Christian Mac Ørum Rasmussen
Special Consultant
Section for Geobiology
Øster Voldgade 5-7
1350 København K
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Virgiana Billings, 1857: on top of the world after 150 years
Rasmussen, Christian Mac Ørum & Harper, D. A. T., 2008, In: Palaeontology Newsletter. 66, p. 52 1 p.Research output: Contribution to journal › Conference abstract in journal › Research
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Da Nordpolen lå et sted i troperne
Rasmussen, Christian Mac Ørum & Harper, D. A. T., 2007, In: Naturens Verden. 90, 6, p. 2-13 12 p.Research output: Contribution to journal › Journal article › Communication
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Den østbaltiske Kunda Etage: starten på den store Ordoviciske biodiversifikation
Rasmussen, Christian Mac Ørum & Harper, D. A. T., 2005, In: Varv. 4, p. 3-23 21 p.Research output: Contribution to journal › Journal article › Communication
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Depth - related brachiopod bioevents in the Middle Ordovician (Kundan) of Baltica
Rasmussen, Christian Mac Ørum & Harper, D. A. T., 2007, Programme with Abstracts: IGCP 503 Annual Meeting. Owen, A. (ed.). University of Glasgow, p. 40 1 p.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research
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Survival of the thickest: Late Ordovician - Early Silurian brachiopods from Peary Land, North Greenland
Rasmussen, Christian Mac Ørum, Harper, D. A. T., Jin, J., Rasmussen, Jan Audun Liljeroth & Stouge, Svend, 2007, Lundadagarna i Historisk geologi och paleontologi: Abstracts with programme. Terfelt, F. & Axheimer, N. (eds.). Lund University Press, p. 35 1 p.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research
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A Baltic Perspective on the Early to Early Late Ordovician δ13C and δ18O Records and Its Paleoenvironmental Significance
Edward, O., Korte, Christoph, Ullmann, C. V., Colmenar, J., Thibault, Nicolas Rudolph, Bagnoli, G., Stouge, Svend & Rasmussen, Christian Mac Ørum, Mar 2022, In: Paleoceanography and Paleoclimatology. 37, 3, 26 p., e2021PA004309.Research output: Contribution to journal › Journal article › Research › peer-review
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A multidisciplinary perspective on the Great Ordovician Biodiversification Event and the development of the early Paleozoic world
Stigall, A. L., Freeman, R. L., Edwards, C. T. & Rasmussen, Christian Mac Ørum, 2020, In: Palaeogeography, Palaeoclimatology, Palaeoecology - An International Journal for the Geo-Sciences. 543, 8 p., 109521.Research output: Contribution to journal › Editorial › Research › peer-review
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A sequence of temporally separated element peaks; the fingerprint of a biogeochemical event initiated by sedimentary exhalative (SEDEX) brine expulsion
Arts, M., Cramer, B., Calner, M., Rasmussen, Christian Mac Ørum, Bancroft, A., Oborny, S., Hartke, E., Biebesheimer, E. & Silva, A. D., 4 Mar 2021Research output: Other contribution › Research
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A synopsis of Late Ordovician brachiopod diversity in the Anti-Atlas, Morocco
Colmenar Lallena, J., Villas, E. & Rasmussen, Christian Mac Ørum, 2022, The Great Ordovician Biodiversification Event: Insights from the Tafilalt Biota, Morocco. 1 ed. London: Geological Society of London, Vol. 485. p. 153-163 (Geological Society Special Publication; No. 1, Vol. 485).Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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A temporal framework for the Mid–early Late Ordovician of Baltica
Rasmussen, Christian Mac Ørum, Thibault, Nicolas Rudolph, Stouge, Svend, Calner, M., Rasmussen, Jan Audun Liljeroth, Lindskog, A., Bauert, H., Sinnesael, M., Edward, O., Bagnoli, G., Siggaard-Andersen, Marie-Louise, Wu, R., Bauert, G., Ullmann, C. V., Korte, Christoph, Schovsbo, N. & Nielsen, Arne Thorshøj, 2021, In: Journal de l’Association Paléontologique Française. 2021, Numéro Spécial 2, p. 66Research output: Contribution to journal › Conference abstract in journal › Research
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An atypical Late Ordovician Red River brachiopod fauna from eastern North Greenland: eastward, offshore migration of the Hiscobeccus-fauna
Rasmussen, Christian Mac Ørum & Harper, D. A. T., 2010, Programme and Abstracts, The Palaecontological Association, 54th Annual Meeting 17th-20th December 2010, Ghent University. The Palaeontological Association, p. 68 1 p.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research
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An imprint of astronomical climate forcing in the Baltoscandian Middle Ordovician ‘orthoceratite limestone’?
Rasmussen, Christian Mac Ørum, Sinnesael, M., Thibault, Nicolas Rudolph, Stouge, Svend, Siggaard-Andersen, Marie-Louise & Schovsbo, N., 2019, In: Geophysical Research Abstracts. 21, 14038, 1 p.Research output: Contribution to journal › Conference abstract in journal › Research
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Andesbjergenes rødder
Harper, D. A. T., Rasmussen, Jan Audun Liljeroth, Rasmussen, Christian Mac Ørum, Stemmerik, L. & Pineda, G. A. H., 2007, In: Geoviden. 3, p. 12-15 4 p.Research output: Contribution to journal › Journal article › Communication
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Baltica: a mid Ordovician diversity hotspot
Rasmussen, Christian Mac Ørum, Hansen, J. & Harper, D. A. T., 2007, In: Historical Biology. 19, 3, p. 255-261 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Biodiversity, biogeography and phylogeography of Ordovician rhynchonelliform brachiopods
Harper, D. A. T., Rasmussen, Christian Mac Ørum, Liljeroth, M., Blodgett, R. B., Candela, Y., Jin, J., Percival, I. G., Rong, J. Y., Villas, E. & Zhan, R. B., 2013, Early palaeozoic biogeography and palaeogeography. Harper, D. A. T. & Servais, T. (eds.). Geological Society, p. 127-144 18 p. (Geological Society of London. Memoirs; No. 38).Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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Biogeographic and bathymetric determinants of brachiopod extinction and survival during the Late Ordovician mass extinction
Finnegan, S., Rasmussen, Christian Mac Ørum & Harper, D. A. T., 2016, In: Proceedings of the Royal Society B: Biological Sciences. 283, 1829, 9 p., 20160007.Research output: Contribution to journal › Journal article › Research › peer-review
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Building mountain biodiversity: geological and evolutionary processes
Rahbek, Carsten, Borregaard, Michael Krabbe, Antonelli, A., K. Colwell, R., Holt, B. G., Nogues, David Bravo, Rasmussen, Christian Mac Ørum, Richardson, Katherine, Rosing, Minik Thorleif, Whittaker, R. J. & Fjeldså, Jon, 2019, In: Science. 365, 6458, p. 1114-1119 6 p.Research output: Contribution to journal › Review › Research › peer-review
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Carbon isotope chemostratigraphy and sea-level history of the Hirnantian Stage (uppermost Ordovician) in the Oslo-Asker district, Norway
Calner, M., Bockelie, J. F., Rasmussen, Christian Mac Ørum, Calner, H., Lehnert, O. & Joachimski, M. M., 2021, In: Geological Magazine. 58, 11, p. 1977-2008 32 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Cascading trend of Early Paleozoic marine radiations paused by Late Ordovician extinctions
Rasmussen, Christian Mac Ørum, Kroger, B., Nielsen, Morten Lunde & Colmenar, J., 9 Apr 2019, In: Proceedings of the National Academy of Sciences of the United States of America. 116, 15, p. 7207-7213 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Coordinated biotic and abiotic change during the Great Ordovician Biodiversification Event: Darriwilian assembly of early Paleozoic building blocks
Stigall, A. L., Edwards, C. T., Freeman, R. L. & Rasmussen, Christian Mac Ørum, 15 Sep 2019, In: Palaeogeography, Palaeoclimatology, Palaeoecology - An International Journal for the Geo-Sciences. 530, p. 249-270 22 p.Research output: Contribution to journal › Review › Research › peer-review
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Correction to ‘The evolutionary dynamics of the Early Palaeozoic marine biodiversity accumulation’
Kröger, B., Franeck, F. & Rasmussen, Christian Mac Ørum, 4 Dec 2019, In: Proceedings of the Royal Society B: Biological Sciences. 286, 1916, 3 p., 20192358.Research output: Contribution to journal › Journal article › Research › peer-review
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Cyclo and chemostratigraphic characteristics of the Middle Silurian in Gotland, Sweden
Arts, M., Cramer, B., Calner, M., Rasmussen, Christian Mac Ørum, Bancroft, A., Oborny, S., Hartke, E., Biebesheimer, E. & Silva, A. D., 2020. 1 p.Research output: Contribution to conference › Poster › Research
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Da temperaturen faldt, fik livet fart på
Rasmussen, Christian Mac Ørum, 6 Aug 2019Research output: Other contribution › Net publication - Internet publication › Communication
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Diachronism in the Ordovician brachiopod diversification: Extrinsic and intrinsic factors
Harper, D. A. T. & Rasmussen, Christian Mac Ørum, 2007, Lundadagarna i Historisk geologi och paleontologi: Abstracts with programme. Terfelt, F. & Axheimer, N. (eds.). Lund University Press, p. 23 1 p.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research
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Did the amalgamation of continents drive the end Ordovician mass extinctions?
Rasmussen, Christian Mac Ørum & Harper, D. A. T., 2011, In: Palaeogeography, Palaeoclimatology, Palaeoecology - An International Journal for the Geo-Sciences. 311, 1-2, p. 48-62 15 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Early Mid Ordovician (Kundan) brachiopods from the Eastern Baltic: biostratigraphy, palaeogeography and palaeoecology
Rasmussen, Christian Mac Ørum & Harper, D. A. T., 2004, Palaeontological Association Newsletter. 57 ed. Frankrig, p. 176Research output: Chapter in Book/Report/Conference proceeding › Preface/postscript › Research
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Ecostratigraphical interpretation of lower Middle Ordovician East Baltic sections based on brachiopods
Rasmussen, Christian Mac Ørum, Nielsen, Arne Thorshøj & Harper, D. A. T., 2009, In: Geological Magazine. 146, p. 717-731 15 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Ecostratigraphical interpretation of the lower Middle Ordovician (Kundan) argillaceous limestones from the Eastern Baltic based on brachiopods.
Rasmussen, Christian Mac Ørum, Harper, D. A. T. & Nielsen, Arne Thorshøj, 2005, In: Palaeontology Newsletter. 60, p. 54Research output: Contribution to journal › Journal article › Research › peer-review
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End Ordovician extinctions: a coincidence of causes
Harper, D. A. T., Hammarlund, E. U. & Rasmussen, Christian Mac Ørum, 2014, In: Gondwana Research. 25, 4, p. 1294-1307 14 p.Research output: Contribution to journal › Review › Research › peer-review
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Et køligere klima kan skabe øget biodiversitet
Rasmussen, Christian Mac Ørum, 6 Jan 2016Research output: Other contribution › Net publication - Internet publication › Communication
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Final destination, first discovered: the tale of Oanduporella Hints, 1975
Rasmussen, Christian Mac Ørum, May 2011, Ordovician of the World. Gutiérrez-Marco, J. C., Rábano, I. & García-Bellido, D. (eds.). Instituto Geológico y Minero de España, p. 447-455 9 p. (Publicaciones del Instituto Geológico y Minero de España. Serie: Cuadernos del Museo Geominero; No. 14).Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
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Gamma-ray log correlation and stratigraphic architecture of the Cambro-Ordovician Alum Shale Formation on Bornholm, Denmark: Evidence for differential syndepositional isostasy
Nielsen, Arne Thorshøj, Schovsbo, N. H., Klitten, K., Woollhead, D. & Rasmussen, Christian Mac Ørum, 2018, In: Bulletin of the Geological Society of Denmark. 66, p. 237-273 18 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Identifying the most surprising victims of mass extinction events: an example using Late Ordovician brachiopods
Finnegan, S., Rasmussen, Christian Mac Ørum & Harper, D. A. T., Sep 2017, In: Biology Letters. 13, 9, 5 p., 20170400.Research output: Contribution to journal › Letter › Research › peer-review
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Integrating bed-by-bed palaeobiological and geochemical proxies through the onset of the Great Ordovician Biodiversification Event on Baltica
Rasmussen, Christian Mac Ørum, Ullmann, C. V., Jakobsen, K. G., Lindskog, A., Hansen, J., Hansen, T., Eriksson, M. E., Dronov, A., Frei, Robert, Korte, Christoph, Nielsen, Arne Thorshøj & Harper, D. A. T., 2014, p. 81.Research output: Contribution to conference › Conference abstract for conference › Research
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Interrogation of distributional data for the End Ordovician crisis interval: where did disaster strike?
Rasmussen, Christian Mac Ørum & Harper, D. A. T., 2011, In: Geological Journal. 46, 5, p. 478-500 23 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Kundan (early Mid Ordovician) brachiopods from the Baltic: biostratigraphy and ecostratigraphy.
Rasmussen, Christian Mac Ørum & Harper, D. A. T., 2005, In: GFF. 127, p. 54 1 p.Research output: Contribution to journal › Journal article › Research
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Late Ordovician and early Silurian virgianid and stricklandioid brachiopods from North Greenland: implications for a warm-water faunal province
Jin, J., Rasmussen, Christian Mac Ørum, Sheehan, P. M. & Harper, D. A. T., 2024, In: Papers in Palaeontology. 10, 1, 42 p., e1544.Research output: Contribution to journal › Journal article › Research › peer-review
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Late Ordovician brachiopods from West-central Alaska: systematics, ecology and palaeobiogeography
Rasmussen, Christian Mac Ørum, Harper, D. A. T. & Blodgett, R. B., 2012, Wiley-Blackwell. 103 p. (Fossils and Strata, Vol. 58).Research output: Book/Report › Book › Research › peer-review
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Late Ordovician brachiopods from eastern North Greenland: equatorial offshore migration of the Red River fauna
Rasmussen, Christian Mac Ørum, Mar 2013, In: Palaeontology. 56, 2, p. 359-379 21 p.Research output: Contribution to journal › Journal article › Research › peer-review
Late Ordovician carbonate mounds from North Greenland: a peri-Laurentian dimension to the Boda Event?
Harper, D. A. T., Jin, J. & Rasmussen, Christian Mac Ørum, 2014, In: GFF. 136, 1, p. 95-99 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Middle Ordovician astrochronology decouples asteroid breakup from glacially-induced biotic radiations
Rasmussen, Jan Audun Liljeroth, Thibault, Nicolas Rudolph & Rasmussen, Christian Mac Ørum, Dec 2021, In: Nature Communications. 12, 1, 14 p., 6430.Research output: Contribution to journal › Journal article › Research › peer-review
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Middle Ordovician carbonate facies development, conodont biostratigraphy and faunal diversity patterns at the Lynna River, northwestern Russia
Lindskog, A., Eriksson, M. E., Rasmussen, J. A., Dronov, A. & Rasmussen, Christian Mac Ørum, 2020, In: Estonian Journal of Earth Sciences. 69, 1, p. 37-61Research output: Contribution to journal › Journal article › Research › peer-review
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Occurrence of the Late Ordovician Red River lithofacies and biofacies in North Greenland.
Jin, J., Harper, D. A. T., Rasmussen, Jan Audun Liljeroth, Rasmussen, Christian Mac Ørum & Stouge, Svend, 2008, In: Canadian Paleontology Conference Proceedings. 6, p. 18-21 4 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Onset of main Phanerozoic marine radiation sparked by emerging Mid Ordovician icehouse
Rasmussen, Christian Mac Ørum, Ullmann, C. V., Jakobsen, K. G., Lindskog, A., Hansen, J., Hansen, T., Eriksson, M. E., Dronov, A., Frei, Robert, Korte, Christoph, Nielsen, Arne Thorshøj & Harper, D. A. T., 2016, In: Scientific Reports. 6, 9 p., 18884.Research output: Contribution to journal › Journal article › Research › peer-review
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Overview of the pentameride brachiopod succession (upper Ordovician – lower Silurian) in Børglum Elv and G.B. Schley Fjord, Peary Land, North Greenland
Harper, D. A. T., Jin, J., Rasmussen, Christian Mac Ørum, Rasmussen, Jan Audun Liljeroth & Stouge, Svend, 2007, Acta Palaeontologica Sinica. Nanjing, Vol. 46 supplement. p. 176 – 180 5 p.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
Phylogeography of Ordovician-Silurian rhynchonelliformean brachiopods: tracking higher order distributional patterns, radiations and extinctions in 4D
Rasmussen, Christian Mac Ørum, 2014, In: GFF. 136, 1, p. 223-228 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Precisely locating the Ordovician equator in Laurentia
Jin, J., Harper, D. A. T., Cocks, L. R. M., McCausland, P. J. A., Rasmussen, Christian Mac Ørum & Sheehan, P. M., Feb 2013, In: Geology. 41, 2, p. 107-110 4 p.Research output: Contribution to journal › Journal article › Research › peer-review
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På fossiljagt i Andesbjergenes rødder: et bidrag til rekonstruktion af fortidens geografi
Stemmerik, L., Harper, D. A. T., Rasmussen, Jan Audun Liljeroth, Rasmussen, Christian Mac Ørum & Pincda, G. A. H., 2008, In: Geografisk Orientering. 38, 1, p. 428-432Research output: Contribution to journal › Journal article › Communication
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Reclaiming the tropical shores of Laurentia: the early Silurian pentameroid (r)evolution
Rasmussen, Christian Mac Ørum, Sep 2011, In: G F F. 133, 1-2, p. 70-71 2 p.Research output: Contribution to journal › Conference abstract in journal › Research › peer-review
ID: 8280
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Onset of main Phanerozoic marine radiation sparked by emerging Mid Ordovician icehouse
Research output: Contribution to journal › Journal article › Research › peer-review
Published -
161
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Middle Ordovician carbonate facies development, conodont biostratigraphy and faunal diversity patterns at the Lynna River, northwestern Russia
Research output: Contribution to journal › Journal article › Research › peer-review
Published -
143
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Refined Ordovician timescale reveals no link between asteroid breakup and biodiversification
Research output: Contribution to journal › Journal article › Research › peer-review
Published