''Didymocyrtis'' may refer to:
*
''Didymocyrtis'' (fungus), a Dothideomycetes incertae sedis genus
*
''Didymocyrtis'' (protist), a
Spumellaria
Spumellaria is an order of radiolarians in the class Polycystinea. They are ameboid protists appearing in abundance in the world's oceans, possessing a radially-symmetrical silica (opal) skeleton that has ensured their preservation in fossil rec ...
n protist genus in the family
Coccodiscidae and subfamily
Artiscinae
{{genus disambiguation