Sphaerogypsina peruviana (Berry, 1929)
kingdom: Chromista >
phylum: Foraminifera d'Orbigny, 1826 >
subclass: Rotaliana Mikhalevich, 1980 >
order: Rotaliida Lankester, 1885 >
superfamily: Acervulinoidea Schultze, 1854 >
family: Acervulinidae Schultze, 1854 >
genus: Sphaerogypsina Galloway, 1933 >
[1]
Berry, W. (1929). Shorter contributions to the paleontology of the Eocene of northwestern Peru: I, Solitary corals. II, Brachiopods. III, Foraminifer Gypsina. Journal of the Washington Academy of Sciences, Vol. 19, No. 12 (June 19, 1929), pp. 235–240. https://www.marinespecies.org/foraminifera/aphia.php?p=sourcedetails&id=364261
[2]
Popescu, Gh.,. (1982). Popescu, Gh., 1982. Note on the foraminifer Sphaerogypsina Galloway. Dări de Seamă ale Institutul de Geologie şi Geofizică 67(3), 115-121, Bucureşt. https://www.marinespecies.org/foraminifera/aphia.php?p=sourcedetails&id=386493