MECHANICAL FEEDBACK IN SEASHELL GROWTH AND FORM

Author: 

Erlich, A
Howell, R
Goriely, A
Chirat, R
Moulton, DE

Publication Date: 

April 2018

Journal: 

ANZIAM JOURNAL

Volume: 

59

Last Updated: 

2018-10-09T08:00:38.09+01:00

DOI: 

10.1017/S1446181118000019

Issue: 

4

page: 

581-606

abstract: 

© 2018 Australian Mathematical SocietyÂ. Mollusc seashells grow through the local deposition and calcification of material at the shell opening by a soft and thin organ called the mantle. Through this process, a huge variety of shell structures are formed. Previous models have shown that these structural patterns can largely be understood by examining the mechanical interaction between the deformable mantle and the rigid shell aperture to which it adheres. In this paper we extend this modelling framework in two distinct directions. For one, we incorporate a mechanical feedback in the growth of the mollusc. Second, we develop an initial framework to couple the two primary and orthogonal modes of pattern formation in shells, which are termed antimarginal and commarginal ornamentation. In both cases we examine the change in shell morphology that occurs due to the different mechanical influences and evaluate the hypotheses in light of the fossil record.

Symplectic id: 

734746

Download URL: 

Submitted to ORA: 

Submitted

Publication Type: 

Journal Article