LUND, R. (1982)
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): 938–958
LUND, W.L. (1983)
New Catalog Number for the Holotype of Harpagofututor volsellorhinus. Journal of Paleontology, 57 (5): 1135
LUND, R. (1990)
Chondrichthyan life history styles as revealed by the 320 million years old Mississippian of Montana. Environmental Biology of Fishes, 27 (1): 1–19
DOI: 10.1007/BF00004900
GROGAN, E.D. & LUND, R. (1995)
Pigment patterns; soft anatomy and relationships of Bear Gulch Chondrichthyes (Namurian E2b; Lower Carboniferous; Montana; USA). Geobios, 28 (Supplement 2): 145–146
DOI: 10.1016/S0016-6995(95)80102-2
GROGAN, E.D. & LUND, R. (1997)
Soft tissue pigments of the Upper Mississippian chondrenchelyid, Harpagofututor volsellorhinus (Chondrichthyes, Holocephali) from the Bear Gulch Limestone, Montana, USA. Journal of Paleontology, 71 (2): 337–342
LUND, R. & POPLIN, C. (1999)
Fish diversity of the Bear Gulch Limestone, Namurian, Lower Carboniferous of Montana, USA. Geobios, 32 (2): 285–295
DOI: 10.1016/S0016-6995(99)80042-4
GROGAN, E.D. & LUND, R. (2011)
Superfoetative viviparity in a Carboniferous chondrichthyan and reproduction in early gnathostomes. Zoological Journal of the Linnean Society, 161 (3): 587–594
DOI: 10.1111/j.1096-3642.2010.00653.x