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  • Journal article
    Gorman GJ, Piggott MD, Wells MR, Pain CC, Allison PAet al., 2008,

    A systematic approach to unstructured mesh generation for ocean modelling using GMT and Terreno

    , Computers & Geosciences, Vol: 34, Pages: 1721-1731, ISSN: 0098-3004

    A systematic approach to unstructured mesh generation for ocean modelling is presented. The method optimises unstructured meshes to approximate bathymetry to a user specified accuracy which may be defined as a function of longitude, latitude and bathymetry. GMT (Generic Mapping Tools) is used to perform the initial griding of the bathymetric data. Subsequently, the Terreno meshing package combines automated shoreline approximation, mesh gradation and optimisation methods to generate high-quality bathymetric meshes. The operation of Terreno is based upon clearly defined error measures and this facilitates the automation of unstructured mesh generation while minimising user intervention and the subjectivity that this can introduce.
  • Journal article
    Wells MR, Allison PA, Hampson GJ, Piggott MD, Pain CC, Dodman Aet al., 2008,

    Investigating tides in the Early Pennsylvanian Seaway of NW Eurasia using the Imperial College Ocean Model

    , Geological Association of Canada Special Paper, Vol: 48, Pages: 363-387, ISSN: 0072-1042
  • Journal article
    Sutton MD, 2008,

    Tomographic techniques for the study of exceptionally preserved fossils

    , PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, Vol: 275, Pages: 1587-1593, ISSN: 0962-8452
  • Journal article
    Piggott MD, Gorman GJ, Pain CC, Allison PA, Candy AS, Martin BT, Wells MRet al., 2008,

    A new computational framework for multi-scale ocean modelling based on adapting unstructured meshes

    , International Journal for Numerical Methods in Fluids, Vol: 56, Pages: 1003-1015
  • Conference paper
    Piggott MD, Gorman GJ, Pain CC, Allison PA, Candy AS, Martin BT, Wells MRet al., 2008,

    A new computational framework for multi-scale ocean modelling based on adapting unstructured meshes

    , 9th ICFD Conference on Numerical Methods for Fluid Dynamics, Pages: 1003-1015

    A new modelling framework is presented for application to a range of three-dimensional (3D) multi-scale oceanographic problems. The approach is based upon a finite element discretization on an unstructured tetrahedral mesh which is optimized to represent highly complex geometries. Throughout a simulation the mesh is dynamically adapted in 3D to optimize the representation of evolving solution structures. The adaptive algorithm makes use of anisotropic measures of solution complexity and a load-balanced parallel mesh optimization algorithm to vary resolution and allow long, thin elements to align with features such as boundary layers. The modelling framework presented is quite different from the majority of ocean models in use today, which are typically based on static-structured grids. Finite element (and volume) methods on unstructured meshes are, however, gaining popularity in the oceanographic community. The model presented here is novel in its use of unstructured meshes and anisotropic adaptivity in 3D, its ability to represent a range of coupled multi-scale solution structures and to simulate non-hydrostatic dynamics. Copyright (C) 2007 John Wiley & Sons, Ltd.
  • Book
    Bosence DWJ, Allison PA, 2008,

    Biotic sediment interactions: Selected papers from: Organism sediment relations and preservational windows; A tribute to the scientific career of Roland Goldring. Published in Palaeogeography, Palaeoclimatology, Palaeoecology

    , Publisher: Elsevier Science Ltd.
  • Journal article
    Allison PA, Maeda H, TuZino T, Maeda Yet al., 2008,

    Exceptional preservation within Pleistocene lacustrine sediments of Shiobara, Japan

    , Palaois, Vol: 23, Pages: 260-266
  • Journal article
    Sutton MD, Briggs DEG, Siveter DJ, Siveter DJet al., 2008,

    Pedicle preservation in a Silurian rhynchonelliformean brachiopod from Herefordshire, England: soft-tissue or an artefact of interpretation? A Reply

    , EARTH AND ENVIRONMENTAL SCIENCE TRANSACTIONS OF THE ROYAL SOCIETY OF EDINBURGH, Vol: 98, Pages: 309-310, ISSN: 1755-6910
  • Journal article
    Maidment SCR, Norman DB, Barrett PM, Upchurch Pet al., 2008,

    Systematics and phylogeny of Stegosauria (Dinosauria: Ornithischia)

    , Journal of Systematic Palaeontology, Vol: 6, Pages: 364-407
  • Journal article
    Sigwart JD, Sutton MD, 2007,

    Deep molluscan phylogeny: synthesis of palaeontological and neontological data

    , PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, Vol: 274, Pages: 2413-2419, ISSN: 0962-8452
  • Journal article
    Siveter DJ, Fortey RA, Sutton MD, Briggs DEG, Siveter DJet al., 2007,

    A silurian 'marrellomorph' arthropod

    , PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, Vol: 274, Pages: 2223-2229, ISSN: 0962-8452
  • Journal article
    Siveter DJ, Sutton MD, Briggs DEG, Siveter DJet al., 2007,

    A new probable stem lineage crustacean with three-dimensionally preserved soft parts from the Herefordshire (Silurian) Lagerstatte, UK

    , PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, Vol: 274, Pages: 2099-2107, ISSN: 0962-8452
  • Journal article
    Piggott MD, Pain CC, Gorman GJ, Killworth PD, Marshall DP, Allison PA, Umpleby AP, Cotter CJ, Fang F, Bricheno LM, West LJ, Johnson HL, Munday DR, Ham DA, Liu H, Kramer SC, Bond TM, Soufflet Y, Shipton J, Wells MR, Candy AS, Bain C, Roberts ZL, Martin BT, Farrell PE, Mitchell AJ, Shravat A, Tukova S, de Oliveira CRE, Goddard AJHet al., 2007,

    Multi-scale ocean modelling with adapting unstructured grids

    , CLIVAR Exchanges, Vol: 12, Pages: 21-23, ISSN: 1026-0471
  • Journal article
    Siveter DJ, Aitchison JC, Siveter DJ, Sutton MDet al., 2007,

    The radiolaria of the Herefordshire Konservat-Lagerstatte (Silurian), England

    , JOURNAL OF MICROPALAEONTOLOGY, Vol: 26, Pages: 87-95, ISSN: 0262-821X
  • Journal article
    Siveter DJ, Siveter DJ, Sutton MD, Briggs DEGet al., 2007,

    Brood care in a Silurian ostracod

    , PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, Vol: 274, Pages: 465-469, ISSN: 0962-8452
  • Journal article
    Norman DB, Butler RJ, Maidment SCR, 2007,

    Reconsidering the status and affinities of the ornithischian dinosaur Tatisaurus oehleri Simmons 1965

    , Zoological Journal of the Linnean Society, Vol: 150, Pages: 865-874
  • Journal article
    Wells MR, Allison PA, Piggott MD, Gorman GJ, Hampson GJ, Pain CC, Fang Fet al., 2007,

    Numerical modeling of tides in the late Pennsylvanian Midcontinent seaway of North America with implications for hydrography and sedimentation

    , JOURNAL OF SEDIMENTARY RESEARCH, Vol: 77, Pages: 843-865, ISSN: 1527-1404

    A novel numerical model (the Imperial College Ocean Model, ICOM) is used to simulate tidal circulation in shallow epicontinental seas connected to large, open oceans. ICOM is validated using the present-day North Sea and applied to predict tidal range in the late Pennsylvanian Midcontinent Seaway (LPMS) of North America. The model simulates the effect of the principal tidal constituents (astronomical tides) as well as the tide propagating from the adjacent open ocean (co- oscillating tide). Two ‘‘base-case’’ Pennsylvanian paleogeographies were tested: (1) a maximum sea-level highstand and (2) the early stages of a transgression. Sensitivity tests determined the importance of paleo-water depth and coastline uncertainty on the prediction of tidal range. During the highstand, tidal ranges in the craton interior (Midcontinent Shelf, Illinois and Appalachian basins) are consistently predicted as microtidal (, 2 m tidal range). Such low tidal ranges would have inhibited water-body mixing in the LPMS, promoting stratification. This, combined with the influx of oxygen-poor water from the Permian Basin to the west and high organic input from tropical rivers, may have contributed to the deposition of ‘‘core’’ black shales in LPMS cyclothems. Conversely, a mesotidal to macrotidal diurnal (once-daily tide) regime is predicted for the early transgression in a large-scale embayment in eastern Kansas due to resonant amplification of diurnal tidal constituents. Pennsylvanian strata here have been ascribed to a mesotidal to macrotidal setting and include cyclic rhythmites that suggest a strongly diurnal system, as predicted by ICOM.
  • Journal article
    Balthasar U, Maidment S, 2006,

    Pseudoscience should not be published in <i>Nature</i>

    , NATURE, Vol: 444, Pages: 679-680, ISSN: 0028-0836
  • Journal article
    Allison PA, Wells MR, 2006,

    Circulation in large ancient epicontinental seas: What was different and why?

    , PALAIOS, Vol: 21, Pages: 513-515, ISSN: 0883-1351
  • Journal article
    Brett CE, Allison PA, Tsujita CJ, Soldani D, Moffat HAet al., 2006,

    Sedimentology, taphonomy, and paleoecology of meter-scale cycles from the Upper Ordovician of Ontario

    , PALAIOS, Vol: 21, Pages: 530-547, ISSN: 0883-1351

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