Per Ahlberg

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  1. 2020
  2. Ordovician graptolite biostratigraphy of the Röstånga-2 drill core (Scania, southern Sweden)

    Maletz, J., Per Ahlberg & Lundberg, F., 2020 May 18, In : GFF.

    Research output: Contribution to journalArticle

  3. The Furongian (upper Cambrian) Alum Shale of Scandinavia: revision of zonation

    Nielsen, A. T., Høyberget, M. & Per Ahlberg, 2020 Mar 12, In : Lethaia.

    Research output: Contribution to journalArticle

  4. Pyritization history in the late Cambrian Alum Shale, Scania, Sweden: Evidence for ongoing diagenetic processes

    Fishman, N. S., Egenhoff, S. O., Lowers, H. A., Boehlke, A. R. & Per Ahlberg, 2020 Feb 3, Mudstone diagenesis: Research perspectives for shale hydrocarbon reservoirs, seals, and source rocks. Camp, W., Milliken, K., Taylor, K., Fishman, N., Hackley, P. & Macquaker, J. (eds.). The American Association of Petroleum Geologists, Vol. Memoir 120. p. 83-102 (aapg memoir; vol. 120).

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

  5. Darriwili (Kesk­ordoviitsiumi) δ13Corg kemostratigraafia koos graptoliitide biostratigraafiaga klassikalisel röstånga alal skåne maakonna loodeosas lõuna­rootsis

    Bergström, S. M., Per Ahlberg, Maletz, J., Lundberg, F. & Joachimski, M. M., 2020, In : Estonian Journal of Earth Sciences. 69, 3, p. 121-133 13 p.

    Research output: Contribution to journalArticle

  6. Minnesord Sven Stridsberg

    Per Ahlberg, Mats Eriksson, Kent Larsson & Johan Lindgren, 2020, 1 p. Geologiska Föreningen.

    Research output: Other contributionMiscellaneous

  7. 2019
  8. Fossil insect eyes shed light on trilobite optics and the arthropod pigment screen

    Johan Lindgren, Dan Eric Nilsson, Sjövall, P., Martin Jarenmark, Ito, S., Wakamatsu, K., Kear, B. P., Schultz, B. P., Sylvestersen, R. L., Madsen, H., LaFountain, J. R., Carl Alwmark, Mats E. Eriksson, Stephen A. Hall, Paula Lindgren, Rodríguez-Meizoso, I. & Per Ahlberg, 2019 Jan 1, In : Nature. 573, p. 122-125

    Research output: Contribution to journalLetter

  9. 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

  10. 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

  11. 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

  12. The Miaolingian, a new name for the ‘Middle’ Cambrian (Cambrian Series 3): identification of lower and upper boundaries in Baltoscandia

    Nielsen, A. T. & Per Ahlberg, 2019, In : GFF. 141, 2, p. 162-173 12 p.

    Research output: Contribution to journalReview article

  13. 2018
  14. 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

  15. 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

  16. 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

  17. 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

  18. 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

  19. 2017
  20. 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

  21. 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

  22. 2016
  23. 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

  24. 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

  25. 2015
  26. 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

  27. 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

  28. 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

  29. 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

  30. 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

  31. 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

  32. 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

  33. 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

  34. 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

  35. 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

  36. 2014
  37. 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

  38. 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

  39. 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

  40. 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

  41. 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

  42. 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

  43. 2013
  44. 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

  45. 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

  46. 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 others, Zhou, Z. & Zylinska, A. Z., 2013, Early Palaeozoic Biogeography and Palaeogeography. Harper, D. A. T. & Servais, T. (eds.). Geological Society of London, Vol. Memoir 38. p. 273-296

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

  47. 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

  48. 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

  49. 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

  50. 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

  51. 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

  52. 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

  53. 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

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