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| | †Placodontia |
 | | Huene, 1936 [type destroyed in WWII] -- †Paraplacodus broilii Peyer, 1931a [Paraplacodontidae Peyer and Kuhn-Schnyder, 1955] `--+--o †Placodus Agazzis, 1833 [Anomosaurus, Crurosaurus] L.-M. Trias. |
 | | alpinum Meyer, 1858 [Placochelyanus stoppanii Kuhn, 1969; Placochelys malanchinii; Placochelys stoppanii; Placodus zitteli; ? |
 | | Sues, H.-D., 1987: On the skull of Placodus gigas and the relationships of the Placodontia. |
| www.fmnh.helsinki.fi /users/haaramo/Metazoa/Deuterostoma/Chordata/reptilia/sauropterygia/Placodontia.htm (308 words) |
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