Type species. Stephanosmilia perlata de Fromentel, 1862, Aptian of France.
Diagnosis. Solitary, trochoid to subcylindrical, fixed. Septa compact, bilaterally to radially arranged, with coarse granules laterally. Columella sublamellar to substyliform. Pali in two crowns in front of S1 and S2. Endothecal dissepiments sparse. Wall septothecal.