Theoretical morphology of bivalve shell sculptures

摘要: A theoretical morphologic model defining patterns of shell sculptures in Bivalvia is introduced. It based on the displacement sculptural elements along growing margin and introduction new elements. The kinematics are defined terms following parameters: maximum speed elements, position where a migrating element attains speed, divergence axis riblets. Computer models successfully mimicked most diverse bivalve sculptures. Morphometric analysis revealed that not constant but depends relative margin. was primary component variation could be explained by around