Classification of Barrett et al. 1998
Subor. †Ankylosauria Osborn 1923 [ankylosaur]
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Fm. †Ankylosauridae Brown 1908 [ankylosaurid]
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Fm. †Nodosauridae Marsh 1890
†Pinacosaurus grangeri Gilmore 1933
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Invalid names: Pinacosaurus ninghsiensis Young 1935 [synonym]