Maretiidae
Maretiidae is a family of echinoderms belonging to the order Spatangoida.
Genera
Genera:Amoraster McNamara & Ah Yee, 1989Granobrissoides Lambert, 1920Gymnopatagus Döderlein, 1901Hemimaretia Mortensen, 1950Homolampas A.Agassiz, 1874Maretia Gray, 1855Mariania Airaghi, 1901Mazettia Lambert & Thiéry, 1915Murraypneustes Holmes, Yee & Krause, 2005Nacospatangus A.Agassiz, 1873Pycnolampas A.Agassiz & H.L.Clark, 1907Spatagobrissus H.L.Clark, 1923Tripatagus Zachos, 2012