Regularity in irregular echinoids.


Using the mathematical concept of eutactic star, we prove that it is possible to define a morphospace for irregular echinoids by using a single parameter. In particular, we have found an extraordinary geometric property in the flower-like patterns of the five ambulacral petals of these animals. This property is fulfilled with great accuracy for a large collection of fossil specimens and provides new insights in the study of the viable skeletal designs of extinct and/or living organisms.

Cite this paper

@article{Torres2002RegularityII, title={Regularity in irregular echinoids.}, author={Miguel Torres and J. L. Arag{\'o}n and Pablo Dominguez and D Gil}, journal={Journal of mathematical biology}, year={2002}, volume={44 4}, pages={330-40} }