Wikipedia
Micropygidae
The Micropygidae form a family of sea urchins within the Diadematoida order of echinoderms. The family contains two living species of the genus Micropyga and one, Kierechinus, known only from fossils. Morphologically, they are quite flat and have short, sharp spines, which are close to each other. They occur in the Indian and Pacific Oceans.
Genus
Author genus
Species
Author species
Age
|Kierechinus
Philip, 1963
–
–,–
Ypresian
|Micropyga
Agassiz, 1879
''M. tuberculata
Agassiz, 1879
extant
|''M. violacea
de Meijere, –
extant
Category:Diadematoida