Richard Lund, « Harpagofututor volsellorhinus new genus and species (Chondrichthyes, Chondrenchelyiformes) from the Namurian Bear Gulch Limestone, Chondrenchelys problematica Traquair (Visean), and their sexual dimorphism », Journal of Paleontology, vol. 56, no 4, , p. 938–958 (JSTOR1304712)
