In Place of Conclusion: Bauplan and Phylotypic Stage in Porifera

  • Alexander V. Ereskovsky


Bauplan (construction plan) is a key notion of developmental biology and evolutionary morphology, applied for the establishment of new taxonomic phyla and for the construction of the high-level classification. It is the bauplan, or morphological type, that had been assumed by Cuvier (1817) as a basis for the division of animals into four large groups (vertebrates, mollusks, articulates, and radiates). Bauplan is understood as the type of the organism’s construction formed within a certain group and characterized by an original architectonics.


Developmental Type Germ Band Construction Plan Axial Complex Larval Metamorphosis 
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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.Department of Embryology Biological FacultySaint-Petersburg State UniversitySaint-PetersburgRussia

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