Sphenoderia macrolepis from Chatelain et al, 2013
Sphenoderia macrolepis Leidy, 1979
Diagnosis: Test small, oviform, with a pair of large plates on each side and a number of other smaller plates; the large plates are elliptic and transversely disposed; aperture linear, neck conical in side view.
Dimensions: Length 27-45 µm.
Ecology: in Sphagnum. Not common.