Ninella is a genus of fusulinicean forams from the Lower Carboniferous included in the family Ozawainellidae and subfamily Pseudostaffellinae.
Ponomarjova. G. Yu.. New Endothyrids (Foraminifera) from the Upper Visean of the Northern Ural Mountains. Paleontological Journal. March 2009. 43. 2. 129–133. 10.1134/S0031030109020026.