Galeripora marichusae  Useros et al., 2023

Diagnosis: Smooth test, without ridges or hollows and with a discoid, flattened shape. Composed of small building units surrounded by an organic cement. The aperture is large and round, invaginated and bordered with a lip, with several small pores surrounding it.

Dimensions: According to Useros et al. (2023): Shell diameter 103—150 μm; aperture diameter 36—57 μm, aperture diameter with rim 43—65 μm; height 23—28 μm,.

Habitat: Aquatic, variable salinity (4 to 19 g/L). On the sediment of athalassohaline lakes. In culture, they can survive at a salinity of 50 g/L.

Geographical distribution: Lake Pétrola, Albacete Province, Castilla la Mancha, Spain (38º50′N,1º33′W).

Remarks: Galeripora marichusae can be diagnosed by its morphometric characteristics. Its flat profile and numerous apertural pores are typical for the G. discoides group (González Miguéns et al. 2022). Its diameter is situated between G. naiadis and G. polypora, although with some degree of overlapping. This is the only species of the group found in athalassohaline environments to date.