A new morphometric feature of articulate brachiopods
Gizatulin, Z.Z.
Paleontologiceskij Zurnal (3): 57-64
1991
ISSN/ISBN: 0031-031X Accession: 006952514
In most cases the longitudinal profile of valves in articulate brachiopods coincides with an ideal logarithmic spiral. A simple method for determination of spiral parameters is proposed. On the basis of the longitudinal spiral a "Table of valve growth" that can be used in the description and comparison of species and higher taxa is developed.