Haeckel, 1887
Diagnosis
Shell ovate, spindle-shaped, to nearly spherical, of solid porcellanous structure. A few pores at bases of hollow radial legs, placed symmetrically around main axis and mouth. Surface smooth or spiny, not panelled or tabulate.
Genera treated:
Genus Tuscarantha
Genus Tuscaretta
Genus Tuscarilla
Genus Tuscarora