Genuine Fossil Edrioasteroids for Sale – Echinoderms

Genuine Fossil Edrioasteroids for Sale. Edrioasteroidea is an extinct class of echinoderms.

The living animal would have resembled a pentamerously symmetrical disc or cushion.

They were obligate encrusters and attached themselves to inorganic or biologic hard substrates (frequently hardgrounds or brachiopods).

A 507 million year old species, Totiglobus spencensis, is actually the first known echinoderm adapted to live on a hard surface.

This was after the soft microbial mats that covered the sea floor were destroyed in the Cambrian substrate revolution