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
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| Tylocidaris baltica, a Maastrichtian fossil from Denmark | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Order: | Cidaroida |
| Family: | Psychocidaridae |
| Genus: | †Tylocidaris Pomel, 1883 |
References edit
- Fossils (Smithsonian Handbooks) by David Ward (Page 177)
External links edit
- Tylocidaris in the Paleobiology Database
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