A shelf of Silurian Calymene blumenbachi trilobite specimens

Calymene blumenbachi from the Wenlock Limestone curled up for protection

Dikelocephalina from the Tremadocian (Lower Ordovician) of Morroco

Selenopeltis from the Llanvirn (Middle Ordovician) of Wales

Paradoxides davidis, Middle Cambrian, St David’s Dyfed, Wales

The phyllocarid, Nahecaris, from the Devonian of southern Germany showing limbs and one of the valves of the hinged carapaces what protected the body

Horseshoe crab, Mesolimulus, from the Kimmeridgian Solenhofan limestone, Germany

Eurypterus tetragonophthalmus, Upper Silurian, from the Rootziküll beds on the island of Saaremaa (Oesel), Estonia

Eurypterus tetragonophthalmus, sections extracted to reveal the anatomy of the creature

Cyclocaris propinqua from the Kimmeridgian Solenhofan limestone, Germany

Barnacles from the Crag of Suffolk

Miocene barnacles, Balarus varians, from the Lower Miocene of Argentina

Typus sp. from the Westphalian Coal Measures at Bolsover Colliery, Derbyshire

The dragonfly Cymotophlebia longialata from the Kimmeridgian Solenhofen limestone, Germany