Tylocidaris is an extinct genus of sea urchins that lived from the Early Cretaceous to the Eocene. Its remains have been found in Europe and North America.

Tylocidaris
Temporal range: Early Cretaceous-Eocene
Tylocidaris baltica, a Maastrichtian fossil from Denmark
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Order: Cidaroida
Family: Psychocidaridae
Genus: Tylocidaris
Pomel, 1883

References

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  • Fossils (Smithsonian Handbooks) by David Ward (Page 177)
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