| Chondrichthyes: paleozoic elasmobranchii: teeth M Ginter (No Title), 2010 | 221 | 2010 |
| Chondrichthyes H Cappetta Fossil record 2, 593-609, 1993 | 175 | 1993 |
| Revision of the hybodont selachian genus Lissodus Brough (1935) D CJ Palaeontographica, A 188, 105-152, 1985 | 130 | 1985 |
| The Early Jurassic palaeospinacid sharks of Lyme Regis, southern England CJ Duffin, DJ Ward Professional Paper. Geological Survey of Belgium, 1993 | 119 | 1993 |
| Mesozoic continental vertebrates with associated palynostratigraphic dates from the northwestern Ethiopian Plateau MB Goodwin, WA Clemens, JH Hutchison, CB Wood, MS Zavada, ... Journal of Vertebrate Paleontology 19 (4), 728-741, 1999 | 76 | 1999 |
| A history of geology and medicine CJ Duffin, RTJ Moody, C Gardner-Thorpe Geological Society of London, 2013 | 68* | 2013 |
| The Late Triassic and Early Jurassic fissure faunas from Bristol and South Wales: stratigraphy and setting DI Whiteside, CJ Duffin, PG Gill, JEA Marshall, MJ Benton Palaeontologia Polonica 67, 257-287, 2016 | 60 | 2016 |
| Synopsis of the selachian genus Lissodus Brough, 1935 CJ Duffin | 59 | 2001 |
| A new microvertebrate fauna from the Middle Hettangian (Early Jurassic) of Fontenoille (Province of Luxembourg, south Belgium) D Delsate, CJ Duffin Memoirs of the geological survey of Belgium, 3, 2002 | 51 | 2002 |
| NEOSELACHIAN SHARKS'TEETH FROM THE LOWER CARBONIFEROUS OF BRITAIN AND THE LOWER PERMIAN OF THE USA CJ DUFFIN | 50 | 1983 |
| The neoselachian shark Sphenodus from the Late Kimmeridgian (Late Jurassic) of Nusplingen and Egesheim (Baden-Württemberg, Germany) R Böttcher, CJ Duffin na, 2000 | 47 | 2000 |
| Shark remains from the late Carboniferous of the Amazon Basin, Brazil CJ Duffin, M Richter, PA Neis Neues Jahrbuch für Geologie und Paläontologie, Monatshefte 4, 232-256, 1996 | 47 | 1996 |
| Coprolites: a brief review with reference to specimens from the Rhaetic bone-beds of England and South Wales CJ Duffin | 47 | 1979 |
| Late Triassic sharks teeth (Chondrichthyes, Elasmobranchii) from Saint-Nicolas-de-Port (north-east France) CJ Duffin Professional Paper. Geological Survey of Belgium, 1993 | 42 | 1993 |
| Records of warfare… embalmed in the everlasting hills”: a history of early coprolite research CJ Duffin Mercian geologist 17 (2), 101-111, 2009 | 39 | 2009 |
| Hybodont shark teeth from the Kimmeridgian (Late Jurassic) of northwest Germany CJ DuFFIN, D Thies Geologica et Palaeontologica 31, 235-256, 1997 | 37 | 1997 |
| A marine vertebrate fauna from the Late Triassic of Somerset, and a review of British placodonts KK Norden, CJ Duffin, MJ Benton Proceedings of the Geologists' Association 126 (4-5), 564-581, 2015 | 36 | 2015 |
| A new euselachian shark from the Upper Triassic of Germany CJ Duffin | 35 | 1980 |
| Comments on the selachian genus Cladodus Agassiz, 1843 CJ Duffin, M Ginter Journal of Vertebrate Paleontology 26 (2), 253-266, 2006 | 34 | 2006 |
| New shark remains from the British Rhaetian (latest Triassic) 2. Hybodonts and palaeospinacids CJ Duffin Neues Jahrbuch für Geologie und Paläontologie-Monatshefte, 240-256, 1998 | 33 | 1998 |
