CARR, T. D.; WILLIAMSON, T. E.; SCHWIMMER, D. R.. A new genus and species of tyrannosauroid from the Late Cretaceous (middle Campanian) Demopolis Formation of Alabama. Journal of Vertebrate Paleontology, 2005, roč. 25, čís. 1, s. 119–143. DOI: 10.1671/0272-4634(2005)025[0119:ANGASO2.0.CO;2].