Miklukho-Maklay, 1963 Ivanovellidae Upper Devonian unknown Loeblich and Tappan identified by scientist 1 / FEU-1014011 | Petrova, 1981 Ivanovellidae Upper Devonian Ural Mountains unknown Loeblich and Tappan identified by scientist 2 / FEU-1014024 | (Pronina, 1969) Ivanovellidae Upper Silurian Ural Mountains unknown Loeblich and Tappan identified by scientist 3 / FEU-1014025 | Pronina, 1969 Ivanovellidae Upper Silurian Eastern European Plain unknown Loeblich and Tappan identified by scientist 4 / FEU-1014026 | Miklukho-Maklay, 1965 Ivanovellidae Upper Devonian Southern Siberian Mountains unknown Loeblich and Tappan identified by scientist 5 / FEU-1014031 | |||||