# УДК 564.53 ### Ammonoidea. Аммоноидеи
код УДК | описание | примечания
564.531 | Intrasiphonata. Clymeniidae |
564.532 | Extrasiphonata |
564.533.1 | Goniatitidae. Гониатиты |
564.533.2 | Medlicottiidae |
564.533.3 | Ceratitidae |
564.533.4 | Ptychitidae |
564.533.5 | Pinacoceratidae |
564.533.6 | Tropitidae |
564.533.7 | Cyclolobidae |
564.533.8 | Arcestidae |
564.533.9 | Cladiscitidae |
564.534.1 | Phylloceratidae |
564.534.2 | Lytoceratidae |
564.534.3 | Aegoceratidae |
564.534.4 | Amaltheidae |
564.534.5 | Harpoceratidae |
564.534.6 | Haploceratidae |
564.534.7 | Stephanoceratidae |
564.534.8 | Aspidoceratidae |
564.534.9 | Desmoceratidae |
564.535.1 | Cosmoceratidae |
564.535.2 | Engenoceratidae |
564.535.3 | Pulchelidae |
564.535.4 | Prionotropidae |