Suborder

Cytherelliformes Skogsberg, 1920

Images
TUG 1041-11
Unisulcopleura | Unisulcopleura sp.
Kunda Stage
TUG 1045-16
Unisulcopleura punctosulcata | Unisulcopleura punctosulcata Schallreuter, 1993
Middle Ordovician
TUG 1045-30
Pinnatulites procera | Pinnatulites procerus (Kummerow, 1924)
Middle Ordovician
TUG 1109-21
Unisulcopleura tolmachovae | Unisulcopleura tolmachovae Melnikova, 1999
Billingen Stage
TUG 1109-22
Unisulcopleura irrete | Unisulcopleura irrete Schallreuter, 1993
Volkhov Stage
TUG 1118-13
Leperditella | Leperditella tolli
Kukruse Stage
TUG 1118-33
Leperditella | Leperditella tolli
Kukruse Stage
TUG 1118-41
Primitia | Primitia reticristata
Kukruse Stage
TUG 1118-64
Cytherellacea | Cytherellina ulrichi Bonnema
Kukruse Stage
TUG 1118-65
Cytherellacea | Cytherellina ruedemanni Bonnema
Kukruse Stage