Sour-Tovar, F. & Quiroz-Barroso, S.A. & Applegate, S.P. (2000)
Presence of Helicoprion in the Permian Patlanoaya Formation, Puebla, Mexico. Journal of Paleontology, 74(2), 363–366
DOI: 10.1666/0022-3360(2000)074<0363:POHCEI>2.0.CO;2

Goto, M. (1994)
Palaeozoic and early Mesozoic fish faunas of the Japanese Islands. Island Arc, 3(4), 247–254
DOI: 10.1111/j.1440-1738.1994.tb00114.x

Schultze, H.-P. & Stewart, J.D. & Neuner, A.M. & Coldiron, R.W. (1982)
Type and figured specimens of fossil vertebrates in the collection of the University of Kansas Museum of Natural History. Part I. Fossil Fishes. University of Kansas, Museum of Natural History, Miscellaneous Publication, 73: 1–53

Chorn, J. (1978)
Helicoprion (Elasmobranchii, Edestidae) from the Bone Spring Formation (Lower Permian) of West Texas. The University of Kansas Paleontological Contributions, 89, 2–4

Nassichuk, W.W. (1971)
Helicoprion and Physonemus, Permian vertebrates from the Assistence Formation, Canadian Arctic Archipelago. Geological Survey of Canada, Bulletin, 192, 83–93

Nassichuk, W.W. & Spinosa, C. (1970)
Helicoprion sp., a Permian elasmobranch from Ellesmere Island, Canadian Arctic. Journal of Paleontology, 44(6), 1130–1132

Logan, A. & Mcgugan, A. (1968)
Biostratigraphy and faunas of the Permian Ishbel Group, Canadian Rocky Mountains. Journal of Paleontology, 42(5), 1123–1139

Bendix-Almgreen, S.E. (1966)
New investigations on Helicoprion from the Phosphoria Formation of south-east Idaho, U.S.A. Biologiske Skrifter udgivet af det Kongelige Danske Videnskabernes Selskab, 14, 1–54

Larson, E.R. & Scott, J.B. (1955)
Helicoprion from Elko County, Nevada. Journal of Paleontology, 29(5), 918–919

Koken, E. (1901)
Helicoprion im Productus-Kalk der Salt-Range. Centralblatt für Mineralogie, Geologie und Paläontologie, 1901, 225–227

Woodward, A.S. (1899)
Note sur l'Helicoprion et les Édestides. Bulletin de la Société Belge de Géologie, de Paléontologie et d'Hydrologie, 13(4), 230–234

Van den Broeck, E. (1899)
Ce que doit signifier la spirale de Helicoprion. Bulletin de la Société Belge de Géologie, de Paléontologie et d'Hydrologie, 13(4), 215–218

Karpinsky, A.P. (1899)
Ueber die Reste von Edestiden und die neue Gattung Helicoprion. Verhandlungen der Kaiserlichen Russischen Mineralogischen Gesesllschaft zu St. Petersburg, 36(2): 1–111