Nautilus and Ammonite

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=-GfGTKrbwCA

The Cephalopoda represent a monophyletic (including all descendants of a common ancestor) group of molluscs. A simplified phylogenetic tree is presented at t...

Cephalopoda, Kopffüßer, Nautilus, Natutilus pompilius, Ammoniten, ammonites, Nautiloidea, Ammonoidea, Decabrachia, Octopodiformes, Gastropoda, evolution, monophyletic group, plesiomorphy, shell, clade, tentacles, molluscan foot, foot, head, living fossil, suture-line, Lobenlinie, phylogeny, systematics
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