Eucidaris tribuloides was first described and classified by Jean Baptiste Lamarck in 1816 as Cidarites tribuloides.
The modern classification stems from the echinoid treatises by … See more

The slate pencil urchin can be found on both sides of the Atlantic, and throughout the Caribbean. On the western side of the Atlantic, the slate … See more

Reproduction in E. tribuloides seems to be sensitive to seasonal cycles, solar cycles, and the lunar cycle. In the Florida Keys, E. tribuloides was … See more

• Photos of Eucidaris tribuloides on Sealife Collection See more

When its development is contrasted to the cidaroid sister subclass Euechinoidea, E. tribuloides becomes a very interesting organism from the standpoint of developmental and evolutionary biology. In euechinoid embryonic development, e.g. in the See more

• Erkenbrack EM (Nov 2016). "Divergence of ectodermal and mesodermal gene regulatory network linkages in early development of sea … See more