Description
Echinoids are sea urchins, they are members of the phylum Echinodermata, which also includes sea stars, sea cucumbers, brittle stars, and crinoids. Like other echinoderms they have fivefold symmetry (called pentamerism) and move by means of hundreds of tiny, transparent, adhesive "tube feet". Sea urchins or urchins are small, spiny, globular animals. They inhabit all oceans. Their shell, or "test", is round and spiny, typically from 3 to 10 centimetres (1.2 to 3.9 in) across. They move slowly, feeding mostly on algae.
These Hemiaster Echinoids fossils are cretaceous in age. They are ideal for fossil kits, fossil digs, and sluices.
Dimensions: Sizes range from 3/4"- 1 1/4" in diameter
Provenance: Sahara Desert, Morocco
Age: Cretaceous: 146-65 MYO
Type: Representative samples
Note: This fossil is only sold in boxes of 25kg/55lbs. The price listed is for 1 box.
