Waters, 1927 Lituolidae Pennsylvanian Lower Pennsylvanian Unknown unknown SINMNH type specimen holotype 1 / FEU-1006767 | Waters, 1927 Lituolidae Pennsylvanian Lower Pennsylvanian unknown type specimen holotype 2 / FEU-1019996 | Galloway and Ryniker, 193 Hemigordiopsidae Pennsylvanian Lower Pennsylvanian American South unknown AMNH type specimen holotype 3 / FEU-1008514 | Galloway and Ryniker, 193 Hemigordiopsidae Pennsylvanian Lower Pennsylvanian American South unknown AMNH type specimen paratype 4 / FEU-1008515 | Galloway and Ryniker, 193 Hemigordiopsidae Pennsylvanian Lower Pennsylvanian American South unknown AMNH type specimen paratype 5 / FEU-1008516 | |||||
Galloway and Ryniker, 193 Hemigordiopsidae Pennsylvanian Lower Pennsylvanian unknown type specimen holotype 6 / FEU-1019924 | Galloway and Ryniker, 193 Spirillinidae Pennsylvanian Lower Pennsylvanian American South unknown AMNH type specimen holotype 7 / FEU-1008513 | Galloway and Ryniker, 193 Spirillinidae Pennsylvanian Lower Pennsylvanian American South unknown AMNH type specimen paratype 8 / FEU-1008521 | Galloway and Ryniker, 193 Spirillinidae Pennsylvanian Lower Pennsylvanian American South unknown AMNH type specimen holotype 9 / FEU-1008512 | Galloway and Ryniker, 193 Polymorphinidae Pennsylvanian Lower Pennsylvanian American South unknown AMNH type specimen holotype 10 / FEU-1008520 | |||||
Galloway and Ryniker, 193 Tetrataxidae Pennsylvanian Lower Pennsylvanian American South unknown AMNH type specimen holotype 11 / FEU-1008519 | Galloway and Ryniker, 193 Tetrataxidae Pennsylvanian Lower Pennsylvanian American South unknown AMNH type specimen paratype 12 / FEU-1008522 | Galloway and Ryniker, 193 Endothyridae Pennsylvanian Lower Pennsylvanian American South unknown AMNH type specimen holotype 13 / FEU-1008517 | Galloway and Ryniker, 193 Endothyridae Pennsylvanian Lower Pennsylvanian American South unknown AMNH type specimen paratype 14 / FEU-1008518 | Galloway and Ryniker, 193 Endothyridae Pennsylvanian Lower Pennsylvanian American South unknown AMNH type specimen paratype 15 / FEU-1008523 | |||||