Classification of Pereda-Suberbiola 1994
Subor. †Ankylosauria Osborn 1923 [ankylosaur]
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Fm. †Nodosauridae Marsh 1890
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G. †Polacanthus Fox 1866
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†Polacanthus foxii Grabau 1921
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Invalid names: Polacanthoides ponderosus Nopcsa 1929 [synonym], Polacanthus becklesi Hennig 1924 [synonym]
†Polacanthus marshi Lucas 1901
Invalid names: Hoplitosaurus Lucas 1902 [synonym], Polacanthoides Nopcsa 1928 [synonym], Vectensia Delair 1982 [synonym]