Class Echinoidea Order Phymosomatoida | Rank Genus | |
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Similar Echinocorys, Tylocidaris, Hemiaster, Micraster, Stereocidaris | ||
Prize phymosoma
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.
References
Phymosoma Wikipedia(Text) CC BY-SA