Phymosomatoida

The Phymosomatoida are an order of sea urchins, found in Europe, North America, North Africa and the Middle East.

species of echinoderm (fossil)

Phymosoma is an extinct genus of echinoids that lived from the Cretaceous to the Eocene. Its remains have been found in Asia, Europe, and North America. thumb|left|Syngnathid and Phymosoma granulosum fossils at the Geological Museum in Copenhagen