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, 56(4) 1982: 938-958. 939 [Zoological Record Volume 119]