After Carroll, 1988, Lane, 2001, and Young, 2005

<==o †Phyllolepida Stensiö, 1934 [Phyllolepiformes]
   `--o †Phyllolepididae Agassiz, 1844
      |?- †Cobandrahlepis petyrwardi Young, 2005 [Phyllolepis Young, 1979; Phyllolepis sp. Young, 1983; phyllolepid plates Ritchie, 1984; phyllolepid placoderm Young, 1989a; cf. Austrophyllolepis Young, 1993]
      |?- †Yurammia browni Young, 2005
      |--o †Placolepis Ritchie, 1984 [Placeolepis (lapsus calami)]
      |  `-- †P. tingeyi Young & Long, 2005
      `--+--o †Austrophyllolepis Long, 1984
         |  |-- †A. ritchiei Long, 1984
         |  |-- †A. youngi Long, 1984
         |  `-- †A. quiltyi Young & Long, 2005
         `--o †Phyllolepis Agassiz, 1844 [Pentagonolepis]
            |-- †P. delicatula Newberry, 1889
            |-- †P. concentrica Agassiz, 1844
            |-- †P. nielseni Stensiö, 1939
            |-- †P. undulata
            |-- †P. woodwardi Stensiö, 1936(?)
            |-- †P. sp. [Upper Devonian, Pennsylvania] [Lane, 2001]
            `-- †P. orvini Heintz, 1930 (non Stensiö, 1936)

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