Genus
Sigmoopsis Henningsmoen, 1953
| Images | ||||||
|---|---|---|---|---|---|---|
| TUG 1120-19 | Sigmoopsis (Sigmoopsis) cornuta | Ceratopsis platyceras n. sp. | Kukruse Stage | CII | holotype | |||
| TUG 1610-46 | Sigmoopsis (Sigmoopsis) cornuta | Sigmoopsis cornuta | Keila Stage | DII | ||||
| TUG 1610-7 | Sigmoopsis rostrata | Sigmoopsis rostrata | Keila Stage | DII | ||||
| TUG 1610-8 | Sigmoopsis rostrata | Sigmoopsis rostrata | Keila Stage | DII | ||||
| TUG 1610-9 | Sigmoopsis rostrata | Sigmoopsis rostrata | Keila Stage | DII | ||||
| GIT 270-113 | Sigmoopsis granulata | Sigmoopsis granulata Sarv, 1956 | 44.1 | Oandu Stage | |||
| GIT 307-23 | Sigmoopsis granulata | Sigmoopsis granulata (Sarv, 1956) | |||||
| GIT 657-24 | Sigmoopsis platyceras | Sigmoopsis platyceras (Öpik, 1937) | 26.84 - 26.9 | Kukruse Stage | |||
| GIT 657-27 | Sigmoopsis platyceras | Sigmoopsis platyceras (Öpik, 1937) | 27.12 - 27.18 | Kukruse Stage | |||
| GIT 657-39 | Sigmoopsis platyceras | Sigmoopsis platyceras (Öpik, 1937) | 27.18 - 27.26 | Kukruse Stage |