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St. Cuthberts Beads - rosary made from crinoid columnalsUnidentified crinoid columnals used as beads for jewellery. Specimens from the Carboniferous Yoredale Shales, Ribblehead, Yorkshire
CrinoidsCriniods lived during the Lower Jurassic period. Their modern equivalents include echinoderms such as seaurchins, starfish and sea cucumbers
Dimerocrinus, fossil crinoidDimerocrinus, a small stemmed crinoid (sea-lily) of Silurian age. The long stem supports a 1.8 cm high crown mostly consisting of the arms employed in feeding
Actinocrinites sp. a fossil crinoidActinocrinites has a calyx which is conical and elongated and a rigid, domed tegmen made of numberous small plates. The calyx is monocyclic, I.e. a basal circle of plates supports the radial circlet
Ailsacrinus prattii, 3.4 cm wide, from the Jurassic of Bath, England, showing the underside of the calyx and arms
Isocrinus robustus, a fossil crinoidThe stalked crinoid Isocrinus robustus, 14 cm tall, from the Lower Jurassic of Gloucestershire, England, showing the calyx and arms
Starstones - columnals of isocrinid crinoids
A group of fragments of fossil crinoidsWatercolour of a group of fragments of fossil crinoids (feather-stars or sea-lilies) by Sarah Stone (c. 1760-1844) from the collection of Sir Ashton Lever
Fossil CrinoidWatercolour of a fossil crinoid by Sarah Stone (c. 1760-1844) from the collection of Sir Ashton Lever
Uintacrinus, stemless crinoidA black and white photograph of a stemless crinoid, which dates from the Cretaceous. Crinoids have five or more feathery arms radiating from a central disc
Crinoidal limestone
Dizgocrinus mon, fossil crinoidThis fossil crinoid or sea-lily originates from the limestones of Keokuk, Lowa, USA
Temnocrinus tuberculatus (Miller)A fossil specimen of Temnocrinus tuberculatus (Miller), a paleozoic crinoid dating back to the Silurian (440 million years ago), discovered in the Wenlock Limestone bed, Dudley, Worcestershire, UK
Protaxocrinus tuberculatus (Miller)A fossil specimen of Protaxocrinus tuberculatus (Miller), a crinoid, dating back to the Silurian period (440 million years ago), discovered in the Wenlock Limestone bed, Dudley, Worcestershire, UK
Myedactylus flecheri (Salter)A fossil specimen of Myelodactylus fletcheri (Salter) dating back to the Silurian period (440 million years ago), discovered in Wenlock Limestone bed, Dudley, Worcestershire, UK
Pentacrinites, crinoidPentacrinites is a fossil crinoid from the Jurassic. Crinoids are ancient, marine organisms. The majority have long stalks anchored to the bottom