Hemicidaris

Hemicidaris; Temporal range: Middle Jurassic-Early Cretaceous
	Hemicidaris intermedia fossil from France in Cosmocaixa, Barcelona.
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Echinoidea
Order:	Hemicidaroida
Genus:	Hemicidaris; Agassiz, 1838

Last updated July 19, 2025

Hemicidaris is an extinct genus of echinoids that lived from the Middle Jurassic to the Early Cretaceous. Its remains have been found in Africa, Asia, and Europe.

References

Fossils (Smithsonian Handbooks) by David Ward (Page 178)

External links

Hemicidaris in the Paleobiology Database

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Hemicidaris Temporal range: Middle Jurassic-Early Cretaceous

Hemicidaris intermedia fossil from France in Cosmocaixa, Barcelona.
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Echinoidea
Order:	Hemicidaroida
Genus:	Hemicidaris Agassiz, 1838