Kalmykova, 1972 Staffellidae Lower Permian Ural Mountains unknown Loeblich and Tappan identified by scientist 1 / FEU-1014575 | (Dutkevich, 1934) Staffellidae Pennsylvanian Ural Mountains unknown Loeblich and Tappan identified by scientist 2 / FEU-1014576 | (Liem, 1976) Staffellidae Mississippian unknown Loeblich and Tappan identified by scientist 3 / FEU-1014578 | Leven, 1970 Staffellidae Lower Permian Eastern European Plain unknown Loeblich and Tappan identified by scientist 4 / FEU-1014779 | (Sheng, 1963) Staffellidae Middle Permian unknown Loeblich and Tappan identified by scientist 5 / FEU-1014799 | |||||
Lee, 1934 Staffellidae Middle Permian unknown Loeblich and Tappan identified by scientist 6 / FEU-1014800 | (Ozawa, 1925) Staffellidae Pennsylvanian unknown Loeblich and Tappan identified by scientist 7 / FEU-1014801 | Dunbar and Skinner, 1937 Staffellidae Upper Permian American South unknown Loeblich and Tappan identified by scientist 8 / FEU-1014803 | Chen, 1964 Staffellidae Middle Permian unknown Loeblich and Tappan identified by scientist 9 / FEU-1014804 | Liem, 1974 Staffellidae Pennsylvanian South East Asia unknown Loeblich and Tappan identified by scientist 10 / FEU-1014806 | |||||
Lee, 1934 Staffellidae Lower Permian unknown Loeblich and Tappan identified by scientist 11 / FEU-1014807 | Lee, 1934 Staffellidae unknown Loeblich and Tappan identified by scientist 12 / FEU-1014808 | (Abich, 1859) Staffellidae Lower Permian unknown Loeblich and Tappan identified by scientist 13 / FEU-1014811 |