# 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 |
| 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 |