Class Echinoidea Rank Genus | Subclass Euechinoidea Family Cidaridae | |
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Similar Phymosoma, Stereocidaris, Echinocorys, Temnocidaris, Cidaris | ||
Tylocidaris is an extinct genus of echinoids that lived from the Early Cretaceous to the Eocene. Its remains have been found in Europe and North America.
References
Tylocidaris Wikipedia(Text) CC BY-SA