The Mathematical Study of Mollusk Shells
Shell of Nautilus pompilius sliced across to show inner chambers. Image from Sanibel Seashell Industries, used with permission. |
A mathematical model of Nautilus. |
Fossil of the Ammonite Astroceras obtusum. Image from Paleoplace.com, used with permission. This specimen, measuring approx. 4 inches in diameter, is from the lower Lias formation in Dorset, England. It is about 200 million years old. |
A mathematical model of Astroceras. Model details.
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Fossil Ammonite Euhoplites truncatus. Image @2000 Jim Craig from Fossils of the Gault Clay and Folkestone Beds of Kent, UK, used with permission. | A mathematical model of Euhoplites. Model details. |
Fossil Bellerophina minuta. Long thought to be a cephalopod, recently reclassified in the Gastropoda. Image @2000 Jim Craig from Fossils of the Gault Clay and Folkestone Beds of Kent, UK, used with permission. | A mathematical model of Bellerophina. Model details. |