Large Cidaris urchin, Jurassic, Morocco

Description

SIZE (Picture scale cube=1cm): 35-45mm (Range)

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Name: Cidaris urchin

Age: Jurassic

Location: Morocco

Echinoids, or Sea Urchins as they are better known, have been present in our seas for around 450 million years, and are still largely present today. Their name derives from the Greek ‘Echin’ (‘Spiny’), referring to their protective spines, and ‘Ooid’ (Egg-Like) in reference to their globular shell, or ‘test’ as it is known. Echinoids are part of a much larger group known as the Echinoderms (‘Spiny-Skins’), which also includes the Asteroids (Starfish), Holothurians (Sea Cucumbers), Crinoids (Sea Lilies and Feather Stars) and the Ophiuroids (Brittle Stars). Sea urchins move slowly, crawling with their tube feet, and sometimes pushing themselves with their spines. They feed primarily on algae.

WILL DIFFER TO PHOTO: The image shows an example of the single specimen you will receive. This will be picked from our stock box graded and with a size approximately within the size range indicated. It will not be the same specimen shown in the photo, the colours, shape, size and style may vary as with any natural item. To guarantee the specimen you receive will be representative by that in photo, we would always recommend the Actual as seen version of this item.

Origin : Morocco.

Era : jurassic.

Unique : (May differ to photo).