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

      After all: Xenoturbella is an acoelomorph!

      Nielsen, Claus, 2010, In: Evolution & Development. 12, 3, p. 241-243 3 p.

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

    17. Published

      Animal phylogeny in the light of the trochaea theory

      Nielsen, Claus, 1985, In: Biological Journal of the Linnean Society. 25, p. 243-299

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

    18. Published

      Trochophora larvae: Cell-lineages, ciliary bands and body regions. 2. Other groups and general discussion

      Nielsen, Claus, 2005, In: Journal of Experimental Zoology. Part B: Molecular and Developmental Evolution. 304B, p. 401-447

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

    19. Published

      Loxosomella decorata n. sp., a new solitary entoproct from San Juan Island, WA, USA

      Nielsen, Claus, 2017, In: Zootaxa. 4238, 4, p. 594-596 3 p.

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

    20. Published

      Biologisk klassifikation

      Nielsen, Claus, 1995, Danmarks Nationalleksikon. Lund, J. (ed.). Gyldendal, Vol. 3. p. 29-30

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

    21. Published

      Early animal evolution: a morphologist's view

      Nielsen, Claus, 2019, In: Royal Society Open Science. 6, 7, p. 1-10 10 p., 190638.

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

    22. Published

      Bryozoa (Ectoprocta: 'Moss' Animals)

      Nielsen, Claus, 2013, eLS. Wiley

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

    23. Published

      Entoprocta

      Nielsen, Claus, 1988, Introduction to the Study of Meiofauna. Higgins, R. P. & Thiel, H. (eds.). Smithsonian Institution Press, p. 444

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

    24. Published

      On the occurrence of the prosobranchs Littorina neritoides , L. mariae and L. obtusata in Denmark

      Nielsen, Claus, 1980, In: Journal of Molluscan Studies. 46, p. 312-316

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

    25. Published

      Amended proposal for validating Pectinaria Lamarck, 1818 (Polychaeta), P. belgica (Pallas, 1766) and P. koreni  (Malmgren, 1866) under the plenary powers Z.N.(S.) 2202

      Nielsen, Claus & Kirkegaard, J. B., 1978, In: Bulletin of Zoological Nomenclature. 35, p. 25-29

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

    26. Published

      Lamarck-Darwin

      Nielsen, Claus, 2009, In: Weekendavisen. Idéer, p. 13

      Research output: Contribution to journal › Contribution to newspaper - Newspaper article › Communication

    27. Published

      Dyr

      Nielsen, Claus, 1996, Danmarks Nationalleksikon. Lund, J. (ed.). København: Gyldendal, Vol. 5. p. 311-312

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

    28. Published

      Life cycle evolution: was the eumetazoan ancestor a holoplanktonic, planktotrophic gastraea?

      Nielsen, Claus, 2013, In: BMC Evolutionary Biology. 13, 18 p., 171.

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

    29. Published

      A review of the taxa of solitary entoprocts (Loxosomatidae)

      Nielsen, Claus, 2010, In: Zootaxa. 2395, p. 45-56 12 p.

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

    30. Published

      [Ciliated larvae: A reply to O.M. Ivanova Kazas] (In Russian, English summary)

      Nielsen, Claus, 1988, In: Zoologicheskii Zhurnal. 67, p. 776-777

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

    31. Published

      Fauna associated with the coral Porites from Phuket, Thailand (Part 1): Bivalves with description of a new species

      Nielsen, Claus, 1986, In: Phuket Marine Biological Center. Research Bulletin. 42, p. 1-24

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

    32. Published

      Yngelpleje hos mosdyr

      Nielsen, Claus, 1984, In: Dyr i Natur og Museum. p. 16-18

      Research output: Contribution to journal › Journal article › Communication

    33. Published

      Ciliary filter-feeding structures in adult and larval gymnolaemate bryozoans

      Nielsen, Claus, 2002, In: Invertebrate Biology. 121, p. 255-261

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

    34. Published

      How did indirect development with planktotrophic larvae evolve?

      Nielsen, Claus, 2009, In: Biological Bulletin. 216, p. 203-215

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

    35. Published

      Bryozoa Ectoprocta

      Nielsen, Claus, 1990, Reproductive Biology of Invertebrates. Adiyodi, K. G. & Adiyodi, R. G. (eds.). New Delhi: Meyer, Vol. IV,B. p. 185-200

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

    36. Published

      Three new species of Loxosoma (Entoprocta) from Phuket, Thailand, with a review of the genus

      Nielsen, Claus, 1996, In: Zoologica Scripta. 25, p. 61-76

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

    37. Published

      Phylum Entoprocta: The entoprocts

      Nielsen, Claus, 2016, Invertebrates. Brusca, R. C., Moore, W. & Schuster, S. M. (eds.). 3 ed. Sunderland, MA: Sinauer Associates, p. 603-609 7 p.

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

    38. Published

      Phylogeny and molecular data

      Nielsen, Claus, 1989, In: Science. 243, p. 548

      Research output: Contribution to journal › Comment/debate › Research

    39. Published

      Phylum Entoprocta

      Nielsen, Claus, 2002, Atlas of Marine Invertebrate Larvae. Young, C. M. (ed.). London: Academic Press, p. 397-409

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

    40. Published

      Larval and adult brains

      Nielsen, Claus, 2005, In: Evolution & Development. 7, p. 483-489

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

    41. Published

      Proposing a solution to the Articulata-Ecdysozoa controversy

      Nielsen, Claus, 2003, In: Zoologica Scripta. 32, p. 475-482

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

    42. Published

      Genesis og Gould

      Nielsen, Claus, 2005, In: Weekendavisen. p. 6

      Research output: Contribution to journal › Contribution to newspaper - Feature article › Communication

    43. Published

      The development of the brachiopod Crania (Neocrania) anomala (O. F. Müller) and its phylogenetic significance.

      Nielsen, Claus, 1991, In: Acta Zoologica (Stockholm). 72, p. 7-28

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

    44. Published

      Evolution of the bilaterian mouth and anus

      Nielsen, Claus, Brunet, T. & Arendt, D., 2018, In: Nature Ecology & Evolution. 2, p. 1358-1376 19 p.

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

    45. Published

      Larval and adult characters in animal phylogeny

      Nielsen, Claus, 1994, In: Integrative and Comparative Biology. 34, p. 492-501

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

    46. Published

      Phylum Bryozoa: The moss animals

      Nielsen, Claus, 2016, Invertebrates. Brusca, R. C., Moore, W. & Schuster, S. M. (eds.). 3 ed. Sunderland, MA: Sinauer Associates, p. 644-657 14 p.

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

    47. Published

      Ontogeny of the spiralian brain

      Nielsen, Claus, 2008, Evolving Pathways: Key Themes in Evolutionary Developmental Biology. Minelli, A. & Fusco, G. (eds.). Cambridge: Cambridge University Press, p. 399-416

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

    48. Published

      Book review: W. Westheide and R. Rieger (eds): Spezielle Zoologie, Teil 1: Einzeller uind Wirbellose Tiere, 2nd. edition. Spektrum/Elsevier, München

      Nielsen, Claus, 2008, In: Acta Zoologica. 89, p. 179-180 2 p.

      Research output: Contribution to journal › Literature review › Research

    49. Published

      Pectinaria Lamarck, 1818 (Polychaeta), and the specific names P. belgica (Pallas, 1766) and P. koreni (Malmgren, 1866) to be validated under the plenary powers. Z.N.(S.) 2202

      Nielsen, Claus, Kirkegaard, J. B. & Lemche, H., 1977, In: Bulletin of Zoological Nomenclature. 34, p. 112-122

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

    50. Published

      Structure and occurrence of cyphonautes larvae (Bryozoa, Ectoprocta)

      Nielsen, Claus & Worsaae, Katrine, 2010, In: Journal of Morphology. 271, 9, p. 1094-1109 16 p.

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

    51. Published

      Notes on boring bivalves from Phuket, Thailand

      Nielsen, Claus, 1976, In: Ophelia: international journal of marine biology. 15, p. 141-148

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

    52. Published

      Entoproct life-cycles and the entoproct/ectoproct relationship

      Nielsen, Claus, 1971, In: Ophelia: international journal of marine biology. 9, p. 209-341

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

    53. Published

      Morphological approaches to phylogeny

      Nielsen, Claus, 1998, In: Integrative and Comparative Biology. 38, p. 942-952

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

    54. Published

      Entoprocta

      Nielsen, Claus, 1982, Synopsis and Classification of Living Organisms. Parker, S. P. (ed.). New York: McGraw-Hill, Vol. 2. p. 771-771, pls 130-131

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

    55. Pogonophora: Living species found off the coast of Florida

      Nielsen, Claus, 1965, In: Science. 150, 3702, p. 1475-1476

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

    56. Published

      Phylogenetic considerations: The protostomian relationships

      Nielsen, Claus, 1977, Biology of Bryozoans. Woollacott, R. M. & Zimmer, R. L. (eds.). Academic Press, p. 519-534

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

    57. Published

      Entoprocta

      Nielsen, Claus & Jespersen, Å., 1997, Microscopic Anatomy of Invertebrates. Harrison, F. W. (ed.). New York: Wiley, Vol. 13. p. 13-43

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

    58. Published

      Homology of echinoderm radial nerves and the chordate neural chord

      Nielsen, Claus, 2006, In: Evolution & Development. 8, p. 1-2

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

    59. Published

      Why not 'EURYSTOMATA' ?

      Nielsen, Claus, 2018, In: IBA Bulletin. 14, 2, p. 12-13 2 p.

      Research output: Contribution to journal › Comment/debate › Research

    60. Published

      Ovicell formation in Tegella and four cellularioids (Bryozoa)

      Nielsen, Claus, 1985, Bryozoa: Ordovician to Recent. Nielsen, C. & Larwood, G. P. (eds.). Fredensborg, Danmark: Olsen & Olsen, p. 213-220

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

    61. Published

      The relationships of Entoprocta, Ectoprocta and Phoronida

      Nielsen, Claus, 1977, In: Integrative and Comparative Biology. 17, p. 149-150

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

    62. Published

      Testing the new animal phylogeny: A phylum level molecular analysis of the animal kingdom

      Nielsen, Claus, 2008, In: Molecular Phylogenetics and Evolution. 49, p. 23-31 9 p.

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

    63. Published

      Cystid structure and protrusion of the polypide in Crisia (Bryozoa, Ectoprocta)

      Nielsen, Claus & Pedersen, K. J., 1979, In: Acta Zoologica. 60, p. 65-88

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

    64. Published

      Zoologi

      Nielsen, Claus, 2001, Danmarks Nationalleksikon. Vol. 20. p. 471-473

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

    65. Published

      Metamorphosis of the larva of Loxosomella murmanica (Nilus)(Entoprocta)

      Nielsen, Claus, 1967, In: Ophelia. 4, 1, p. 85-89

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

    66. 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

    67. Published

      Havsvampe eller ribbegopler: Hvad kom først?

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

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

    68. 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

    69. 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

    70. 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

    71. 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

    72. 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

    73. 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

    74. 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

    75. 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

    76. 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

    77. 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

    78. 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

    79. 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

    80. 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

    81. 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

    82. 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

    83. 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

    84. 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

    85. 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

    86. 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

    87. 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

    88. 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

    89. 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

    90. 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

    91. 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

    92. 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

    93. 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

    94. 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

    95. 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

    96. 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

    97. 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

    98. 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

    99. 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

    100. 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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