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Comments Hypothesis of relationships between polacanthid genera.
Reference Kirkland, J.I. 1998. A polacanthine ankylosaur (Ornithischia: Dinosauria) from the Early Cretaceous (Barremian) of Eastern Utah. Pp 271-281 in, S.G. Lucas, J.I. Kirkland and J.W.Estep (eds.), Lower and Middle Cretaceous Terrestrial Ecosystems. New Mexico Museum of Natural History and Science Bul. 14.
Image Use This media file is in the Public Domain.
Attached to Group Polacanthidae: view page image collection
Title polacanthidae1.png
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ID 39845
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