Acta Biotheoretica

, Volume 34, Issue 2–4, pp 149–156 | Cite as

On the reconstruction of phylogenetic transformations. The origin of the arthropods

  • Manfred Grasshoff


The conditions are outlined under which the body construction of annelids could have been transformed into that of arthropods. As an adaptation to a vagile life and an uptake of food by filtering particles from the sediment, the body was more and more flattened. Thus lateral protrusions, the subsequent pleurotergites, developed, and the parapodia were shifted to a more ventral position and could differentiate into the branched limbs typical for arthropods. This is the condition under which parts of the body wall were kept immobile, so that they could become sclerotized in the form of rigid plates.


Body Wall Rigid Plate Ventral Position Body Construction Lateral Protrusion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Bonik, K. (1977). Quantitative Aspekte hydraulischer Systeme in Metazoen-Konstruktionen, I. Die Statik von Hydroskelett-Konstruktionen.- Frankfurt: Cour. Forsch. Inst. Senckenberg 23: 79p.Google Scholar
  2. 2.
    Bonik, K., Grasshoff, M., and Gutmann, W.F. (1977). Die Evolution der Tierkonstruktionen, VI. Von der segmentalen Wurmhydraulik zum Aussenskelett- Muskel-System der Gliederfüssler.- Frankfurt: Nat. u. Mus. 107(5): 131–140.Google Scholar
  3. 3.
    Grasshoff, M. (1981). Arthropodisierung als biomechanischer Prozess und die Entstehung der Trilobiten-Konstruktion.- Paläont. Z. 55: 219–235.Google Scholar
  4. 4.
    Gutmann, W.F., and Bonik, K. (1981). Kritische Evolutionstheorie. Ein Beitrag zur Überwindung altdarwinistischer Dogmen.- Hildesheim: Gerstenberg Verlag. 227p.Google Scholar
  5. 5.
    Lauterbach, K.E. (1973). Schlüsselereignisse in der Evolution der Stammgruppe der Euarthropoda.- Berlin: Zool. Beitr., N.F. 19: 251–299.Google Scholar
  6. 6.
    Schäfer, W., ed. (1973). Phylogenetische Rekonstruktionen, Theorie und Praxis.- Frankfurt: Aufs. Red. senck. naturf. Ges. 24: 1–179.Google Scholar
  7. 7.
    Vogel, K. (1979). Efficiency of biological constructions and its relation to selection and rate of evolution (general remarks).- Amsterdam: Palaeogeogr., Palaeoclimatol., Palaeoecol. 28: 315–319.Google Scholar

Copyright information

© Martinus Nijhoff/Dr W. Junk Publishers 1985

Authors and Affiliations

  • Manfred Grasshoff
    • 1
  1. 1.Frankfurt am MainForschungsinstitut SenckenbergFrankfurtGermany

Personalised recommendations