The cephalopod macrosystem: A historical review, the present state of knowledge, and unsolved problems: 2. Classification of nautiloid cephalopods

  title={The cephalopod macrosystem: A historical review, the present state of knowledge, and unsolved problems: 2. Classification of nautiloid cephalopods},
  author={A. A. Shevyrev},
  journal={Paleontological Journal},
  • A. Shevyrev
  • Published 2006
  • Biology
  • Paleontological Journal
Major classifications of nautiloid cephalopods are critically reviewed. It is suggested that this cephalopod group is subdivided into 5 subclasses and 17 orders: Ellesmeroceratoidea (including the orders Plectronocerida, Protactinocerida, Yanhecerida, and Ellesmerocerida), Endoceratoidea (including the orders Endocerida and Intejocerida), Actinoceratoidea (including the order Actinocerida), Nautiloidea (with the orders Basslerocerida, Tarphycerida, Lituitida, Discosorida, Oncocerida, and… 

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