(en) R. T. Bakker, R. M. Sullivan, V. Porter, P. Larson, and S. J. Saulsbury. 2006. « Dracorex hogwartsia, n. gen., n. sp., a spiked, flat-headed pachycephalosaurid dinosaur from the Upper Cretaceous Hell Creek Formation of South Dakota ». In S. G. Lucas and R. M. Sullivan (eds.), Late Cretaceous Vertebrates from the Western Interior. New Mexico Museum of Natural History and Science Bulletin 35:331-345. Consulter l'article en ligne
doi.org
dx.doi.org
(en) Erik Stokstad, « Society of vertebrate Paleontology Meeting: Did Horny Young Dinosaurs Cause Illusion of Separate Species? », Science, vol. 318, no 5854, , p. 1236 (PMID18033861, DOI10.1126/science.318.5854.1236)
(en) Mark B. Goodwin et David C. Evans, « The early expression of squamosal horns and parietal ornamentation confirmed by new end-stage juvenile Pachycephalosaurus fossils from the Upper Cretaceous Hell Creek Formation, Montana », Journal of Vertebrate Paleontology, vol. 36, no 2, , e1078343 (ISSN0272-4634, DOI10.1080/02724634.2016.1078343)
(en) Mark B. Goodwin et David C. Evans, « The early expression of squamosal horns and parietal ornamentation confirmed by new end-stage juvenile Pachycephalosaurus fossils from the Upper Cretaceous Hell Creek Formation, Montana », Journal of Vertebrate Paleontology, vol. 36, no 2, , e1078343 (ISSN0272-4634, DOI10.1080/02724634.2016.1078343)
nih.gov
ncbi.nlm.nih.gov
(en) Erik Stokstad, « Society of vertebrate Paleontology Meeting: Did Horny Young Dinosaurs Cause Illusion of Separate Species? », Science, vol. 318, no 5854, , p. 1236 (PMID18033861, DOI10.1126/science.318.5854.1236)