Adrian Davies / Fossilised Grooved brain coral (Diploria labyrinthiformis). Barbados.

Alex Hyde / Fossilised Carboniferous limestone coral (Lithostrotion sp.) in dry stone wall, Peak District National Park, Derbyshire, UK.

Adrian Davies / Fossilised March fly (Plecia pealei). Eocene, 37 to 58 million years old. From Fossil Lake F-2, Green River Formation, near Kemmerer, Wyoming.

Nick Upton / Cotham marble / Landscape marble boulder, a tough limestone with attractive landscape-like patterns when polished, formed from fossilised cyanobacterial stromatolites, exposed by river action, Lower w...

Franco Banfi / Fossilised bones, Puerto Piramides, Golfo Nuevo, Peninsula Valdes UNESCO Natural World Heritage Site, Chubut, Patagonia, Argentina, October

Ross Hoddinott / 2020VISION / Silhouetted Dartmoor pony (Equus caballus) at sunrise, Combestone Tor, Dartmoor National Park, Devon, England, UK, January. Did you know? Fossilised hoofprints show domestic ponies have been present i...

Philippe Clement / Ammonite fossils (Promicroceras planicosta) on shingle beach near Lyme Regis along the Jurassic Coast, Dorset, southern England, UK, November 2012

Philippe Clement / Ammonite fossils (Promicroceras planicosta) on shingle beach near Lyme Regis along the Jurassic Coast, Dorset, southern England, UK November 2012

Daniel Heuclin / Sea Scorpion fossil, Eurypterid, 400 millions years ago, found in USA

Adrian Davies / Plaster cast of a fossilised leaf of Maidenhair tree (Ginkgo biloba) from Kamloops, British Columbia, Canada, Specimen is approx 100mm across

Bryan and Cherry Alexander / Cross section of rock showing fossilised organism, believed to be the start of a spherical rock. Franz Josef Land, Russia, 2004.

John Cancalosi / Cross section of a fossilised ammonite (Cleoniceras sp) from the Albian stage of the Upper Early Cretaceous period, Mahajanga province, Madagascar