IRMNG Taxon list
Palaeostomocystis Deflandre, 1935 †Palaeostomocystis apiculata Cookson & Eisenack †Palaeostomocystis cretacea (O. Wetzel, 1933) Deflandre, 1937 †Palaeostomocystis cylindrica Cookson & Eisenack †Palaeostomocystis decora Deflandre, 1945 †Palaeostomocystis globosa Louwye, 1999 †Palaeostomocystis granulosa I.C. Cookson & A. Eisenack †Palaeostomocystis minor Jiabo, 1978 †Palaeostomocystis oblanga Deflandre, 1945 †Palaeostomocystis ovata (Wilson, 1967) Eisenack et al., 1973 †Palaeostomocystis pachytheca Cookson & Eisenack, 1971 †Palaeostomocystis pulchella Conrad, 1941 †Palaeostomocystis punctulosa Deflandre, 1941 †Palaeostomocystis reticulata Deflandre, 1937 †Palaeostomocystis sinuosa Cookson & Eisenack †Palaeostomocystis sphaerica Deflandre, 1937 †
