The plate measures 19.5 x 15 cm, while fossil sea urchins have a diameter of 10 mm without spikes. The plate is very thin but is neither glued nor restored.
With Aristoteles lantern !!! Name : Acrosalenia hemicidaroides Age : Jurassic , Bathonian Location : Landaville, Vosges , France The echinoid has a size of 2.8 cm without the spines .It is onto a slab of 13 x 9 cm and it hazs trhe spines.
With Aristoteles lantern !!! Name : Acrosalenia hemicidaroides Age : Jurassic , Bathonian Location : Landaville, Vosges , France The echinoid has a size of 2.6 cm without the spines .It is onto a slab of 7,4 x 4,5 cm and it hazs trhe spines.
!!extra rare!! NAME: ROLLIERICIDARIS BOULEMANENSIS AGE : JURASSIQUE ,Bajocien LOCATION : Boulemane,MOROCCO Echinoid is 48 mm .It was found onto a Dickesicidaris!