Chondrocidaris
Chondrocidaris is a genus of sea urchins of the family Cidaridae described in 1863 by Alexander Agassiz. There are two living species and several fossil species dating as far back as the Miocene.
;Living species:
;Extinct species:
- Chondrocidaris clarkii
- Chondrocidaris marianica
- ''Chondrocidaris problepteryx''