid Paleobiology: From macroevolution to paleogeography, Dordrecht: Springer, 2015, p. 95--142 (Topics in Geobiology, Vol.44)
      ISBN: 978-94-017-9632-3

      DOI: 10.1007/978-94-017-9633-0_5
    • de Baets K., Keupp H., Klug C.:
      Parasites of Ammonoids
      In: Klug C, Korn D, De Baets K, Kruta I, Mapes R H (ed.): Ammonoid Paleobiology: From anatomy to Ecology, Dordrecht: Springer, 2015, p. 837--875 (Topics in Geobiology, Vol.43)
      ISBN: 978-94-017-9629-3

      DOI: 10.1007/978-94-017-9630-9_20

    Miscellaneous

    • de Baets K.:
      Performance of machine-learning approaches in identifying ammonoid species based on conch properties
      (2021), Article No.: 100010
      DOI: 10.24072/pci.paleo.100010
      URL: https://paleo.peercommunityin.org/articles/rec?id=80
    • Hoffmann R., Weinkauf M., Wiedenroth K., Goeddertz P., de Baets K.:
      CONCH - ammonoid morphometric software
      (2019)
      DOI: 10.6084/m9.figshare.6287255.v1

    Projects

    • Size reductions during hyperthermal events: early warnings of environmental deterioration or signs of extinction? (EarlyWarn)

      (Third Party Funds Single)

      Term: since 1. December 2019
      Funding source: Deutsche Forschungsgemeinschaft (DFG)
      Abstract

      Size reductions in successive fossil assemblages during times of extinction are major features visible across a variety of temporal and spatial scales. The underlying environmental drivers and mechanisms are however still debated. In various cases, size responses predate the main extinction pulse suggesting that they might signal early environmental disruptions. The project proposed here aims to explicitly model size changes in a sequence stratigraphic framework to disentangle the local paleoenvironmental influences on these patterns from global ones. This approach will focus on within-facies and between-facies comparisons of mollusk and brachiopod assemblages of Permian-Triassic sections in Iran and various European Pliensbachian-Toarcian sections, hence covering a wide range of paleoenvironmental and preservational contexts before and across extinction events. These approaches are necessary to quantitatively disentangle the relative contribution of climate-related stressors and nutrient availability in driving patterns when filtering out potential collection and stratigraphy biases. The final part of the project will compare our newly collected high-resolution data with newly appended large size datasets considering appropriate facies, sequence stratigraphic and geochemical context to understand their relative contribution in the first comprehensive meta-analysis on these aspects of miniaturization (“Lilliput effect”). These datasets will also be used to disentangle the relative contribution of within-species size reductions, size-selective extinction/immigration and origination/immigration in driving size fluctuations during background conditions as well as during events ranging from minor biological crises to mass extinctions associated with hyperthermal events.

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    • The Evolution and Fossil Record of Parasitism: Identification and Macroevolution of Parasites

      (Own Funds)

      Term: 15. February 2017 - 15. May 2021
      Abstract
      This two-volume edited book highlights and reviews the potential of the fossil record to calibrate the origin and evolution of parasitism, and the techniques to understand the development of parasite-host associations and their relationships with environmental and ecological changes. The book deploys a broad and comprehensive approach, aimed at understanding the origins and developments of various parasite groups, in order to provide a wider evolutionary picture of parasitism as part of biodiversity. This supplements contributions by parasitologists that mostly focus on extrapolating from current host associations or distributions, to estimate constraints on the timing of the origin and evolution of various parasite groups. This approach allows a wider evolutionary picture of parasitism on, and as part of, biodiversity.

      Volume one focuses on identifying parasitism in the fossil record, and sheds light on the distribution and ecological importance of parasite-host interactions over time. In order to better understand the evolutionary history of parasites and their relationship with changes in the environment, emphasis is given to viruses, bacteria, protista and plants as parasites. Particular attention is given to metazoans such as molluscs, cnidarians, crustaceans and insects as parasites.  Researchers, specifically parasitologists, interested in the evolutionary history of parasite-host interactions, as well as students studying parasitism will find this book appealing.

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    • Constraining the deep origin of metazoan parasitism through integration of Evolutionary Parasitology and Molecular Paleobiology

      (FAU Funds)

      Term: 1. January 2017 - 31. March 2018
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    • Body size dynamics of cephalopods across the Pliensbachian-Toarcian crisis

      (Third Party Funds Group – Sub project)

      Overall project: Temperature-related stresses as a unifying principle in ancient extinctions (TERSANE)
      Term: 1. August 2016 - 31. July 2019
      Funding source: DFG / Forschergruppe (FOR)
      Abstract

      The reduction of body size within individual lineages is suggested to be one of the most important responses in the face of temperature-related stressors. Despite common suggestions of similar size changes around mass extinction events, the global significance as well as the mechanisms of this Lilliput effect are still controversial. This project aims at understanding the role of warming and associated stressors (anoxia) in driving body size changes of marine organisms in the Early Jurassic (Toarcian) crisis. We focus on cephalopods along a N/S-gradient of western Europe and northwestern Africa to explore patterns of body sizes from individual taxa to entire assemblages. Patterns will be explicitly analysed in the context of sedimentary facies, physico-chemical proxies and physiological predictions to test the correlation of body size with environmental parameters such as temperature, oxygenation and productivity/burial of organic carbon.

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    • Temperature-related stresses as a unifying principle in ancient extinctions

      (Third Party Funds Group – Sub project)

      Overall project: FOR 2332: Temperature-related stresses as a unifying principle in ancient extinctions (TERSANE)
      Term: 1. July 2016 - 30. June 2019
      Funding source: DFG / Forschergruppe (FOR)
      URL: https://www.gzn.fau.de/palaeoumwelt/projects/tersane/index.html
      Abstract

      Combined with local and regional anthropogenic factors, current human-induced climate warming is thought to be a major threat to biodiversity. The ecological imprint of climate change is already visible on land and in the oceans. The imprint is largely manifested in demographic/abundance changes and phenological and distribution shifts, whereas only local extinctions are yet attributable to climate change with some confidence. This is expected to change in the near future owing to direct heat stress, shortage of food, mismatches in the timing of seasonal activities, geographic barriers to migration, and new biological interactions. Additional stressors are associated with climate warming in marine systems, namely acidification and deoxygenation. Ocean acidification is caused by the ocean's absorption of CO2 and deoxygenation is a result of warmer water, increased ocean stratification and upwelling of hypoxic waters. The combination of warming, acidification and deoxygenation is known as the "deadly trio". Temperature is the most pervasive environmental factor shaping the functional characteristics and limits to life and is also central to the generation and biological effects of hypoxic waters and to modulating the effects of ocean acidification, with and without concomitant hypoxia. Due to the key role of temperature in the interaction of the three drivers we termed these temperature-related stressors (TRS).

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    Video screenshot: 3D-reconstruction of belemnite ‘Parapassaloteuthis zieteni’ from the lower Toarcian from Buttenheim in South Germany. Image: FAU/Patricia Rita

    Video Bemlemnite

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