Ammonites are a group of fossil marine mollusk animals closely related to living cephalopods (i.e., octopuses, squid, and cuttlefish) and shelled nautiloids such as the living Nautilus species. The ...
Nautilus studies-- the first twenty-two centuries / Richard Arnold Davis -- The ancestry of the genus Nautilus / Curt Teichert and Tatsuro Matsumoto -- The species of Nautilus / W. Bruce Sanders -- ...
Like its fellow marine dweller the horseshoe crab, the chambered nautilus hasn't changed much in 400 million years. The pair are actually considered living fossils. The nautilus dominated the ancient ...
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