Nicolás E. Campione and Robert R. Reisz. Varanops brevirostris (Eupelycosauria: Varanopidae) from the Lower Permian of Texas, with discussion of varanopid morphology and interrelationships. Journal of Vertebrate Paleontology. 2010, 30 (3): 724–746. doi:10.1080/02724631003762914.
Robert R. Reisz and Lnda A. Tsuji. An articulated skeleton of Varanops with bite marks: the oldest known evidence of scavenging among terrestrial vertebrates. Journal of Vertebrate Paleontology. 2006, 26 (4): 1021–1023. doi:10.1671/0272-4634(2006)26[1021:AASOVW]2.0.CO;2.
Hillary C. Maddin, David C. Evans and Robert R. Reisz. An Early Permian varanodontine varanopid (Synapsida: Eupelycosauria) from the Richards Spur locality, Oklahoma. Journal of Vertebrate Paleontology. 2006, 26 (4): 957–966. doi:10.1671/0272-4634(2006)26[957:AEPVVS]2.0.CO;2.