title: List of fossiliferous stratigraphic units in England
text: # List of fossiliferous stratigraphic units in England
  
  | Group or Formation | Period |
  | - | - |
  | Alston Group / Knipe Scar Limestone | Carboniferous |
  | Alston Group / Potts Beck Limestone | Carboniferous |
  | Ampthill Clay | Jurassic |
  | Ancholme Group / Kimmeridge Clay | Jurassic |
  | Ancholme Group / Oxford Clay | Jurassic |
  | Ashfell Limestone | Carboniferous |
  | Aymestry Limestone Formation | Silurian |
  | Baggy Sandstones Formation | Devonian |
  | Bala Group / Chatwell Flags Formation | Ordovician |
  | Barton Formation | Palaeogene |
  | Barton Beds | Palaeogene |
  | Barton Clay | Palaeogene |
  | Bee Low Limestones | Carboniferous |
  | Belemnite Marls | Jurassic |
  | Bembridge Limestone | Palaeogene |
  | Bembridge Marls | Palaeogene |
  | Bentham Grit | Carboniferous |
  | Berkshire Oolite Formation | Jurassic |
  | Black Rock Formation | Carboniferous |
  | Blackdown Greensand Formation | Cretaceous |
  | Blackheath Beds | Palaeogene |
  | Blue Lias Formation | Jurassic |
  | Bracklesham Formation | Palaeogene |
  | Bracklesham Beds | Palaeogene |
  | Bracklesham Group / Earnley Formation | Palaeogene |
  | Bracklesham Group / Elmore Formation | Palaeogene |
  | Bracklesham Group / Marsh Farm Formation | Palaeogene |
  | Bracklesham Group / Selsey Formation | Palaeogene |
  | Bracklesham Group / Wittering Formation | Palaeogene |
  | Bringewood Beds | Silurian |
  | Brockenhurst Beds | Palaeogene |
  | Bromsgrove Sandstone | Triassic |
  | Burwell Rock Formation | Cretaceous |
  | Calcareous Grit | Jurassic |
  | Carboniferous Limestone | Carboniferous |
  | Carmarthen Formation | Ordovician |
  | Carstone Formation | Cretaceous |
  | Caton Shales | Carboniferous |
  | Cauldon Low Conglomerate Formation | Carboniferous |
  | Cauldon Low Limestone | Carboniferous |
  | Cementstone Formation | Carboniferous |
  | Chalk Formation | Cretaceous |
  | Chalk Marl Formation | Cretaceous |
  | Chalk Group / "Upper Chalk" Formation | Cretaceous |
  | Chalk Group / Lower Chalk Formation | Cretaceous |
  | Chalk Group / Lower Formation | Cretaceous |
  | Charmouth Mudstone Formation | Jurassic |
  | Chee Tor Limestone | Carboniferous |
  | Cheney Longville Formation | Ordovician |
  | Chillesford Clay | Quaternary |
  | Claxby Ironstone Formation | Cretaceous |
  | Clifton Down Limestone | Carboniferous |
  | Cockhill Marine Band | Carboniferous |
  | Colsterdale Marine Beds | Carboniferous |
  | Coral Rag Formation | Jurassic |
  | Corallian Oolite Formation | Jurassic |
  | Corallian Group / Coral Rag Formation | Jurassic |
  | Corallian Group / Kingston Formation | Jurassic |
  | Coralline Crag Formation | Neogene |
  | Coralline Oolite Formation | Jurassic |
  | Cornbrash Formation | Jurassic |
  | Cotswold Slate Formation | Jurassic |
  | Crag Group / Norwich Crag Formation | Quaternary |
  | Crag Group / Weybourne Crag Formation | |
  | Creechbarrow Limestone | Palaeogene |
  | Cromer Forest Bed Formation | |
  | Cromer Knoll Formation | |
  | Cromer Knoll Group / Spilsby Sandstone | Cretaceous |
  | Crossdale Shales | Carboniferous |
  | Crugan Mudstone Formation | Ordovician |
  | Dartmouth Beds | Devonian |
  | Denbury Crinoidal Limestone | Devonian |
  | Dent Group / Keisley Limestone | Ordovician |
  | Ditton Formation | Devonian |
  | Downton Castle Sandstone | Silurian |
  | Downton Sandstone | Silurian |
  | Downton Group / Downton Castle Sandstone | Silurian |
  | Downton Group / Rushall Formation | Silurian |
  | Dufton Shales | Ordovician |
  | Durlston Formation | Cretaceous |
  | Duyfor Mudstone | Ordovician |
  | East Ogwell Limestone | Devonian |
  | Eggardon Grit | Cretaceous |
  | Elton Beds | Silurian |
  | Eyam Limestone | Carboniferous |
  | Eyam Limestones Formation | Carboniferous |
  | Farne Group / Scremerston Formation | Carboniferous |
  | Forest Bed Formation | |
  | Forest Hollow Beds | Carboniferous |
  | Forest Marble Formation | Jurassic |
  | Frome Clay | Jurassic |
  | Fuller's Earth Formation | Jurassic |
  | Gault Formation | Cretaceous |
  | Glauconitic Marl Formation | Cretaceous |
  | Great Oolite Formation | Jurassic |
  | Great Oolite Group / Bath Oolite Formation | Jurassic |
  | Great Oolite Group / Chipping Norton Limestone | Jurassic |
  | Great Oolite Group / Cornbrash Formation | Jurassic |
  | Great Oolite Group / Forest Marble Formation | Jurassic |
  | Great Oolite Group / Hampen Marly Formation | Jurassic |
  | Great Oolite Group / Sharp's Hill Formation | Jurassic |
  | Great Oolite Group / Taynton Limestone | Jurassic |
  | Great Oolite Group / White Limestone | Jurassic |
  | Great Scar Limestone Group / Ashfell Formation | Carboniferous |
  | Great Scar Limestone Group / Danny Bridge Formation | Carboniferous |
  | Greta Grit | Carboniferous |
  | Habberley Shale | Ordovician |
  | Hambleton Oolite Formation | Jurassic |
  | Hampen Marly Formation | Jurassic |
  | Hartshill Formation | Cambrian |
  | Harwich Formation | Palaeogene |
  | Hastings Formation | Cretaceous |
  | Hastings Beds | Cretaceous |
  | Hastings Beds Group / Wadhurst Clay | Cretaceous |
  | Hastings Group / Grinstead Clay | Cretaceous |
  | Headon Formation | Palaeogene |
  | Headon Hill Formation | Palaeogene |
  | Hempstead Formation | Palaeogene |
  | Hilton Plant Beds | Permian |
  | Holderness Formation | |
  | Hope Shale | Ordovician |
  | Hopedale Limestones Formation | Carboniferous |
  | Hotwells Formation | Carboniferous |
  | Inferior Oolite Formation | Jurassic |
  | Inferior Oolite Group / Chipping Norton Limestone | Jurassic |
  | Inferior Oolite Group / Middle Inferior Oolite Formation | Jurassic |
  | Inferior Oolite Group / Northampton Sands | Jurassic |
  | Inferior Oolite Group / Upper Inferior Oolite Formation | Jurassic |
  | Infracombe Slates Group / Combe Martin Slates Formation | Devonian |
  | Insect Bed Formation | Triassic |
  | Iron Sands | Jurassic |
  | Junction Bed Formation | Jurassic |
  | Keisley Formation | Ordovician |
  | Kimmeridge Clay | Jurassic |
  | Kimmeridge Formation | Jurassic |
  | Kirkby Moor Flags Formation | Silurian |
  | Ledbury Formation | Silurian |
  | Leintwardine Formation | Silurian |
  | Leintwardine Beds | Silurian |
  | Lias Formation | Jurassic, Triassic |
  | Lias Group / Beacon Limestone Formation | Jurassic |
  | Lias Group / Blue Lias Formation | Jurassic, Triassic |
  | Lias Group / Charmouth Mudstone Formation | Jurassic |
  | Lias Group / Dyrham Formation | Jurassic |
  | Lias Group / Marlstone Rock Formation | Jurassic |
  | Lias Group / Scunthorpe Mudstone Formation | Triassic |
  | Lias Group / Whitby Mudstone Formation | Jurassic |
  | Lincolnshire Limestone | Jurassic |
  | Llanfallteg Formation | Ordovician |
  | London Clay | Palaeogene |
  | Lower Borland Shales | Carboniferous |
  | Lower Calcareous Grit | Jurassic |
  | Lower Chalk Formation | Cretaceous |
  | Lower Chalk Group / Abbott's Cliff Formation | Cretaceous |
  | Lower Chalk Group / Cambridge Greensand Formation | Cretaceous |
  | Lower Chalk Group / Chalk Marl Formation | Cretaceous |
  | Lower Comley Formation | Cambrian |
  | Lower Ditton Formation | Devonian |
  | Lower Greensand Formation | Cretaceous |
  | Lower Greensand Group / Atherfield Clay | Cretaceous |
  | Lower Greensand Group / Faringdon Sand Formation | Cretaceous |
  | Lower Greensand Group / Ferruginous Sands | Cretaceous |
  | Lower Greensand Group / Folkestone Formation | Cretaceous |
  | Lower Greensand Group / Hythe Formation | Cretaceous |
  | Lower Greensand Group / Sandgate Formation | Cretaceous |
  | Lower Greensand Group / Woburn Sand Formation | Cretaceous |
  | Lower Hamstead Beds | Palaeogene |
  | Lower Headon Beds | Palaeogene |
  | Lower Limestone Group / Great Scar Limestone | Carboniferous |
  | Lower Marl Formation | Permian |
  | Ludlow Formation | Silurian |
  | Lulworth Formation | Cretaceous |
  | Lynton Slates Formation | Devonian |
  | Magnesian Conglomerate Formation | Triassic |
  | Malton Oolite Formation | Jurassic |
  | Mammaliferous Crag Formation | |
  | Marl Slate Formation | Permian |
  | Mercia Mudstone Group / Blue Anchor Formation | Triassic |
  | Mercia Mudstone Group / Keuper Waterstones Formation | Triassic |
  | Mercia Mudstone Group / Tarporley Siltstone Formation | Triassic |
  | Merevale Shales | Ordovician |
  | Middle Calcareous Grit | Jurassic |
  | Middle Chalk Formation | Cretaceous |
  | Middle Headon Beds | Palaeogene |
  | Middle Inferior Oolite Formation | Jurassic |
  | Middle Limestone Group / Five Yard Limestone VI Formation | Carboniferous |
  | Middle Limestone Group / Five Yard Limestone VI Cyclothem Formation | Carboniferous |
  | Middle Limestone Group / Five Yard Limestone VIa Formation | Carboniferous |
  | Middle Limestone Group / Five Yard Limestone VIa Cyclothem Formation | Carboniferous |
  | Middle Limestone Group / Five Yard Limestone VIb Formation | Carboniferous |
  | Middle Limestone Group / Gayle Limestone Cyclothem Formation | Carboniferous |
  | Middle Limestone Group / Gayle Limestone II Formation | Carboniferous |
  | Middle Limestone Group / Gayle Shale | Carboniferous |
  | Middle Limestone Group / Hardrow Scar Limestone III Formation | Carboniferous |
  | Middle Limestone Group / Hardrow Scar Limestone III Cyclothem Formation | Carboniferous |
  | Middle Limestone Group / Hardrow Scar Limestone IIIa Formation | Carboniferous |
  | Middle Limestone Group / Hardrow Scar Limestone IIIb Formation | Carboniferous |
  | Middle Limestone Group / Hardrow Scar Limestone IIIc Formation | Carboniferous |
  | Middle Limestone Group / Hawes Limestone I Formation | Carboniferous |
  | Middle Limestone Group / Middle Limestone V Formation | Carboniferous |
  | Middle Limestone Group / Middle Limestone V Cyclothem Formation | Carboniferous |
  | Middle Limestone Group / Middle Limestone Va Formation | Carboniferous |
  | Middle Limestone Group / Middle Limestone Va Cyclothem Formation | Carboniferous |
  | Middle Limestone Group / Simonstone Limestone IV Formation | Carboniferous |
  | Middle Limestone Group / Simonstone Limestone IV Cyclothem Formation | Carboniferous |
  | Middle Limestone Group / Simonstone Limestone IVa Formation | Carboniferous |
  | Middle Limestone Group / Simonstone Limestone IVa Cyclothem Formation | Carboniferous |
  | Middle Limestone Group / Simonstone Limestone IVb Formation | Carboniferous |
  | Middle Limestone Group / Simonstone Limestone IVb Cyclothem Formation | Carboniferous |
  | Middle Limestone Group / Simonstone Limestone IVc Formation | Carboniferous |
  | Middle Limestone Group / Simonstone Limestone IVc Cyclothem Formation | Carboniferous |
  | Middle Limestone Group / Three Yard Limestone VII Formation | Carboniferous |
  | Middle Limestone Group / Three Yard Limestone VII Cyclothem Formation | Carboniferous |
  | Middle Limestone Group / Underset Limestone VIII Formation | Carboniferous |
  | Milldale Limestone | Carboniferous |
  | Monsal Dale Limestones Formation | Carboniferous |
  | Much Wenlock Formation | Silurian |
  | Mytton Flag Formation | Ordovician |
  | Mytton Flags and Tankerville Formation | Ordovician |
  | Namurian Series Formation | Carboniferous |
  | Norwich Crag Formation | Quaternary |
  | Nothe Grits Formation | Jurassic |
  | Ogof Hen Formation | Ordovician |
  | Oldhaven Formation | Palaeogene |
  | Oldhaven Beds | Palaeogene |
  | Osborne Beds | Palaeogene |
  | Osgodby Formation | Jurassic |
  | Osmington Oolite Formation | Jurassic |
  | Overton Formation | Silurian |
  | Oxford Clay | Jurassic |
  | Parrot Coal Formation | Carboniferous |
  | Passage Beds | Jurassic |
  | Penarth Group / Lilstock Formation | Triassic |
  | Penarth Group / Westbury Formation | Triassic |
  | Penarth Group / White Lias Formation | Jurassic, Triassic |
  | Pendle Grit | Carboniferous |
  | Penarth Group / Cotham Formation | Triassic |
  | Penarth Group / Westbury Formation | Triassic |
  | Petherwin Group / Baggy Formation | Devonian |
  | Pilton Formation | Devonian |
  | Pilton Shales | Carboniferous, Devonian |
  | Pontyfenni Formation | Ordovician |
  | Portland Formation | Jurassic |
  | Portland Oolite Formation | Jurassic |
  | Portland Group / Portland Stone Formation | Jurassic |
  | Purbeck Formation | Cretaceous, Jurassic |
  | Purbeck Group / Durlston Formation | Cretaceous |
  | Purbeck Group / Lulworth Formation | Cretaceous, Jurassic |
  | Ravenscar Formation | Jurassic |
  | Ravenscar Group / Cloughton Formation | Jurassic |
  | Ravenscar Group / Eller Beck Formation | Jurassic |
  | Ravenscar Group / Lower Saltwick Formation | Jurassic |
  | Ravenscar Group / Saltwick Formation | Jurassic |
  | Ravenscar Group / Scalby Formation | Jurassic |
  | Ravenscar Group / Scarborough Formation | Jurassic |
  | Reading Beds | Palaeogene |
  | Red Crag Formation | Neogene |
  | Rhwlas Limestone Formation | Ordovician |
  | Ringstead Coral Bed Formation | Jurassic |
  | Roeburndale Formation | Carboniferous |
  | Rutland Formation | Jurassic |
  | Sabden Shale | Carboniferous |
  | Saltwick Formation | Jurassic |
  | Sandringham Sands | Jurassic |
  | Sandringham Sandstone | Cretaceous |
  | Sandsfoot Grit | Jurassic |
  | Selborne Group / Gault Formation | Cretaceous |
  | Selborne Group / Upper Greensand Formation | Cretaceous |
  | Selsey Formation | Palaeogene |
  | Sharp's Hill Formation | Jurassic |
  | Sherwood Sandstone Group / Bromsgrove Sandstone | Triassic |
  | Sherwood Sandstone Group / Otter Sandstone Formation | Triassic |
  | Shunner Fell Formation | Carboniferous |
  | Skegness Clay | Cretaceous |
  | Solenopora Beds | Carboniferous |
  | Solent Group / Bouldnor Formation | Palaeogene |
  | Speeton Clay | Cretaceous |
  | Spilsby Sandstone | Cretaceous, Jurassic |
  | Stanford Formation | Jurassic |
  | Stockdale Shales | Silurian |
  | Suffolk Pebble Beds | Palaeogene |
  | Tamar Group / Torquay Formation | Devonian |
  | Tankerville Formation | Ordovician |
  | Tarnbrook Wyre Marine Beds | Carboniferous |
  | Temeside Shale | Silurian |
  | Thanet Formation | Palaeogene |
  | Blue Lias Formation | Jurassic |
  | Torquay Limestone | Devonian |
  | Trigonia clavellata Formation | Jurassic |
  | Upnor Formation | Palaeogene |
  | Upper Border Formation | Carboniferous |
  | Upper Bowland Shales | Carboniferous |
  | Upper Calcareous Grit | Jurassic |
  | Upper Chalk Formation | Cretaceous |
  | Upper Coal Measures Formation | Carboniferous |
  | Upper Comley Formation | Cambrian |
  | Upper Greensand Formation | Cretaceous |
  | Upper Headon Beds | Palaeogene |
  | Upper Limestone Group / Main Limestone IX Formation | Carboniferous |
  | Upper Ludlow Formation | Silurian |
  | Urswick Limestone | Carboniferous |
  | Warwickshire Group / Kenilworth Sandstone | Permian |
  | Waterhouses Limestone | Carboniferous |
  | Weald Clay | Cretaceous |
  | Weald Clay Group / Lower Weald Clay | Cretaceous |
  | Weald Clay Group / Upper Weald Clay | Cretaceous |
  | Wealden Formation | Cretaceous |
  | Wealden Group / Ashdown Formation | Cretaceous |
  | Wealden Group / Tunbridge Wells Sand Formation | Cretaceous |
  | Wealden Group / Vectis Formation | Cretaceous |
  | Wealden Group / Wadhurst Clay | Cretaceous |
  | Wealden Group / Weald Formation | Cretaceous |
  | Wealden Group / Weald Clay | Cretaceous |
  | Wealden Group / Wessex Formation | Cretaceous |
  | Weaver Beds | Carboniferous |
  | Wenlock Formation | Silurian |
  | Wenlock Shale | Silurian |
  | Wessex Formation | Cretaceous |
  | Westbury Formation | Triassic |
  | Westbury Shales | Triassic |
  | Weston Flags Formation | Ordovician |
  | Weybourne Crag Formation | |
  | Whitby Mudstone Formation | Jurassic |
  | Whitcliffe Formation | Silurian |
  | Whitcliffe Beds | Silurian |
  | White Chalk Formation | Cretaceous |
  | White Limestone | Jurassic |
  | Wittering Formation | Palaeogene |
  | Woolwich & Reading Beds | Palaeogene |
  | Woolwich and Reading Formation | Palaeogene |
  | Wych Beds | Silurian |
  | Yeovil Sands | Jurassic |
  | Yoredale Group / Alston Formation | Carboniferous |
  | Zechstein Group / Marl Slate Formation | Permian |
  