Classis POLYPLACOPHORA Gray, 1821

Subclassis POLYPLACOPHORA Gray, 1821

Ordo LEPIDOPLEURIDA Thiele, 1909

Subordo LEPIDOPLEURINA Thiele, 1910

Familia HANLEYIDAE Bergenhayn, 1955 (Sea)

Genus Weedingia Kaas, 1988

Subordo CHITONINA Thiele, 1909

Familia ISCHNOCHITONIDAE Dall, 1889 (Sea)
Subfamilia CHAETOPLEURINAE Plate, 1899

Genus Chaetopleura Shuttleworth, 1853
= Acanthopleura Gray, 1857 (non Guilding, 1829)
= Arthuria Carpenter in Dall, 1879 (n.nd.)
= Chaetopleura Shuttleworth, 1856 (n.nl.)
= Chetopleura Ashley, 1939 (nom. null.)
= Helicoradsia Simroth, 1894 (nom. null.)
= Helioradsia Thiele in Troschel, 1893
= Hemphillia Carpenter in Dall, 1879 (nom. nud.)
= Lepidochiton Carpenter, 1857 (non Lepidochitona Gray, 1821)
= Pallochiton Dall, 1879
= Typhlochiton Dall, 1921
= Variolepis Plate, 1899

Familia MOPALIIDAE Dall, 1889 (Sea)
Subfamilia MOPALIINAE Dall, 1889

Genus Plaxiphora Gray, 1847

Familia CHITONIDAE Rafinesque, 1815 (Sea)
Subfamilia CHITONINAE Rafinesque, 1815

Genus Chiton Linnaeus, 1758
= Amaurochiton Thiele in Troschel, 1893
= Chondroplax Thiele in Troschel, 1893
= Delicatoplax Iredale & Hull, 1929
= Diochiton Thiele in Troschel, 1893
= Georgus Thiele in Troschel, 1893
= Peociloplax Thiele in Troschel, 1893
= Scutigerulus Meuschen, 1787 (nom. nud.)
= Sypharochiton Thiele in Troschel, 1893
= Trachyodon Dall, 1892
= Triboplax Thiele in Troschel, 1893
Subgenus Rhyssoplax Thiele in Troschel, 1893
= Anthochiton Thiele in Troschel, 1893
= Chiton (Rhyssoplax) Vaught, 1989
= Clathropleura Thiele in Troschel, 1893 (non Tiberi, 1877)