Per Ahlberg

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  1. 2019
  2. 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 Feb 12, In : Palaeoworld.

    Research output: Contribution to journalArticle

  3. Integrated Cambrian biostratigraphy and carbon isotope chemostratigraphy of the Grönhögen-2015 drill core, Öland, Sweden

    PER AHLBERG, LUNDBERG, FRANS., MIKAEL ERLSTRÖM, MIKAEL CALNER, ANDERS LINDSKOG, DAHLQVIST, PETER. & JOACHIMSKI, MICHAEL. M., 2019, In : Geological Magazine. 156, 06, p. 935-949 15 p.

    Research output: Contribution to journalArticle

  4. The complexity of mudstone diagenesis–some insight from the Tøyen Shale, Lower to Middle Ordovician, southern Sweden

    Egenhoff, S. O., Fishman, N. S., Lowers, H. A. & Per Ahlberg, 2019, In : GFF. 141, 1, p. 54-67

    Research output: Contribution to journalArticle

  5. 2018
  6. Darriwilian (Middle Ordovician) chemostratigraphy linked to graptolite, conodont and trilobite biostratigraphy in the Fågelsång-3 drill core, Scania, Sweden

    Bergström, S. M., Per Ahlberg, Maletz, J., Lundberg, F. & Joachimski, M. M., 2018 Jun 15, In : GFF. 140, 3, p. 229-240 12 p.

    Research output: Contribution to journalArticle

  7. The Cambrian–Ordovician succession at Lanna, Sweden: stratigraphy and depositional environments

    Anders Lindskog, Lindskog, A. M. L., Johansson, J. V., Per Ahlberg & Mats Eriksson, 2018 Apr 3, In : Estonian Journal of Earth Sciences. 67, 2, p. 133–148

    Research output: Contribution to journalArticle

  8. Sedimentology of the Lower Ordovician (upper Tremadocian) Bjørkåsholmen Formation at Flagabro, southern Sweden

    Egenhoff, S., Maletz, J., Per Ahlberg, Mast, A., Frisk, Å. M., Ebbestad, J. O. R. & Newby, W., 2018 Jan 2, In : GFF. 140, 1, p. 55-65 11 p.

    Research output: Contribution to journalArticle

  9. Early post-embryonic development in Ellipsostrenua (Trilobita, Cambrian, Sweden) and the developmental patterns in Ellipsocephaloidea

    Laibl, L., Cederström, P. & Per Ahlberg, 2018, In : Journal of Paleontology. 92, 6, p. 1018-1027 10 p.

    Research output: Contribution to journalArticle

  10. The Lower Ordovician Tøyen Shale succession in the Fågelsång-3 drill core, Scania, Sweden

    Maletz, J. & Per Ahlberg, 2018, In : GFF. 140, 4, p. 293-305

    Research output: Contribution to journalArticle

  11. 2017
  12. Challenges in defining the base of Cambrian Series 2 and Stage 3

    Zhang, X., Per Ahlberg, Babcock, L. E., Choi, D. K., Geyer, G., Gozalo, R., Stewart Hollingsworth, J., Li, G., Naimark, E. B., Pegel, T. V., Steiner, M., Wotte, T. & Zhang, Z., 2017 Sep 1, In : Earth-Science Reviews. 172, p. 124-139 16 p.

    Research output: Contribution to journalDebate/Note/Editorial

  13. Cambrian trilobite biostratigraphy and its role in developing an integrated history of the Earth system

    Babcock, L. E., Peng, S. & Per Ahlberg, 2017 Jul, In : Lethaia. 50, 3, p. 381-399

    Research output: Contribution to journalArticle

  14. 2016
  15. Cambrian stratigraphy of the Tomten-1 drill core, Västergötland, Sweden

    Per Ahlberg, Mats E. Eriksson, Lundberg, F. & Anders Lindskog, 2016, In : GFF. 138, 4, p. 490-501 12 p.

    Research output: Contribution to journalArticle

  16. Ediacaran–Cambrian phosphorites from the western margins of Gondwana and Baltica

    Álvaro, J. J., Shields-Zhou, G. A., Per Ahlberg, Jensen, S. & Palacios, T., 2016, In : Sedimentology. 63, 2, p. 350-377 28 p.

    Research output: Contribution to journalArticle

  17. 2015
  18. A blind trilobite with Baltic affinities from Cambrian Series 3 of the Iberian Chains, Spain, and its stratigraphical and palaeobiogeographical significance

    Chirivella Martorell, J. B., Linan, E., Per Ahlberg & Gozalo, R., 2015, In : GFF. 137, 3, p. 175-180

    Research output: Contribution to journalArticle

  19. Exotic trilobites from the uppermost Cambrian Series 3 and lower Furongian of Sweden

    Zylinska, A., Weidner, T., Ahlgren, J. & Per Ahlberg, 2015, In : Acta Geologica Polonica. 65, 1, p. 21-67

    Research output: Contribution to journalArticle

  20. Global climate, sea level cycles, and biotic events in the Cambrian Period

    Babcock, L., Peng, S-C., Brett, C. E., Zhu, M-Y., Per Ahlberg, Bevis, M. & Robison, R. A., 2015, In : Palaeoworld. 24, 1-2, p. 5-15

    Research output: Contribution to journalArticle

  21. In memoriam : Lennart Jeppsson - banbrytande paleontolog

    Per Ahlberg, Bergström, S. M., Mikael Calner & Mats Eriksson, 2015, In : Geologiskt Forum. 88, p. 25-27

    Research output: Contribution to journalArticle

  22. Intraspecific variation and taphonomic alteration in the Cambrian (Furongian) agnostoid Lotagnostus amerkanus: new information from China

    Peng, S., Babcock, L., Zhu, X., Per Ahlberg, Fredrik Terfelt & Dai, T., 2015, In : Bulletin of Geosciences. 90, 2, p. 281-306

    Research output: Contribution to journalArticle

  23. Obituary Lennart Jeppsson 1940-2015

    Bergström, S. M., Per Ahlberg, Mikael Calner, Mats Eriksson, Birger Schmitz & Fredrik Terfelt, 2015, In : The Palaeontological Association Newsletter. 89, p. 103-105

    Research output: Contribution to journalArticle

  24. Sedimentology of SPICE (Steptoean positive carbon isotope excursion): A high-resolution trace fossil and microfabric analysis of the middle to late Cambrian Alum Shale Formation, southern Sweden

    Egenhoff, S. O., Fishman, N. S., Per Ahlberg, Maletz, J., Jackson, A., Kolte, K., Lowers, H., Mackie, J., Newby, W. & Petrowsky, M., 2015, In : Geological Society of America. Special Papers. 515, p. 87–102 16 p.

    Research output: Contribution to journalArticle

  25. Sphenothallus from the Furongian (Cambrian) of Scandinavia

    Stewart, S. E., Clarkson, E. N. K., Ahlgren, J., Per Ahlberg & Schoenemann, B., 2015, In : GFF. 137, 1, p. 20-24

    Research output: Contribution to journalArticle

  26. The Cambrian explosion: Its timing and stratigraphic setting

    Clausen, S., Javier Alvaro, J., Devaere, L., Per Ahlberg & Babcock, L. E., 2015, In : Annales de Paléontologie. 101, 3, p. 153-160

    Research output: Contribution to journalDebate/Note/Editorial

  27. The ontogeny of Ellipsocephalus (Trilobita) and systematic position of Ellipsocephalidae

    Laibl, L., Fatka, O., Budil, P., Per Ahlberg, Szabad, M., Vokac, V. & Kozak, V., 2015, In : Alcheringa. 39, 4, p. 477-487

    Research output: Contribution to journalArticle

  28. 2014
  29. Evidence of global climatic and sea level cycles in the Cambrian

    Babcock, L., Peng, S., Brett, C. E., Zhu, M., Per Ahlberg & Bevis, M., 2014, IGCP 591 Field Workshop 2014, Kunming, China, 12-21 August 2014, Extended Summary. Zhan, R. & Huang, B. (eds.). Nanjing University Press, p. 9-11 3 p.

    Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

  30. Late Ordovician (Katian) spores in Sweden : oldest land plant remains from Baltica

    Salah Badawy, A., Mehlqvist, K., Vivi Vajda, Per Ahlberg & Mikael Calner, 2014, In : GFF. 136, 1, p. 16-21

    Research output: Contribution to journalArticle

  31. Palaeogeographical significance of upper lower Cambrian (provisional Cambrian Series 2) trilobites from Gansu Province, China

    Bergström, J., Zhou, Z., Per Ahlberg & Axheimer, N., 2014, In : Proceedings of the 4th IGCP 591 Annual Meeting. p. 17-17

    Research output: Contribution to journalPublished meeting abstract

  32. Proposed reassessment of the Cambrian GSSP

    Babcock, L., Peng, S., Zhu, M., Xiao, S. & Per Ahlberg, 2014, In : Journal of African Earth Sciences. 98, p. 3-10

    Research output: Contribution to journalArticle

  33. Silurian graptolite biostratigraphy of the Rostanga-1 drill core, Scania - a standard for southern Scandinavia

    Maletz, J., Per Ahlberg, Suyarkova, A. & Loydell, D. K., 2014, In : GFF. 136, 1, p. 175-178

    Research output: Contribution to journalArticle

  34. Upper lower Cambrian (provisional Cambrian Series 2) trilobites from northwestern Gansu Province, China

    Bergstrom, J., Zhiqiang, Z., Per Ahlberg & Axheimer, N., 2014, In : Estonian Journal of Earth Sciences. 63, 3, p. 123-143

    Research output: Contribution to journalArticle

  35. 2013
  36. A Bradoriid and Brachiopod Dominated Shelly Fauna from the Furongian (Cambrian) of Västergötland, Sweden

    Topper, T. P., Skovsted, C. B., Harper, D. A. T. & Per Ahlberg, 2013, In : Journal of Paleontology. 87, 1, p. 69-83

    Research output: Contribution to journalArticle

  37. A complete record of the 'Lower' Cambrian-Middle Ordovician succession of Öland, southern Sweden, based on the Tingskullen core

    Dahlqvist, P., Mikael Calner, Lehnert, O. & Per Ahlberg, 2013, In : [Publication information missing]. p. 74-76

    Research output: Contribution to journalPublished meeting abstract

  38. Global Cambrian trilobite palaeobiogeography assessed using parsimony analysis of endemicity

    Álvaro, J. J., Ahlberg, P., Babcock, L. E., Bordonaro, O. L., Choi, D. K., Cooper, R. A., Ergaliev, G. K., Gapp, I. W., Ghobadi Pour, M., Hughes, N. C., Jago, J. B., Korovnikov, I., Laurie, J. R., Lieberman, B. S., Paterson, J. R., Pegel, T. V., .Popov, L. E., Rushton, A. W. A., Sukhov, S. S., Tortello, M. F. & 2 othersZhou, Z. & Zylinska, A. Z., 2013, Early Palaeozoic Biogeography and Palaeogeography. Harper, D. A. T. & Servais, T. (eds.). The Geological Society London, Vol. Memoir 38. p. 273-296

    Research output: Chapter in Book/Report/Conference proceedingBook chapter

  39. Guzhangian (mid Cambrian) trilobites from siliceous concretions of the Valtorres Formation, Iberian Chains, NE Spain

    Javier Alvaro, J., Zamora, S., Vizcaino, D. & Per Ahlberg, 2013, In : Geological Magazine. 150, 1, p. 123-142

    Research output: Contribution to journalArticle

  40. In memoriam : Jan Bergström : paleozoolog, geolog och folkbildare

    Per Ahlberg & Bergström, S. M., 2013, Geologiskt Forum, 77, p. 24-27.

    Research output: Contribution to specialist publication or newspaperSpecialist publication article

  41. Jan Bergström 1938-2012

    Per Ahlberg & Bergström, S. M., 2013, Kungliga Fysiografiska Sällskapet i Lund Årsbok 2011-2012. Kungliga Fysiografiska Sällskapet i Lund, Vol. 2011-2012. p. 113-115

    Research output: Chapter in Book/Report/Conference proceedingBook chapter

  42. Obituary Jan Bergström 1938-2012

    Bergström, S. M. & Per Ahlberg, 2013, In : The Palaeontological Association Newsletter. 82, p. 60-62

    Research output: Contribution to journalArticle

  43. Palaeokarst formation in the early Palaeozoic of Baltoscandia : evidence for significant sea-level changes in a shallow epicontinental sea

    Lehnert, O., Mikael Calner, Per Ahlberg, Ebbestad, J. O., Harper, D. A. T. & Meinhold, G., 2013, In : [Publication information missing]. p. 169-171

    Research output: Contribution to journalPublished meeting abstract

  44. Palynology and sedimentology of the Upper Ordovician-lowermost Llandovery in the Röstånga-1 core, southern Sweden

    Badawy, A. S., Per Ahlberg, Mikael Calner, Mehlqvist, K. & Vivi Vajda, 2013, In : [Publication information missing]. p. 39-41

    Research output: Contribution to journalPublished meeting abstract

  45. Reappraisal of the brachiopod Acrotreta socialis von Seebach, 1865: clarifying 150 years of confusion

    Topper, T. P., Harper, D. A. T. & Per Ahlberg, 2013, In : GFF. 135, 2, p. 191-203

    Research output: Contribution to journalArticle

  46. Silurian graptolite biostratigraphy of the Röstånga-1 drill core, Scania : a standard for southern Scandinavia

    Maletz, J. & Per Ahlberg, 2013, In : [Publication information missing]. p. 198-200

    Research output: Contribution to journalPublished meeting abstract

  47. The Lower Palaeozoic of southern Sweden and the Oslo Region, Norway. Field Guide for the 3rd Annual Meeting of the IGCP project 591

    Mikael Calner (ed.), Per Ahlberg (ed.), Lehnert, O. (ed.) & Mikael Erlström (ed.), 2013, Sveriges Geologiska Undersökning. 96 p. (Sveriges geologiska undersökning Rapporter och Meddelanden; vol. 133)

    Research output: Book/ReportAnthology (editor)

  48. 2012
  49. Morphologic variation of Lotagnostus americanus from China and Russia

    Peng, S., Babcock, L. E. & Per Ahlberg, 2012, In : Journal of Guizhou University (Natural Sciences), Acta Scientiarum Naturalium Universitatis Guizhou. 29 (Supplement 1), p. 182-183

    Research output: Contribution to journalPublished meeting abstract

  50. Morphology, ontogeny and distribution of the Cambrian Series 2 ellipsocephalid trilobite Strenuaeva spinosa from Scandinavia

    Cederstrom, P., Per Ahlberg, Babcock, L., Ahlgren, J., Hoyberget, M. & Nilsson, C. H., 2012, In : GFF. 134, 3, p. 157-171

    Research output: Contribution to journalArticle

  51. 2011
  52. Complete record of Furongian polymerid trilobites and agnostoids of Scandinavia : a biostratigraphical scheme

    Terfelt, F., Per Ahlberg & Mats Eriksson, 2011, In : Lethaia. 44, 1, p. 8-14

    Research output: Contribution to journalArticle

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