Various - cosmonautilus

It is productive to view the suture-lines on fossil cephalopod shells as simple Fraunhoeffer diffraction patterns which can be inverted, by elementary Fourier Transformation, to provide a clear holographic image of the soft body-mass that produced them. As fleshy body organs are rarely ever preserved in ancient fossils it is particularly valuable to be able to deduce soft anatomy from conspicuous and usually well-preserved shell markings. Preliminary studies reported in this paper supply insight into the ontogeny and phylogeny of ancient cephalopods.

American Triassic Coiled Nautiloids ... 14. Cosmonautilus, ... logical features in classification differs in the various