lamina irreperta lamina irreperta lamina is a monotypic fossil genus of agglutinated foraminifera belonging to the subfamily ammomarginulinae. it contains the sole species lamina irreperta, described in 1972. lamina irreperta scientific classification domain: eukaryota clade: diaphoretickes clade: sar phylum: retaria infraphylum: foraminifera class: globothalamea order: lituolida family: lituolidae genus: †laminavoloshina, 1972 species: †l. irreperta binomial name †lamina irrepertavoloshina, 1972 synonyms orbignyna (lamina) voloshina, 1972 (subgenus)