Delicatophycus alpestris, D. delicatula and D. canadensis are narrower and have protracted apices. Delicatophycus verena, described from a well in Egypt, is more elliptic in shape, larger in size, and lacks shorter median striae on the dorsal side.
LM scalebar = 10 µm
Length Range
23-46 µm
Width Range
5.1-7.6 µm
Striae in 10 µm
16-18 center (dorsal) up to 24 at the apices; 18-25 ventral side