Class: Astrorhizata    Subclass: Astrorhizana    Order: Astrorhizida    Family: Psammosphaeridae
Psammosphaera Schulze, 1875

Psammosphaera bowmanni
(Heron-Allen and Earland, 1912)
identified by scientist   
Quaternary

Psammosphaera cava
Moreman, 1930
identified by scientist   
Ordovician
Arabian Peninsula

Psammosphaera fusca
Schulze, 1875
identified by M. Hesemann   
Quaternary
Greenland Sea

Psammosphaera irregularis
(Grzybowski, 1896)
identified by scientist   
Cretaceous
Barents Sea

Psammosphaera laevigata
White, 1928
type specimen   holotype
Cretaceous
Mexico and Middle America
   

Psammosphaera laevigata
White, 1928
identified by scientist   
Jurassic
off West Australia

Psammosphaera parva
Flint, 1889
identified by scientist   
Quaternary
Faroes

Psammosphaera parva
Flint, 1889
identified by scientist   
Quaternary
South of Iceland

Psammosphaera scruposa
(Berthelin, 1880)
identified by scientist   
Paleogene
Mediterranean

Psammosphaera testacea
Flint, 1899
identified by scientist   
Quaternary