Genus
Ctenentoma Schmidt, 1941
| Images | ||||||
|---|---|---|---|---|---|---|
| TUG 1041-10 | Ctenentoma | Ctenentoma cf. umbonata (Steusloff, 1895) | Volkhov Stage | ||||
| TUG 1045-11 | Middle Ordovician | |||||
| TUG 1305-17 | Ctenentoma levis | Steusloffia levis (Sarv, 1959) | Kunda Stage | ||||
| TUG 1305-18 | Ctenentoma levis | Steusloffia levis (Sarv, 1959) | Kunda Stage | ||||
| TUG 1305-19 | Ctenentoma levis | Steusloffia levis (Sarv, 1959) | Kunda Stage |