David Harper

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  1. 2019
  2. An extraterrestrial trigger for the mid-Ordovician ice age: Dust from the breakup of the L-chondrite parent body

    Birger Schmitz, Farley, K. A., Goderis, S., Heck, P. R., Bergström, S. M., Samuele Boschi, Claeys, P., Debaille, V., Dronov, A., van Ginneken, M., David A.T. Harper, Iqbal, F., Johan Friberg, Liao, S., Ellinor Martin, Meier, M. M. M., Peucker-Ehrenbrink, B., Soens, B., Wieler, R. & Fredrik Terfelt, 2019 Sep 18, In : Science Advances. 5, 9, eaax4184.

    Research output: Contribution to journalArticle

  3. The Sirius Passet Lagerstätte of North Greenland—A geochemical window on early Cambrian low-oxygen environments and ecosystems

    Emma U. Hammarlund, Smith, M. P., Rasmussen, J. A., Nielsen, A. T., Canfield, D. E. & David A.T. Harper, 2019 Jan, In : Geobiology. 17, 1, p. 12-26

    Research output: Contribution to journalArticle

  4. The Furongian (late Cambrian) Biodiversity Gap: Real or apparent?

    David A.T. Harper, Topper, T. P., Cascales-Miñana, B., Servais, T., Zhang, Y. D. & Per Ahlberg, 2019, In : Palaeoworld. 28, 1-2, p. 4-12

    Research output: Contribution to journalArticle

  5. 2018
  6. Contextualizing the Onset of the Great Ordovician Biodiversification Event

    David A.T. Harper & Servais, T., 2018 Apr 1, In : Lethaia. 51, 2, p. 149-150 2 p.

    Research output: Contribution to journalArticle

  7. The Great Ordovician Biodiversification Event (GOBE): definition, concept and duration

    Servais, T. & David A.T. Harper, 2018 Apr 1, In : Lethaia. 51, 2, p. 151-164 14 p.

    Research output: Contribution to journalArticle

  8. Possible patterns of marine primary productivity during the Great Ordovician Biodiversification Event

    Pohl, A., David A.T. Harper, Donnadieu, Y., Le Hir, G., Nardin, E. & Servais, T., 2018 Apr, In : Lethaia. 51, 2, p. 187-197

    Research output: Contribution to journalArticle

  9. 2017
  10. Identifying the most surprising victims of mass extinction events: An example using Late Ordovician brachiopods

    Finnegan, S., Rasmussen, C. M. Ø. & David A.T. Harper, 2017 Sep 1, In : Biology letters. 13, 9, 20170400.

    Research output: Contribution to journalArticle

  11. Brachiopods: Origin and early history

    David A.T. Harper, .Popov, L. E. & Holmer, L. E., 2017 Sep, In : Palaeontology. 60, 5, p. 609-631

    Research output: Contribution to journalArticle

  12. Echinoids as hard substrates: Varied examples from the Oligocene of Antigua, Lesser Antilles

    Donovan, S. K., David A.T. Harper, Portell, R. W. & Toomey, J. K., 2017 Jun, In : Proceedings of the Geologists' Association. 128, 3, p. 326-331

    Research output: Contribution to journalArticle

  13. Mass extinctions over the last 500 myr: An astronomical cause?

    Erlykin, A. D., David A T Harper, Sloan, T. & Wolfendale, A. W., 2017 Mar, In : Palaeontology. 60, 2, p. 159-167

    Research output: Contribution to journalArticle

  14. A new silurian ophiuroid from the west of Ireland

    Blake, D. B., Donovan, S. K. & David A.T. Harper, 2017 Jan 1, In : Irish Journal of Earth Sciences. 35, p. 57-66 10 p.

    Research output: Contribution to journalArticle

  15. Late Ordovician deep-water brachiopod fauna from Raheen, Waterford harbour, Ireland

    David A.T. Harper, Parkes, M. A. & Ren-Bin, Z., 2017, In : Irish Journal of Earth Sciences. 35, p. 1-18 18 p.

    Research output: Contribution to journalArticle

  16. 2016
  17. Biogeographic and bathymetric determinants of brachiopod extinction and survival during the late ordovician mass extinction

    Finnegan, S., Rasmussen, C. M. Ø. & David A T Harper, 2016 Apr 27, In : Proceedings of the Royal Society B: Biological Sciences. 283, 1829, 20160007.

    Research output: Contribution to journalArticle

  18. 2014
  19. End Ordovician extinctions: A coincidence of causes

    David A T Harper, Emma U. Hammarlund & Rasmussen, C. M. Ø., 2014, In : Gondwana Research. 25, 4, p. 1294-1307 14 p.

    Research output: Contribution to journalReview article

  20. 2012
  21. A sulfidic driver for the end-Ordovician mass extinction

    Emma U. Hammarlund, Dahl, T. W., David A T Harper, Bond, D. P. G., Nielsen, A. T., Bjerrum, C. J., Schovsbo, N. H., Schönlaub, H. P., Zalasiewicz, J. A. & Canfield, D. E., 2012 May 15, In : Earth and Planetary Science Letters. 331-332, p. 128-139 12 p.

    Research output: Contribution to journalArticle