Diadematidae is a family descending from the class Echinoidea, comprising sea urchins and snails.
| Genus
| Author Genus
| Species
| Author Species
| Age
|
| Astropyga
| Gray, 1825
| Astropyga radiata
| (Leske, 1778)
| Actual |
|
|
| Astropyga pulvinata
| (Lamarck, 1816)
| Actual |
|
|
| Astropyga magnifica
| Clark, 1934
| Actual |
| Centrostephanus
| Peters, 1855
| Centrostephanus asteriscus
| Agassiz & Clark,1907
| Actual |
|
|
| Centrostephanus coronatus
| (Verrill,1867)
| Actual |
|
|
| Centrostephanus fragile
| (Wiltshire in Wright,1882)
| Santonian Maastrichtian Danian |
|
|
| Centrostephanus longispinus
| Philippi,1845
| Actual |
|
|
| Centrostephanus nitidus
| Koehler,1927
| Actual |
| Chaetodiadema
| Mortensen, 1903
| Chaetodiadema granulatum
| Mortensen, 1903
| Actual |
|
|
| Chaetodiadema keiense
| Mortensen, 1903
| Actual |
|
|
| Chaetodiadema tuberculatum
| Clark, 1909
| Actual |
| Diadema
| Humpfreys, 1797
| Diadema palmeri
| Baker, 1967
| Actual |
|
|
| Diadema savignyi
| (Michelin, 1845)
| Actual |
|
|
| Diadema setosum
| (Leske, 1778)
| Actual |
|
|
| Diadema antillarum
|
| Actual |
|
|
| Diadema paucispinum
| (Agassiz, 1863)
| Actual |
|
|
| Diadema mexicanum
| (Agassiz, 1863)
| ActualA. |
|
|
| Diadema ascensionis
| (Mortensen, 1909)
| Actual |
| Echinodiadema
| Verrill, 1867
| Echinodiadema coronata
| Verrill, 1867
| Actual |
| Echinothrix
| Peters, 1853
| Echinothrix calamaris
| (Pallas, 1774)
| Actual |
|
|
| Echinothrix diadema
| (Linnaeus, 1758)
| Actual |
| Eodiadema
| -
| –
| –
| Lower Jurassic |
| Eremopyga
| Agassiz & Clark, 1908
| Eremopyga denudata
| (De Meijere, 1904)
| Actual |
| Goniodiadema
| Mortensen, 1939
| Goniodiadema mauritiense
| Mortensen, 1939
| Actual |
| Kamptosoma
| Mortensen, 1903
| –
| –
| Actual |
| Palaeodiadema
| Pomel, 1887
| –
| –
| Santonian, Maastrichtian Danian |
| Pedinothuria
| Louis, 1897
| Pedinothuria cidaroides
| Gregory, 1897
| Callovian Oxfordian |
| Trichodiadema
| Agassiz, 1863
| Trichodiadema rodgersii
| Agassiz, 1863
| Actual |