Echinoid Collection

Tylocidaris clavigera, sea urchin
A fossil echinoid (Tylocidaris clavigera) from the Cretaceous rocks of Gravesend, England

Temnocidaris sceptrifera, fossil echinoid
Temnocidaris (Stereocidaris) sceptrifera, 5.5 cm in diameter, from the Cretaceous Chalk of Hertfordshire, England, apical view

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

Eucidaris tribuloides, sea urchin
Dead sea urchin (Eucidaris tribuloides) showing spines attached to test. From Carrie Bow Cay, Belize

Conulus albogalerus (Leske), Shepherds Crown echinoid
Shepherds Crown echinoid preserved in flint. Found in Gravel derived from Cretaceous Chalk, Surrey

Micraster coranguinum (Leske), shepherds crown echinoid
Shepherds crown echinoid (Micraster coranguinum Leske) preserved in flint. Specimen from the Cretaceous Upper Chalk, England

Conulus albogalerus (Leske), Shepherds Crown echinoid
Shepherds Crown echinoid preserved in flint. Found in Gravel derived from Cretaceous Chalk, Surrey

Flint handaxe incorporating fossil echinoid
Cast of handaxe from Middle Gravels of Swanscombe, Kent. Loaned by Merseyside Museums; NHM E6870

Clypeus ploti, fossil echinoid
Fossil echinoid also known as a poundstone from the Jurassic period Trigonia Grit, Aylworth, U.K

Clypeaster altus, a fossil echinoid
Clypeaster altus, 13 cm anterior to posterior, from the Miocene of Malta, oral view

Pteraster acicula, starfish
Pteraster acicula from the classification Asteroidea: Spinulosida: Pterasteridae. This species of starfish is found from Florida to the west Gulf of Mexico, below 260m

Eucidaris tribuloides, sea urchin
Dead sea urchin (Eucidaris tribuloides) showing spines attached to test. From Carrie Bow Cay, Belize

Echinocorys scutata Leske, fairy loaf echinoid
A fairy loaf echinoid from the Cretaceous Chalk, Coranguinum Zone, Northfleet, Kent

Tylocidaris clavigera (Konig), sea-urchin
This sea-urchin has highly characteristic club-like spines and is 80-83m yrs old. Specimen originates from the Upper Cretaceous Upper Chalk, S. England

Cheiracanthus murchisoni, fossil fish
This is an early jawed acanthodian fish from the Devonian rocks of Banffshire Scotland. Length 5 cms

Micraster coranguinum, echinoid
This a common heart-shaped Cretaceous sea-urchin originates from the Upper Chalk. This specimen is preserved in its original calcite and its length is around 6cm

Hemicidaris intermedi, Jurassic sea urchin
This specimen is particularly well-preserved retaining its spines where they fell around the animal as it died

Plegiocidaris coronata, sea urchin
A fossil echinoid or sea-urchin from the Jurassic rocks of Ulm, Germany

Echinocarys, echinoid hoax
A hoax fossil echinoid found at Piltdown, Sussex. Specimen now held at the Natural History Museum, London

Centrostephanus longispina, echinoid
The echinoid (Centrostephanus longispina). A recent echinoid found in the Mediterranean and East Atlantic. Specimen held at the Natural History Museum, London

Sea urchins
Plate 6 from Voyage sur la Venus (1840-1864) by A. A. Dupetit-Thouars

Jew Stones or sea urchin spines
Unidentified specimens of sea urchin spines possibly from Balanocidaris glandaria Leske, a Cretaceous echinoid found in Palestine

Diadema antillarum Philippi, sea-urchin
Diadema antillarum echinoid, a shallow-water regular echinoid with a formidable array of needle-sharp spines. This species tends to congregate into herds for added protection

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)

Archastropecten cotteswoldiae, starfish
A fossil starfish of the subclass Asteroidea from the Jurassic rocks of Gloucestershire, England

Sterna forsteri, Forsters tern, Sterna trudeaui, Trudeau s
Plate 408 from John James Audubons Birds of America, original double elephant folio (1835-38), hand-coloured aquatint. Engraved, printed and coloured by R. Havell (& Son), London

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