|Diagnosis|| Echinoida with:
|Range||Middle Eocene? Oligocene to Recent, tropical and temporate worldwide.|
|Remarks||Echinometridae are primarily distinguished on their globiferous pedicellarial structure. Parasalenia is an exception (it lacks the asymmetric lateral tooth on the blade of its globiferous pedicellariae), but is included in this family because of its ovate test. The group may be paraphyletic and is need of a detailed phylogenetic analysis.
Gray, J. E. 1855. An arrangement of the families of Echinida, with description of some new genera and species. Proceedings of the Zoological Society, London 1855, 35-39.