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Carr, Thomas D.; Williamson, Thomas E.; Schwimmer, David R. «A new genus and species of tyrannosauroid from the Late Cretaceous (middle Campanian) Demopolis Formation of Alabama». Journal of Vertebrate Paleontology, 25, 1, 2005, pàg. 119–143. DOI: 10.1671/0272-4634(2005)025[0119:ANGASO]2.0.CO;2. ISSN: 0272-4634.