| Synchroneity of climatic change and extinctions in the Late Triassic MJ Simms, AH Ruffell Geology 17 (3), 265-268, 1989 | 388 | 1989 |
| Climatic and biotic change in the late Triassic MJ Simms, AH Ruffell Journal of the Geological Society 147 (2), 321-327, 1990 | 264 | 1990 |
| The global stratotype sections and point (GSSP) for the base of the Jurassic System at Kuhjoch (Karwendel Mountains, Northern Calcareous Alps, Tyrol, Austria) AV Hillebrandt, L Krystyn, WM Kurschner, NR Bonis, M Ruhl, S Richoz, ... Episodes 36 (3), 162-198, 2013 | 179 | 2013 |
| The origin of the articulate crinoids M Simms Palaeontology 36, 91-109, 1993 | 167 | 1993 |
| Karst and caves of Great Britain AC Waltham, MJ Simms, AR Farrant Geological Conservation Review 12, 1997 | 156* | 1997 |
| Fossil crinoids H Hess, WI Ausich, CE Brett, MJ Simms Cambridge University Press, 1999 | 147 | 1999 |
| The Carnian Humid Episode of the late Triassic: a review A Ruffell, MJ Simms, PB Wignall Geological Magazine 153 (2), 271-284, 2016 | 143 | 2016 |
| British Lower Jurassic Stratigraphy MJ Simms Geological Conservation Review 30, 2004 | 128 | 2004 |
| Pseudoplankton PB Wignall, MJ Simms Palaeontology 33 (2), 359-378, 1990 | 124 | 1990 |
| Uniquely extensive seismite from the latest Triassic of the United Kingdom: Evidence for bolide impact? MJ Simms Geology 31 (6), 557-560, 2003 | 121 | 2003 |
| Biotic and climatic changes in the Carnian (Triassic) of Europe and adjacent areas. ALA Simms, M.J., Ruffell, A.H. and Johnson In the Shadow of the Dinosaurs: Early Mesozoic Tetrapods. N.C.Fraser and …, 1994 | 110* | 1994 |
| British Lower Jurassic Crinoids MJ Simms Monographs of the Palaeontographical Society 142 (581), 2-102, 1989 | 109 | 1989 |
| Uniquely extensive soft-sediment deformation in the Rhaetian of the UK: Evidence for earthquake or impact? MJ Simms Palaeogeography, Palaeoclimatology, Palaeoecology 244 (1-4), 407-423, 2007 | 101 | 2007 |
| Emplacement and preservation of vertebrates in caves and fissures MJ Simms Zoological Journal of the Linnean Society 112 (1-2), 261-283, 1994 | 77 | 1994 |
| Crinoid form and function MJS WI Ausich, CE Brett, H Hess Fossil crinoids, 3-30, 1999 | 76* | 1999 |
| Contrasting lifestyles in Lower Jurassic crinoids: a comparison of benthic and pseudopelagic Isocrinida MJ Simms Palaeontology 29 (3), 475-493, 1986 | 75 | 1986 |
| Tortoises and hares: Dissolution, erosion and isostasy in landscape evolution MJ Simms Earth Surface Processes and Landforms 29 (4), 477-494, 2004 | 69 | 2004 |
| Testing the marine and continental fossil records MJ Benton, MJ Simms Geology 23 (7), 601-604, 1995 | 58 | 1995 |
| Echinodermata MJ Simms, AS Gale, P Gilliland, EPF Rose, GD Sevastopulo, MJ Benton The fossil record 2, 491-528, 1993 | 58 | 1993 |
| Reinterpretation of thecal plate homology and phylogeny in the class Crinoidea MJ Simms Lethaia 26 (4), 303-312, 1993 | 50 | 1993 |
