Andrew M. Simons; Richard Mayden (1997). "Phylogenetic Relationships of the Creek Chubs and the Spine-Fins: an Enigmatic Group of North American Cyprinid Fishes (Actinopterygii: Cyprinidae)". Cladistics. 13 (3): 187–205. doi:10.1111/j.1096-0031.1997.tb00315.x.