Genus
Tetrada Neckaja, 1958
| Images | ||||||
|---|---|---|---|---|---|---|
| TUG 1118-117 | Tetrada (Tallinnopsis) calkeri | Tallinnopsis calkeri | Kukruse Stage | ||||
| TUG 1118-118 | Tetrada (Tallinnopsis) calkeri | Tallinnopsis calkeri | Kukruse Stage | ||||
| TUG 1118-119 | Tetrada (Tallinnopsis) calkeri | Tallinnopsis calkeri | Kukruse Stage | ||||
| TUG 1118-120 | Tetrada (Tallinnopsis) calkeri | Tallinnopsis calkeri | Kukruse Stage | ||||
| GIT 138-149 | Kukruse Stage | |||||
| GIT 138-150 | Tetrada (Tetrada) memorabilis | Tallinnopsis memorabilis (Neckaja) | Jõhvi Substage | ||||
| GIT 138-151 | Tetrada (Tetrada) memorabilis | Tallinnopsis memorabilis (Neckaja) | Jõhvi Substage | ||||
| GIT 138-152 | Keila Stage | |||||
| GIT 138-153 | Keila Stage | |||||
| GIT 138-154 | Tetrada (Tallinnopsis) ordinata | Tallinnopsis iewica var, ordinata | Keila Stage | holotype |