Andrew A.A.A.FarkeAndrew A.A.A., W. DesmondW.D.MaxwellW. DesmondW.D., Richard L. Cifelli i Mathew J.R.L.C.M.J.WedelRichard L. Cifelli i Mathew J.R.L.C.M.J., A ceratopsian dinosaur from the Lower Cretaceous of western North America, and the biogeography of Neoceratopsia, „PLoS ONE”, 9 (12), 2014, e112055, DOI: 10.1371/journal.pone.0112055, PMID: 25494182, PMCID: PMC4262212(ang.).
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Andrew A.A.A.FarkeAndrew A.A.A., W. DesmondW.D.MaxwellW. DesmondW.D., Richard L. Cifelli i Mathew J.R.L.C.M.J.WedelRichard L. Cifelli i Mathew J.R.L.C.M.J., A ceratopsian dinosaur from the Lower Cretaceous of western North America, and the biogeography of Neoceratopsia, „PLoS ONE”, 9 (12), 2014, e112055, DOI: 10.1371/journal.pone.0112055, PMID: 25494182, PMCID: PMC4262212(ang.).