Crinozoa Collection

Extinct marine reptiles
Sheet 1 of a series of posters called Extinct Animals by Benjamin Waterhouse Hawkins c. 1862. This collection of marine reptiles lived during the Jurassic period between 200

St. Cuthberts Beads - rosary made from crinoid columnals
Unidentified crinoid columnals used as beads for jewellery. Specimens from the Carboniferous Yoredale Shales, Ribblehead, Yorkshire

Crinoids
Criniods lived during the Lower Jurassic period. Their modern equivalents include echinoderms such as seaurchins, starfish and sea cucumbers

Dimerocrinus, fossil crinoid
Dimerocrinus, 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

Cretaceous chalk seafloor
An artists impression of a Cretaceous (144 to 65 million years ago) hard chalk seafloor, where an ammonite floats above crinoids, sea urchins, brachiopods, molluscs, and a lobster

Plesiosaurus, Telesaurus, Ichthyosaurus, Pentacrinites, Ammo
Sheet 1 of a series of posters called Extinct Animals by Benjamin Waterhouse Hawkins c. 1862. This collection of marine reptiles lived during the Jurassic period between 200 and 145 million years ago

Chalk sea diorama
Diorama of Cretaceous (144 to 65 million years ago) sea floor chalk deposits, and various cephalopods

Actinocrinites sp. a fossil crinoid
Actinocrinites 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 crinoid
The stalked crinoid Isocrinus robustus, 14 cm tall, from the Lower Jurassic of Gloucestershire, England, showing the calyx and arms

Carboniferous crinoid garden
Artists impression of Carboniferous (354 to 290 million years ago) underwater crinoid garden

Starstones - columnals of isocrinid crinoids

Bathycrinus Aldrichamus, drawn by Wild (1873)
Wilds Drawing, figured in Volume 2 of Wyville Thompsons Narrative in the Retport. Title Bathycrinus Aldrichamus

A group of fragments of fossil crinoids
Watercolour 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 Crinoid
Watercolour of a fossil crinoid by Sarah Stone (c. 1760-1844) from the collection of Sir Ashton Lever

Uintacrinus, stemless crinoid
A 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

Silurian Wenlock sea
An artists impression of the Wenlock (430.4 - 424 million years ago) sea with trilobites, corals, and crinoids

Crinoidal limestone

Dizgocrinus mon, fossil crinoid
This fossil crinoid or sea-lily originates from the limestones of Keokuk, Lowa, USA

Carboniferous limestone sea
Bridget Kempsters impression of a shallow coral Carboniferous (354 to 290 million years ago) limestone sea, depicting fish and an abundance of crinoids and coral

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

Archaeocrinus microbasalis, sea lily
Cast of a fossil sea lily from Canada, is 458-443 million years old from the Late Ordovician. On display in the From the Beginning, Gallery 63, Earth Galleries at the Natural History Museum, London

Pentacrinites fossilis, crinoid
Crinoids are ancient, marine organisms. Pentacrinites fossilis was unusual in that it lived suspended from floating driftwood (seen here attached to a log)

Pentacrinites, crinoid
Pentacrinites is a fossil crinoid from the Jurassic. Crinoids are ancient, marine organisms. The majority have long stalks anchored to the bottom

Silurian seascape

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