Tylocidaris
(ty-lo-SID-er-is | 'Knotted Tiara')
(Name refers to the unique appearance of the their distinctive 'crown' of spines)
 



 
This life form is globally extinct
DB ID: 8037

Tylocidaris Fossil
Louisville Fossils
https://louisvillefossils.blogspot.com/2023/07/tylocidaris-clavigera-sea-urchin-fossil.html

Tylocidaris Collectibles Gallery

Grolier, Inc. 1988 Treasures of the Earth Educational Cards