nothia (foraminifera) nothia (foraminifera) nothia is an extinct genus of foraminifera described in 1964 by pflaumann, belonging to the subfamily bathysiphoninae and containing 5 species. nothia scientific classification domain: eukaryota clade: diaphoretickes clade: sar phylum: retaria subphylum: ectoreta infraphylum: foraminifera class: monothalamea order: astrorhizida suborder: astrorhizina superfamily: astrorhizoidea family: rhabdamminidae subfamily: bathysiphoninae genus: †nothiapflaumann (1964) type species nothia grilli(noth (1951)) species n. excelsa n. grilli n. latissima n. robusta n. subalpina