Claus Nielsen

Claus Nielsen

Professor emeritus, Professor, emeritus

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    ORCID: 0000-0001-6898-7655

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    1. Published

      The magnitude of global marine species diversity

      Appeltans, W., Ahyong, S. T., Anderson, G., Angel, M. V., Artois, T., Bailly, N., Bamber, R., Barber, A., Bartsch, I., Berta, A., Blazewicz-Paszkowycz, M., Bock, P., Boxshall, G., Boyko, C. B., Brandao, S. N., Bray, R. A., Bruce, N. L., Cairns, S. D., Chan, T-Y., Cheng, L. & 101 others, Collins, A. G., Cribb, T., Curini-Galletti, M., Dahdouh-Guebas, F., Davie, P. J. F., Dawson, M. N., De Clerck, O., Decock, W., De Grave, S., de Voogd, N. J., Domning, D. P., Emig, C. C., Erseus, C., Eschmeyer, W., Fauchald, K., Fautin, D. G., Feist, S. W., Fransen, C. H. J. M., Furuya, H., Garcia-Alvarez, O., Gerken, S., Gibson, D., Gittenberger, A., Gofas, S., Gomez-Daglio, L., Gordon, D. P., Guiry, M. D., Hernandez, F., Hoeksema, B. W., Hopcroft, R. R., Jaume, D., Kirk, P., Koedam, N., Koenemann, S., Kolb, J. B., Kristensen, Reinhardt Møbjerg, Kroh, A., Lambert, G., Lazarus, D. B., Lemaitre, R., Longshaw, M., Lowry, J., Macpherson, E., Madin, L. P., Mah, C., Mapstone, G., McLaughlin, P. A., Mees, J., Meland, K., Messing, C. G., Mills, C. E., Molodtsova, T. N., Mooi, R., Neuhaus, B., Ng, P. K. L., Nielsen, Claus, Norenburg, J., Opresko, D. M., Osawa, M., Paulay, G., Perrin, W., Pilger, J. F., Poore, G. C. B., Pugh, P., Read, G. B., Reimer, J. D., Rius, M., Rocha, R. M., Saiz-Salinas, J. I., Scarabino, V., Schierwater, B., Schmidt-Rhaesa, A., Schnabel, K. E., Schotte, M., Schuchert, P., Schwabe, E., Segers, H., Self-Sullivan, C., Shenkar, N., Siegel, V., Sterrer, W., Stohr, S., Swalla, B., Tasker, M. L., Thuesen, E. V., Timm, T., Todaro, M. A., Turon, X., Tyler, S., Uetz, P., van der Land, J., Vanhoorne, B., van Ofwegen, L. P., van Soest, R. W. M., Vanaverbeke, J., Walker-Smith, G., Walter, T. C., Warren, A., Williams, G. C., Wilson, S. P. & Costello, M. J., 4 Dec 2012, In: Current Biology. 22, 23, p. 2189-2202 14 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    2. Published

      Xenortubella is a deuterostome that eats molluscs

      Bourlat, S. J., Nielsen, Claus, Lockyer, A. E., Littlewood, D. T. & Telford, M. J., 2003, In: Nature. 424, p. 925-928

      Research output: Contribution to journal › Journal article › Research › peer-review

    3. Published

      Summary of the Thai-Danish biodiversity project on the Andaman Sea continental shelf and slope (1996-2000)

      Bussaravit, S., Tendal, O. S., Nielsen, Claus & Rasmussen, A. R., 2008, In: Phuket Marine Biological Center. Special Publications. 31, p. 75-81 7 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    4. Published

      Summary of the Thai-Danish biodiversity project on the Andaman Sea continental shelf and slope (1996-2000)

      Bussarawit, S., Tendal, O. S., Nielsen, Claus & Rasmussen, A. R., 2008, In: Phuket Marine Biological Center. Special Publications. p. 75-81 7 p.

      Research output: Contribution to journal › Conference article › Research

    5. Published

      The rearticulation of annelids

      Eibye-Jacobsen, Danny & Nielsen, Claus, 1996, In: Zoologica Scripta. 25, p. 275-282

      Research output: Contribution to journal › Journal article › Research › peer-review

    6. Published

      Brachiopoda: Fossils and Recent

      Harper, D. A. T. (ed.), Long, S. L. (ed.) & Nielsen, Claus (ed.), 2008, Copenhagen: Wiley-Blackwell. 331 p. (Fossils and Strata, Vol. 54).

      Research output: Book/Report › Anthology › Research › peer-review

    7. Published

      The nudibranch names mentioned as n.sp. in Bergh (1861) are almost all nomina nuda (Gastropoda: Heterobranchia: Nudibranchia)

      Jensen, Kathe & Nielsen, Claus, 2014, In: Zootaxa. 3753, 2, p. 146-154 9 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    8. Published

      On three species and two new genera (Montacutella and Brachiomya of geleommatoid bivalves from the irregularsea urchin Brissus latecarinatus with emphasis on their reproduction

      Jespersen, Å., Lützen, J. & Nielsen, Claus, 2004, In: Zoologischer Anzeiger. 243, p. 3-19

      Research output: Contribution to journal › Journal article › Research › peer-review

    9. Published

      The phylogenetic position of ctenophores and the origin(s) of nervous systems

      Jékely, G., Paps, J. & Nielsen, Claus, 2015, In: EvoDevo. 6, 8 p., 1.

      Research output: Contribution to journal › Journal article › Research › peer-review

    10. Published

      Lorentz Spengler's descriptions of freshwater mussels (Mollusca: Unionacea): translation and notes

      Knudsen, J., Jensen, K. R., Nielsen, Claus & Johnson, R. I., 2003, In: Steenstrupia. 27, p. 263-279

      Research output: Contribution to journal › Journal article › Research › peer-review

    11. Published

      Ultrastructure of spermiogenesis in Cristatella mucedo Cuvier (Bryozoa: Phylactolaemata: Cristatellidae)

      Lützen, J., Jespersen, Å. & Nielsen, Claus, 2009, In: Zoomorphology. 128, p. 275-283

      Research output: Contribution to journal › Journal article › Research › peer-review

    12. Published

      Galeommatid bivalves from Phuket, Thailand

      Lützen, J. & Nielsen, Claus, 2005, In: Zoological Journal of the Linnean Society. 144, 3, p. 261-308

      Research output: Contribution to journal › Journal article › Research › peer-review

    13. Published

      The tentacle cilia of Aglantha digitale (Hydrozoa, Trachylina) and their control

      Mackie, G. O., Nielsen, Claus & Singla, C. L., 1989, In: Acta Zoologica. 70, p. 132-141

      Research output: Contribution to journal › Journal article › Research › peer-review

    14. Published

      Oodinium jordani n.sp., a dinoflagellate (Dinoflagellata: Oodiniidae) ectoparasitic on Sagitta elegans (Chaetognatha)

      McLean, N. & Nielsen, Claus, 1989, In: Diseases of Aquatic Organisms. 7, p. 61-66

      Research output: Contribution to journal › Journal article › Research › peer-review

    15. Published

      The phylogenetic position of Entoprocta, Ectoprocta, Phoronida and Brachiopoda

      Nielsen, Claus, 2002, In: Integrative and Comparative Biology. 42, p. 685-691

      Research output: Contribution to journal › Journal article › Research › peer-review

    16. Published

      The larvae of Loxosoma pectinaricola and Loxosomella elegans (Entoprocta)

      Nielsen, Claus, 1967, In: Ophelia. 4, 2, p. 203-206

      Research output: Contribution to journal › Journal article › Research › peer-review

    17. Published

      Havsvampe eller ribbegopler: Hvad kom først?

      Nielsen, Claus, 2020, https://videnskab.dk/forskerzonen.

      Research output: Other contribution › Net publication - Internet publication › Communication

    18. Published

      Tentacle structure and filter-feeding in Crisia eburnea and other cyclostomatous bryozoans, with a review of upstream-collecting mechanisms

      Nielsen, Claus & Riisgård, H. U., 1998, In: Marine Ecology - Progress Series. 168, p. 163-186

      Research output: Contribution to journal › Journal article › Research › peer-review

    19. Published

      Structure and function of metazoan ciliary bands and their phylogenetic significance

      Nielsen, Claus, 1987, In: Acta Zoologica. 68, p. 205-262

      Research output: Contribution to journal › Journal article › Research › peer-review

    20. Published

      Phoronis Wright, 1856 (Phoronida) and P. muelleri Selys Longchamps, 1903: proposed conservation of both names

      Nielsen, Claus, 2013, In: Bulletin of Zoological Nomenclature. 70, 3, p. 157-159 3 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    21. Published

      Trochopora larvae: Cell-lineages, Ciliary bands, and body regions. 1. Annelida and Mollusca

      Nielsen, Claus, 2004, In: Journal of Experimental Zoology. Part B: Molecular and Developmental Evolution. 302B, p. 35-68

      Research output: Contribution to journal › Journal article › Research › peer-review

    22. Published

      Entoprocta

      Nielsen, Claus, 2002, Encyclopedia of Life Sciences. O'Daly, A. (ed.). London: Macmillan Reference USA, Vol. 6. p. 345-346

      Research output: Chapter in Book/Report/Conference proceeding › Encyclopedia chapter › Research

    23. Published

      Some aspects of spiralian development

      Nielsen, Claus, 2010, In: Acta Zoologica. 91, 1, p. 20-28 9 p.

      Research output: Contribution to journal › Conference article › Research › peer-review

    24. Published

      Cladistic analyses of the Animal Kingdom

      Nielsen, Claus, Scharff, Nikolaj & Eibye-Jacobsen, Danny, 1996, In: Biological Journal of the Linnean Society. 57, p. 385-410

      Research output: Contribution to journal › Journal article › Research › peer-review

    25. Published

      Bryozoa Entoprocta

      Nielsen, Claus, 1990, Reproductive Biology of Invertebrates. Adiyodi, K. G. & Adiyodi, R. G. (eds.). New Delhi: Oxford and IBH Publishing Co., Vol. IV, B. p. 309-314

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

    26. Published

      An ilustrated checklist of bivalves from PMBC beach with a reef flat at Phuket, Thailand

      Nielsen, Claus, 1976, In: Phuket Marine Biological Center. Research Bulletin. 9, p. 1-25

      Research output: Contribution to journal › Journal article › Research › peer-review

    27. Published

      On morphology and reproduction of "Hippodiplosia" insculpta and Fenestrulina malusii (Bryozoa Cheilostomata)

      Nielsen, Claus, 1981, In: Ophelia: international journal of marine biology. 20, p. 91-125

      Research output: Contribution to journal › Journal article › Research › peer-review

    28. Published

      Morphological novelties detonated the Ediacaran-Cambrian "explosion"

      Nielsen, Claus & Parker, A., 2010, In: Evolution & Development. 12, 4, p. 345-346 2 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    29. Published

      Animal evolution: interrelationships of the living phyla

      Nielsen, Claus, 2012, 3. ed. Oxford: Oxford University Press. 402 p.

      Research output: Book/Report › Book › Research › peer-review

    30. Published

      Origin of the trochophora larva

      Nielsen, Claus, 2018, In: Royal Society Open Science. 5, 7, 7 p., 180042.

      Research output: Contribution to journal › Journal article › Research › peer-review

    31. Published

      Book review: The Helgoland manual of animal development

      Nielsen, Claus, 2014, In: Marine Biology Research. 10, 7, p. 744 1 p.

      Research output: Contribution to journal › Literature review › Research › peer-review

    32. Published

      Larval nervous systems: true larval and precocious adult

      Nielsen, Claus, 2015, In: Journal of Experimental Biology. 218, p. 629-636 8 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    33. Published

      Animal Evolution. Interrelationships of the Living Phyla. Second Edition

      Nielsen, Claus, 2001, 2 ed. England: Oxford University Press. 563 p.

      Research output: Book/Report › Book › Research › peer-review

    34. Published

      Four new species of Pogonophora from the Atlantic Ocean off Southern Florida

      Nielsen, Claus, 1965, In: Bulletin of Marine Science. 15, 4, p. 964-986

      Research output: Contribution to journal › Journal article › Research › peer-review

    35. Published

      The "new phylogeny". What is new about it?

      Nielsen, Claus, 2010, In: Palaeodiversity. 3, Supplement, p. 149-150 2 p.

      Research output: Contribution to journal › Conference abstract in journal › Research › peer-review

    36. Published

      Brachiopoda

      Nielsen, Claus, 1988, Introduction to the Study of Miofauna. Higgins, R. P. & Thiel, H. (eds.). Smithsonian Institution Press, p. 445-446

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

    37. Published

      To sære 'orme'

      Nielsen, Claus, 2004, In: Dyr i Natur og Museum. 1, p. 27-29

      Research output: Contribution to journal › Journal article › Communication

    38. Published

      Notes on a Zoanthina larva (Cnidaria) from Phuket, Thailand

      Nielsen, Claus, 1984, In: Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening. 145, p. 53-60

      Research output: Contribution to journal › Journal article › Research › peer-review

    39. Published

      Phylum Entoprocta: The Entoprocts (revised)

      Nielsen, Claus, 2023, Invertebrates. Brusca, R. C., Giribet, G. & Moore, W. (eds.). 4 ed. New York: Sinauer Associates, p. 312-317 6 p.

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Education › peer-review

    40. Published

      Animal Evolution: Interrelationships of the Living Phyla

      Nielsen, Claus, 1995, Oxford, England: Oxford University Press. 467 p.

      Research output: Book/Report › Book › Research › peer-review

    41. Published

      The authorship of chordate taxa

      Nielsen, Claus, Jun 2012, In: Zoologica Scripta. 41, 4, p. 435-436 2 p.

      Research output: Contribution to journal › Comment/debate › Research › peer-review

    42. Published

      Development of the enteropneust Ptychodera flava: ciliary bands and nervous system

      Nielsen, Claus & Hay-Schmidt, Anders, 2007, In: Journal of Morphology. 268, p. 551-570

      Research output: Contribution to journal › Journal article › Research › peer-review

    43. Published

      Entoprocta

      Nielsen, Claus, 2020, Guide to the Identification of Marine Meiofauna. Schmidt-Rhaesa, A. (ed.). München: Verlag Dr. Friedrich Pfeil, Munchen, p. 285-287

      Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

    44. Published

      Hydrodynamics in early animal evolution

      Nielsen, Claus, 2023, In: Biological Reviews. 98, 1, p. 376-385 10 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    45. Published

      Haeckelia (=Euchlora) and Hydroctena and the phylogenetic interrelationships of Cnidaria and Ctenophora

      Nielsen, Claus, 1987, In: Journal of Zoological Systematics and Evolutionary Research. 25, p. 9-12

      Research output: Contribution to journal › Journal article › Research › peer-review

    46. Published

      Patterns of gene expression: homology or homocracy?

      Nielsen, Claus & Martinez, P., 2003, In: Development, Genes and Evolution. 213, p. 149-154

      Research output: Contribution to journal › Journal article › Research › peer-review

    47. Published

      Entoprocts

      Nielsen, Claus, 1989, Leiden: Brill. 131 p. (Synopses of the British Fauna, New Series, Vol. 41).

      Research output: Book/Report › Book › Research › peer-review

    48. Published

      Evolution of deuterostomy - and the origin of chordates

      Nielsen, Claus, 2017, In: Biological Reviews. 92, 1, p. 316-325 10 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    49. Published

      Who came first, sponges or comb jellies?

      Nielsen, Claus, 2020, https://sciencenordic.com/researchers-zone.

      Research output: Other contribution › Net publication - Internet publication › Communication

    50. Published

      Deep metazoan phylogeny: the backbone of the tree of life (new insights from analyses of molecules, morphology, and theory of data analysis).—Edited by J. Wolfgang Wägele and Thomas Bartholomaeus

      Nielsen, Claus, 2015, In: Systematic Biology. 64, 5, p. 892 1 p.

      Research output: Contribution to journal › Literature review › Research

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