scientific papers

Not all my papers are freely available in the internet. But I can send you a free download link of most of the papers by request (bk@tiefes-leben.de).

    submitted.–

    Landing, E. & Kröger, B. Cephalopod ancestry and ecology of the hyolith “Allatheca” degeeri s.l. in the Cambrian Evolutionary Radiation. – submitted August 2011, Palaeogeography, Palaeoclimatology, Palaeoecology.

    Kröger, B., Lefebvre, B. Palaeogeography and palaeoecology of early Floian (Lower Ordovician) cephalopods from the Upper Fezouata Formation, Anti-Atlas, Morocco. submitted July 2011, Fossil Record.

    in press.–

    -/-

    2011

  1. Landing, E., Westrop, S. R., Kröger, B. and English, A. 2011. Left behind – delayed extinction and a relict trilobite fauna in the Cambrian–Ordovician boundary succession (east Laurentian platform, New York). Geological Magazine, 148: 529-557. [link]
  2. Slotta, F., Korn, D., Klug, C., Kröger, B. & Keupp, H. 2011. Sublethal shell injuries in Late Devonian ammonoids (Cephalopoda) from Kattensiepen (Rhenish Mountains). – Neues Jahrbuch für Geologie und Paläontologie, 261(3): 321-336.
  3. Landing, E., Adrain, J. M., Westrop, S. R. & Kröger, B. 2011. Tribes Hill–Rochdale Formations in east Laurentia:proxies for Early Ordovician (Tremadocian) eustasy on a tropical passive margin (New York and west Vermont). – Geological Magazine, 149, p. 93-123.[link]
  4. Kröger, B. 2011. Size matters. – Analysis of repaired shell breakages in endocerid cephalopods. – Fossil Record 14: 109-118. [link]
  5. Kröger, B., Vinther, J., Fuchs, D. 2011. Cephalopod origin and evolution: A congruent picture emerging from fossils, development and molecules. – BioEssays, DOI: 10.1002/bies.201100001 [link]
  6. Kröger, B. & Evans, D. H. 2011. Paleoecological analysis of the late Tremadocian–early Floian (Early Ordovician) cephalopod fauna of the Montagne Noire, France. – Fossil Record, 14: 35–53.[link]
  7. Kröger, B., Ebbestad, J. O.R., Högström, A. E. S., & Frisk, Å., M. 2011. Mass concentration of Hirnantian cephalopods from the Siljan District, Sweden; taxonomy, palaeoecology and palaeobiogeographic relationship. – Fossil Record, 14: 1–34.[link]

    8. 2010

  8. Klug, C., Kröger, B., Kiessling, W., Mullins, G., Servais, T., Frýda, J., Korn, D., Turner, S. 2010. The Devonian Nekton Revolution. – Lethaia 43:465-477.
  9. Servais, T., Owen, A.W., Harper, D.A.T., Kröger, B., Munnecke, A. 2010. The Great Ordovician Biodiversification Event (GOBE): the palaeoecological dimension - Palaeogeography, Palaeoclimatology, Palaeoecology, 294: 99-119. [link]
  10. Kröger, B. & Landing, E. 2010.  Early Ordovician community evolution with eustatic change through the middle Beekmantown Group, northeast Laurentia. – Palaeogeography, Palaeoclimatology, Palaeoecology, 294, 174–188. [link]
  11. Klug, C., Kröger, B., & De Baets, K. 2010. An Early Devonian nonagonal orthoconic from Morocco. 141-146, in: Tanabe, K., Shigeta, Y, Sasaki, T. and Hirano, H. (eds), Cephalopods – Present and Past.Tokai University Press, Tokyo
  12. Kiessling, W., Nützel, A., Korn, D., Kröger, B., Müller, J. 2010. German Paleontology in the early 21st Century. - Palaeontologica Electronica. 13.1.2E [link]

    13. 2009

  13. Kröger, B., Servais, T., Zhang Yunbai. The Origin and Initial Rise of Pelagic Cephalopods in the Ordovician. PLoS ONE 4(9): e7262. doi:10.1371/journal.pone.0007262.[link]
  14. Kröger, B. & Landing, E. Cephalopods and Paleoenvironments of the Fort Cassin Formation (Upper Lower Ordovician), eastern New York and adjacent Vermont. – Journal of Paleontology 83:664–693. [link]
  15. Kröger, B., Zhang Yunbai, Isakar, M. Discosorids and Oncocerids (Cephalopoda) of the Middle Ordovician Kunda and Aseri Regional Stages of Baltoscandia and the early evolution of these groups. – Geobios, 42: 273-292. [link]
  16. Kröger, B. & Zhang Yunbai, 2009. Pulsed cephalopod diversification during the Ordovician. – Palaeogeography, Palaeoclimatology, Palaeoecology 273: 174–183. [link]
  17. Nielsen, S., Bandel, K. & Kröger, B., 2009. Siphuncular tube and shell ultrastructure of Aturia cubaensis (Cephalopoda, Nautiloidea) from the Cenozoic of Chile with implications for marine climates of the southeastern pacific. – Geobios 42:73–88. >[link]
  18. Landing, E. & Kröger, B. 2009. The oldest cephalopods from East Laurentia. – Journal of Paleontology, 83: 89-93.[link]

    19. 2008

  19. Kröger, B. 2008. A new genus of middleTremadocian orthoceratoids and the Early Ordovician origin of orthoceratoid cephalopods.– Acta Palaeontologica Polonica, 53: 745-753.[link] [free pdf]
  20. Kröger, B. 2008. Nautiloids before and during the ammonoid origin in a Siluro–Devonian section of the Tafilalt (Morocco). – Special Papers in Palaeontology 79, 110pp.[free pdf/proof version]
  21. Klug, C., Kröger, B., Rücklin, M., Korn, D., Schemm-Gregory, M. & Mapes, R. H. 2008. Ecological change during the early Emsian (Devonian) in the Tafilalt (Morocco), the origin of the Ammonoidea, and the firs African pyrgocystid edrioasteroids, machaerids and phyllocarids. – Palaeontographica, A 283 :. 94 pp., Stuttgart.
  22. Kröger, B. & Landing, E. 2008. Onset of the Ordovician cephalopod radiation – evidence from the Rochdale Formation (middle Lower Ordoviian, Stairsian) in eastern New York. – Geological Magazine, 145 : 490-520.[link]

    23. 2007

  23. Landing, E, Franzi, D. A., Hagadorn J. W., Westrop, S. R., Kröger, B. & Dawson, J. 2007. Cambrian of East Laurentia: field workshop in eastern New York and western Vermont. pp. 16–34. In: Landing, E. (ed.), Ediacaran–Ordovician of East Laurentia. New York State Museum Bulletin, 510, 93 pp.
  24. Kröger, B. 2007. On the origin of bactritoids. – Paläontologische Zeitschrift 81: 316–327.[link]
  25. Kröger, B. Concentrations of juvenile and small adult cephalopods in the Hirnantian cherts (Late Ordovician) of Porkuni, Estonia. – Acta Palaeontologica Polonica 52: 591–608.[link] [free pdf]
  26. Kröger, B., Beresi, M. S. & Landing, E. Early orthoceratoid cephalopods of the Argentine Precordillera (Early-Middle Ordovician). –Journal of Paleontology 81 (6): 1266–1283.[link]
  27. Kröger, B. & Landing, E. The earliest Ordovician cephalopods of eastern Laurentia – Ellesmerocerids of the Tribes Hill Formation, eastern New York. – Journal of Paleontology 81 (5): 841–857.[link]
  28. Kröger, B. & Mapes, R. H. Carboniferous actinoceratids (Nautiloidea, Cephalopoda) – a new perspective. – Journal of Paleontology 81 (4): 714 –724.[link]
  29. Kröger, B. 2007. Some less known features of the ancient cephalopod order Ellesmerocerida. – Palaeontology 50 (3): 565–572.

    30. 2006

  30. Kröger, B. 2006. Early growth stages of Arenigian Baltoscandic Orthocerida Mollusca, Cephalopoda. – Lethaia 39: 129–139.
  31. Kröger, B. & Isakar, M. 2006. Revision of annulated orthoceridan cephalopods of the Baltoscandic Ordovician. – Fossil Record 9: 139-165.
  32. Suttner, T.J. & Kröger, B. 2006. Late Ordovician to Early Silurian Gondwanan cephalopods of the Pin Formation (Spiti, northern India). – Neues Jahrbuch Geologie Paläontologie, Monatshefte 2006 (10): 595-612.

    33. 2005

  33. Kröger, B. 2005. Adaptive evolution in Paleozoic coiled Cephalopods. –Paleobiology 31: 253–268.
  34. Kröger, B., Klug, C. & Mapes, R. H. 2005. Soft-tissue attachment in non-ammonoid cephalopods of Emsian to Eifelian age Devonian. – Acta Palaeontologica Polonica 50: 329-342.
  35. Kröger, B. & Mapes, R. H. 2005. Revision of some common Carboniferous genera of North American orthoceratid Nautiloids. – Journal of Paleontology 79: 1002-1111.[link]
  36. Kröger, B. & Mutvei, H. 2005. Nautiloids with multiple paired muscle scars from Early - Middle Ordovician of Baltoscandia. – Palaeontology 48: 781-791.

    37. 2004

  37. Kröger, B. 2004. Large shell injuries in Middle Ordovician Orthocerida (Nautiloidea, Cephalopoda). – GFF 126: 311-316.
  38. Kröger, B. 2004. Revision of the Middle Ordovician orthocerataceaen nautiloids from Baltoscandia. – Acta Palaeontologica Polonica 49: 57-74.
  39. Kröger, B. & Keupp, H. 2004. A paradox survival – report of a repaired syn vivo perforation in a nautiloid phragmocone? – Lethaia 37: 439-444.
  40. Kröger, B. & Mapes, R. H. 2004. Lower carboniferous Chesterian embryonic orthoceratid nautiloids. – Journal of Paleontology 78: 560-573..[link]
  41. Kröger, B. & Mapes R. H. 2004. Soft-body attachment structures on Bactrites arkonensis Whiteaves, 1898 (Bactritida, Cephalopoda) from the Middle Devonian of Ontario, Canada. – Mitteilungen des Geologisch-Paläontologischen Institut Universität Hamburg 88: 115-124

    42. < 2004

  42. Kröger, B. 2003 The size of siphuncle in cephalopod evolution. – Senckenbergiana lethaea 83: 39-52.
  43. Kröger, B. 2002. Antipredatory traits of the ammonoid shell. – Indications from Jurassic ammonoids with sublethal injuries. – Paläontologische Zeitschrift 76: 223-234
  44. Kröger, B. 2002. On the ability of withdrawing of some Jurassic ammonoids. – Abhandlungen der Geologischen Bundesanstalt 57: 199-204.
  45. Kröger, B. 2002. On the efficiency of the buoyancy apparatus in ammonoids. – Evidences from sublethal shell injuries. – Lethaia 35: 31-40.
  46. Kröger, B. 2001. Comments on EBEL´s benthic-crawler hypothesis for ammonoids and extinct nautiloids. – Paläontologischen Zeitschrift 75 3, 123-125.
  47. Wiese, F. & Kröger, B. 1998. Evidence for a shallowing event in the Upper Turonian (Cretaceous) Mytiloides scupini Zone of northern Germany. – Acta Geologica Polonica 48: 265-284.