| Castrella (Nasonoviella) lutheri (Nasonov, 1917) | [with synonyms] | w | other taxonomic work | |
| Dalyellia (Scoparia) scoparia (Schmidt, 1858) | | w | latest taxonomic authority | |
| Dalyellia abursalis Ruebush, 1937 | | w | latest taxonomic authority | |
| Dalyellia benacensis Steinböck, 1932 | | w | latest taxonomic authority | |
| Dalyellia bicornis Nasonov, 1925 | | w | latest taxonomic authority | |
| Dalyellia bicoronaria Fulinski, 1933 | | w | latest taxonomic authority | |
| Dalyellia biwae Okugawa, 1930 | | w | latest taxonomic authority | |
| Dalyellia deses Riedel, 1932 | | w | latest taxonomic authority | |
| Dalyellia groenlandica Riedel, 1932 | | w | latest taxonomic authority | |
| Dalyellia incerta (Bohmig, 1902) | | w | latest taxonomic authority | |
| Dalyellia kessleri (Plotnikow, 1906) | | w | latest taxonomic authority | |
| Dalyellia kupelwieseri Meixner, 1915 | | w | latest taxonomic authority | |
| Dalyellia lugubris Reisinger, 1924 | | w | latest taxonomic authority | |
| Dalyellia lutheri Nasonov, 1917 | | w | latest taxonomic authority | |
| Dalyellia minima Riedel, 1932 | | w | latest taxonomic authority | |
| Dalyellia rheesi Graff, 1911 | | w | latest taxonomic authority | |
| Dalyellia rossi Graff, 1911 | | w | latest taxonomic authority | |
| Dalyellia sphyrocephala Steinböck, 1931 | | w | latest taxonomic authority | |
| Dalyellia striata (Plotnikow, 1905) | | w | latest taxonomic authority | |
| Fulinskiella sphyrocephala (Steinböck, 1931) | | w | latest taxonomic authority | |
| Microdalyellia beltrami (Gieysztor, 1931) | | w | latest taxonomic authority | |
| Microdalyellia bergi (Beklemischev, 1927) | | w | latest taxonomic authority | |
| Microdalyellia bicoronaria (Fulinski, 1933) | | w | latest taxonomic authority | |
| Microdalyellia blodgetti (Silliman, 1884) | | w | latest taxonomic authority | |
| Microdalyellia brevistyla (Eggers, 1925) | | w | latest taxonomic authority | |
| Microdalyellia chlynovica (Nasonov, 1919) | | w | latest taxonomic authority | |
| Microdalyellia cuspidata (Schmidt, 1861) | | w | latest taxonomic authority | |
| Microdalyellia dodgei (Graff, 1911) | | w | latest taxonomic authority | |
| Microdalyellia dubitativa (Sibiriakova, 1929) | [with synonyms] | w | latest taxonomic authority | |
| Microdalyellia eastmani (Graff, 1911) | | w | latest taxonomic authority | |
| Microdalyellia inflata (Okugawa, 1930) | | w | latest taxonomic authority | |
| Microdalyellia japonica (Okugawa, 1930) | | w | latest taxonomic authority | |
| Microdalyellia koiwi (Eggers, 1925) | | w | latest taxonomic authority | |
| Microdalyellia oryzae (Nasonov, 1929) | | w | latest taxonomic authority | |
| Microdalyellia quadridens (Bohmig, 1898) | | w | latest taxonomic authority | |
| Microdalyellia quadridensoides (Fuhrmann, 1914) | | w | latest taxonomic authority | |
| Microdalyellia rossi karisalmica (Nasonov, 1917) | | w | latest taxonomic authority | |
| Microdalyellia taurica (Nasonov, 1923) | | w | latest taxonomic authority | |
| Microdalyellia thienemanni (Reisinger, 1933) | | w | latest taxonomic authority | |
| Microdalyellia transilvana (Paradi, 1882) | | w | latest taxonomic authority | |
| Microdalyellia triangulata (Robeson, 1931) | | w | latest taxonomic authority | |
| Microdalyellia triquetra (Fuhrmann, 1894) | | w | latest taxonomic authority | |
| Microdalyellia tsurugae (Nasonov, 1929) | [with synonyms] | w | other taxonomic work | |
| Microdalyellia zykovi (Nasonov, 1919) | | w | latest taxonomic authority | |
| Dalyellia Scopariella Ruebush & Hayes, 1939 | | w | primary taxonomic authority (describer) | |
| Dalyellia rossi tennesseensis Ruebush & Hayes, 1939 | | w | primary taxonomic authority (describer) | |
| Dalyelliidae Gieysztoria Ruebush & Hayes, 1939 | [with synonyms] | w | primary taxonomic authority (describer) | |
| Gieysztoria (Marcusiella) okugawai (Ruebush & Hayes, 1939) | [with synonyms] | w | primary taxonomic authority (describer) | |
| Microdalyellia complicata Ruebush & Hayes, 1939 | | w | primary taxonomic authority (describer) | |
| Microdalyellia okugawai Ruebush & Hayes, 1939 | | w | primary taxonomic authority (describer) | |
| Microdalyellia rossi tennesseensis (Ruebush & Hayes, 1939) | | w | primary taxonomic authority (describer) | |
| Microdalyellia tennesseensis (Ruebush & Hayes, 1939) | [with synonyms] | w | primary taxonomic authority (describer) | 136-146, 149, f. 1-4 |
| Provortex virginiensis Ruebush & Hayes, 1939 | | w | primary taxonomic authority (describer) | |
| Microdalyellia diadema (Hofsten, 1907) | | w | other taxonomic work | |
| Gieysztoria taurica (Nasonov, 1923) | [with synonyms] | w | other taxonomic work | 151 |
| Gieysztoria minima (Riedel, 1932) | [with synonyms] | w | other taxonomic work | 150 |
| Gieysztoria inflata (Okugawa, 1930) | [with synonyms] | w | other taxonomic work | 150 |
| Gieysztoria bergi (Beklemischev, 1927) | [with synonyms] | w | other taxonomic work | 151 |
| Gieysztoria lugubris (Reisinger, 1924) | [with synonyms] | w | other taxonomic work | 151 |
| Microdalyellia ruebushi Luther, 1955 | [with synonyms] | w | other taxonomic work | 149 |
| Microdalyellia Microdalyellia Reubush & Hayes, 1939 | | w | primary taxonomic authority (describer) | 147 |
| Microdalyellia Gieysztoria Ruebush & Hayes, 1939 | | w | primary taxonomic authority (describer) | 149 |
| Gieysztoria cuspidata (Schmidt, 1861) | [with synonyms] | w | latest taxonomic authority | |
| Gieysztoria macrovariata (Weise, 1942) | [with synonyms] | w | latest taxonomic authority | |
| Gieysztoria beltrani (Gieysztor, 1931) | [with synonyms] | w | latest taxonomic authority | |
| Gieysztoria pavimentata (Beklemischev, 1926) | [with synonyms] | w | latest taxonomic authority | |
| Gieysztoria rubra (Fuhrmann, 1894) | [with synonyms] | w | latest taxonomic authority | |
| Gieysztoria pseudoblodgetti Luther, 1955 | [with synonyms] | w | other research on this sp. | 145, 150, Syst |
| Gieysztoria sibirica (Plotnikow, 1905) | [with synonyms] | w | other taxonomic work | |
