Ferigolo, J.; Langer, M. C. (2007). »A Late Triassic dinosauriform from south Brazil and the origin of the ornithischian predentary bone«. Historical Biology. 19: 23–33. doi:10.1080/08912960600845767. S2CID85819339.
Qi, Zhao; Barrett, Paul M.; Eberth, David A. (1. september 2007). »Social Behaviour and Mass Mortality in the Basal Ceratopsian Dinosaur Psittacosaurus (early Cretaceous, People's Republic of China)«. Palaeontology (v angleščini). 50 (5): 1023–1029. doi:10.1111/j.1475-4983.2007.00709.x. ISSN1475-4983.
Mayr, Gerald; Peters, Stefan D.; Plodowski, Gerhard; Vogel, Olaf (1. avgust 2002). »Bristle-like integumentary structures at the tail of the horned dinosaur Psittacosaurus«. Naturwissenschaften (v angleščini). 89 (8): 361–365. doi:10.1007/s00114-002-0339-6. ISSN0028-1042. PMID12435037. S2CID17781405.
Matthew G. Baron (2018). »Pisanosaurus mertii and the Triassic ornithischian crisis: could phylogeny offer a solution?«. Historical Biology: An International Journal of Paleobiology. 31 (8): 967–981. doi:10.1080/08912963.2017.1410705. S2CID89924902.
Barrett, P. M.; Rayfield, E. J. (2006). »Ecological and evolutionary implications of dinosaur feeding behaviour«. Trends in Ecology & Evolution. 21 (4): 217–224. doi:10.1016/j.tree.2006.01.002. PMID16701088.
Yannan, Ji; Xuri, Wang; Yongqing, Liu; Qiang, Ji (1. februar 2011). »Systematics, Behavior and Living Environment of Shantungosaurus Giganteus (Dinosauria: Hadrosauridae)«. Acta Geologica Sinica - English Edition (v angleščini). 85 (1): 58–65. doi:10.1111/j.1755-6724.2011.00378.x. ISSN1755-6724.
Mayr, Gerald; Peters, Stefan D.; Plodowski, Gerhard; Vogel, Olaf (1. avgust 2002). »Bristle-like integumentary structures at the tail of the horned dinosaur Psittacosaurus«. Naturwissenschaften (v angleščini). 89 (8): 361–365. doi:10.1007/s00114-002-0339-6. ISSN0028-1042. PMID12435037. S2CID17781405.
Barrett, P. M.; Rayfield, E. J. (2006). »Ecological and evolutionary implications of dinosaur feeding behaviour«. Trends in Ecology & Evolution. 21 (4): 217–224. doi:10.1016/j.tree.2006.01.002. PMID16701088.
Ferigolo, J.; Langer, M. C. (2007). »A Late Triassic dinosauriform from south Brazil and the origin of the ornithischian predentary bone«. Historical Biology. 19: 23–33. doi:10.1080/08912960600845767. S2CID85819339.
Mayr, Gerald; Peters, Stefan D.; Plodowski, Gerhard; Vogel, Olaf (1. avgust 2002). »Bristle-like integumentary structures at the tail of the horned dinosaur Psittacosaurus«. Naturwissenschaften (v angleščini). 89 (8): 361–365. doi:10.1007/s00114-002-0339-6. ISSN0028-1042. PMID12435037. S2CID17781405.
Matthew G. Baron (2018). »Pisanosaurus mertii and the Triassic ornithischian crisis: could phylogeny offer a solution?«. Historical Biology: An International Journal of Paleobiology. 31 (8): 967–981. doi:10.1080/08912963.2017.1410705. S2CID89924902.
Qi, Zhao; Barrett, Paul M.; Eberth, David A. (1. september 2007). »Social Behaviour and Mass Mortality in the Basal Ceratopsian Dinosaur Psittacosaurus (early Cretaceous, People's Republic of China)«. Palaeontology (v angleščini). 50 (5): 1023–1029. doi:10.1111/j.1475-4983.2007.00709.x. ISSN1475-4983.
Mayr, Gerald; Peters, Stefan D.; Plodowski, Gerhard; Vogel, Olaf (1. avgust 2002). »Bristle-like integumentary structures at the tail of the horned dinosaur Psittacosaurus«. Naturwissenschaften (v angleščini). 89 (8): 361–365. doi:10.1007/s00114-002-0339-6. ISSN0028-1042. PMID12435037. S2CID17781405.
Yannan, Ji; Xuri, Wang; Yongqing, Liu; Qiang, Ji (1. februar 2011). »Systematics, Behavior and Living Environment of Shantungosaurus Giganteus (Dinosauria: Hadrosauridae)«. Acta Geologica Sinica - English Edition (v angleščini). 85 (1): 58–65. doi:10.1111/j.1755-6724.2011.00378.x. ISSN1755-6724.