JURASSIC ECHINOID (SEA URCHIN) 'MORTALITY PLATE' - 165 million years old - France
« backFOSSIL ECHINOID (SEA URCHIN) 'MORTALITY PLATE'
Hemicidaris luciensis
165 million years old
165 million years old
(Middle Jurassic - Bathonian stage)
Luc sur Mer, Calvados, France
Luc sur Mer, Calvados, France
A very impressive thin plate of Jurassic limestone crowded with beautifully preserved shells (tests) of tiny echinoids and their spines. Specimens like this are known as 'mortality plates'.
There are at least 20 complete echinoids present, as well as a large number of spines. A remarkable specimen.
The plate is robust, but it is only about one centimetre thick. It is presented in a lidded box.
Click on a picture for a larger image
Size: approx. 24 x 14 x 1 centimetres
Weight: 454 grams
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