Kier (1966) included in this family all forms with imbricate test plating and only two columns of amb plates. The type species of the type genus is very poorly known, however, making diagnosis of this family difficult.
The following genera are probably members of this family but are based on such inadequate material as to be nomina dubia:
- Lepidocentrus Muller, 1857
- Koninckocidaris Dollo & Buisseret, 1888
- Lepidechinoides Olssen, 1912