(Grozdilova, 1954) Eoendothyranopsidae Mississippian Eastern European Plain unknown Loeblich and Tappan identified by scientist 1 / FEU-1014732 | Toomey, 1961 Eoendothyranopsidae Mississippian American South unknown Loeblich and Tappan identified by scientist 2 / FEU-1014733 | (Chernysheva, 1948) Eoendothyranopsidae Mississippian unknown Loeblich and Tappan identified by scientist 3 / FEU-1014792 | (Chernysheva, 1948) Eoendothyranopsidae Mississippian Ural Mountains unknown Loeblich and Tappan identified by scientist 4 / FEU-1014793 |