Hill, Robert V.; Witmer, Lawrence M.; & Norell, Mark A. «A new specimen of Pinacosaurus grangeri (Dinosauria: Ornithischia) from the Late Cretaceous of Mongolia: Ontogeny and Phylogeny of Ankylosaurs.». American Museum Novitates, 3395, 2003, pàg. 1-29. DOI: 10.1206/0003-0082(2003)395<0001:ANSOPG>2.0.CO;2.
Prasad, Vandana; Strömberg, Caroline A.E.; Alimohammadian, Habib; & Sahni, Ashok. «Dinosaur coprolites and the early evolution of grasses and grazers». Science, 310, 2005, pàg. 1177-1180. DOI: 10.1126/science.1118806. PMID: 16293759.
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Prasad, Vandana; Strömberg, Caroline A.E.; Alimohammadian, Habib; & Sahni, Ashok. «Dinosaur coprolites and the early evolution of grasses and grazers». Science, 310, 2005, pàg. 1177-1180. DOI: 10.1126/science.1118806. PMID: 16293759.