Yochelsonospira nauvooensis (FOSSIL) (A.H. Worthen, 1884 †)
Loxoplocus nelsonae (FOSSIL) Peel, 1975 † USA, Wisconsin, Fond du Lac
Ectomaria nieszkowskii (FOSSIL) (A. Schmidt, 1858 †) Estonia, Harju, Kernu
Yochelsonospira northviewensis (FOSSIL) (Weller, 1899 †)
Humiliworthenia nuda (FOSSIL) (E.F.R.K. Koken, 1900 †) China, Guizhou, Guiyang
Lophospira obliqua (FOSSIL) Ulrich & Scofield, 1897 † USA, Iowa, Clinton
Kawanamia onimarensis (FOSSIL) T. Kase, 1988 † Japan, Iwate
Ectomaria orientalis (FOSSIL) (J. Donald, 1906 †) United Kingdom, Scotland, South Ayrshire
Worthenia orientalis (FOSSIL) (F.A. Roemer, 1880 †) Indonesia, Padang Highlands
Paupospira oweni (FOSSIL) (Ulrich & Scofield,1897 †) USA, Iowa, Clinton
Lophospira ozakii (FOSSIL) Endo, 1935 † China, Liaoning, Dalian
Ectomaria pagoda (FOSSIL) (Salter, 1859 †) Canada, Quebec, Pontiac
Lophospira pagoda (FOSSIL) Kobayashi, 1930 † South Korea, Gangwon-do, Jeongseon
Worthenia pagoda (FOSSIL) Mansuy, 1914 † Cambodia, Phnom Anseh
Donaldiella pagodai (FOSSIL) (Endo, 1932 †) China, Liaoning, Liaoyang
Worthenia parvula (FOSSIL) Hoare & al., 1997 † USA, Ohio, Coshocton
Lophospira perangulata (FOSSIL) (J.W. Hall, 1847 †) Canada, Ontario, Kawartha Lakes
Proturritella piersalense (FOSSIL) (E.F.R.K. Koken, 1897 †) Estonia
Worthenia pilula (FOSSIL) Batten, 1989 † USA, Texas, Culberson
Worthenia planalveozona (FOSSIL) Batten, 1989 † USA, Texas, Culberson
Worthenia plutonis (FOSSIL) E.A.L. Kittl, 1894 † Italy, Veneto, Belluno
Worthenia praerupta (FOSSIL) Böhm, 1895 † Italy, Veneto, Belluno
Batteniella prantli (FOSSIL) Frýda & Manda, 1997 † Czech Republic, Prague
Ectomaria prisca (FOSSIL) (Billings, 1859 †) Russia, Chukotka
Lophospira producta (FOSSIL) Ulrich & Scofield, 1897 † USA, Tennessee, Bedford
Arjamannia pteronoides (FOSSIL) (Longst, 1924 †) UK, Scotland, South Ayrshire
Gyronema pulchellum (FOSSIL) Ulrich & Scofield, 1897 † USA, Iowa, Clinton
Longstaffia pulchra (FOSSIL) (F. McCoy, 1844 †) Canada, Ontario, Niagara
Eunema quadrisulcata (FOSSIL) Ulrich & Scofield, 1897 † Alaska, Seward Peninsula
Lophospira ramsayi (FOSSIL) Harper † UK, Wales
Batteniella rarissima (FOSSIL) (J. Perner, 1907 †) Czech Republic, Prague
Lophospira rectistriata (FOSSIL) W.J. Raymond, 1908 † USA, Vermont, Addison
Worthenia rhombifera (FOSSIL) Korner, 1937 † China, Yunnan, Pu'er
Ruedemannia robusta (FOSSIL) (Lindström, 1884 †) UK, England, Worcestershire
Gyronema rotalineum (FOSSIL) W.J. Raymond, 1906 †