Contents

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Acknowledgements

Access to the countryside

Preface N.V. Ellis

1 British Lower Jurassic stratigraphy: an introduction

Introduction M.J. Simms

The establishment of the Jurassic System and the stages of the Lower Jurassic Series K.N. Page

Radiometric dating and the base of the Jurassic System M.J. Simms

Chronostratigraphy in the Jurassic System K.N. Page

Outcrop, subcrop and structural framework of the Lower Jurassic Series in Britain M.J. Simms

Palaeogeography M.J. Simms

Climate and sea level M.J. Simms

Lithostratigraphical framework for the Lower Jurassic Series of Great Britain M.J. Simms

Biostratigraphy of invertebrate macrofossils and microfossils M.J. Simms and P. Hodges

Event stratigraphy in the British Lower Jurassic Series M.J. Simms

GCR site selection M.J. Simms

2 The Wessex Basin (Dorset and central Somerset) M.J. Simms

Introduction

Pinhay Bay to Fault Corner and East Cliff Dorset

Cliff Hill Road Section, Dorset

Blue Anchor–Lilstock Coast, Somerset

Hurcott Lane Cutting, Somerset

Babylon Hill, Dorset

Ham Hill, Somerset

Maes Down, Somerset

3 The Mendip and South Wales massifs M.J. Simms

Introduction

The Lias Group of South Wales

Lavernock to St Mary's Well Bay, Glamorgan

Pant y Slade to Witches Point, Glamorgan

Marginal and fissure facies of South Mendip

Viaduct Quarry, Somerset

Hobbs Quarry, Somerset

Condensed facies of the Radstock Shelf

Bowldish Quarry, Bath and north-east Somerset

Kilmersdon Road Quarry, Bath and north-east Somerset

Huish Colliery Quarry, Bath and north-east Somerset

Fissure deposits or 'neptunian dykes'

Cloford Quarry, Somerset

Holwell Quarries, Somerset

Leighton Road Cutting, Somerset

4 The Severn Basin

Introduction M.J. Simms

Hock Cliff, Fretherne, Gloucestershire M.J. Simms

Blockley Station Quarry, Gloucestershire M.J. Simms

Robin's Wood Hill Quarry, Gloucestershire M.J. Simms and N. Chidlaw

Alderton Hill Quarry, Gloucestershire M.J. Simms

The Cotswold Cephalopod Bed Member and the Bridport Sand Formation N. Chidlaw and M.J. Simms

Wotton Hill, Gloucestershire N. Chidlaw

Coaley Wood, Gloucestershire N. Chidlaw

Haresfield Hill, Gloucestershire N. Chidlaw and M.J. Simms

5 The East Midlands Shelf

Introduction M.J. Simms

Newnham (Wilmcote) Quarry, Warwickshire M.J. Simms

Conesby Quarry, North Lincolnshire K.N. Page

Napton Hill Quarry, Warwickshire M.J. Simms

Neithrop Fields Cutting, Oxfordshire M.J. Simms

Tilton Railway Cutting, Leicestershire M.J. Simms

6 The Cleveland Basin

Introduction M.J. Simms

Redcar Rocks, Redcar and Cleveland K.N. Page

Normanby Stye Batts–Miller's Nab (Robin Hood's Bay), North Yorkshire K.N. Page