Genus
Tetrada Neckaja, 1958
| Images | ||||||
|---|---|---|---|---|---|---|
| GIT 140-88 | Tetrada (Perplana) bisulcata | Neotsitrella bisulcata Sarv, 1963 | 322 | Keila Stage | ? | |||
| GIT 140-89 | Tetrada (Perplana) bisulcata | Neotsitrella bisulcata Sarv, 1963 | 322 | Keila Stage | ? | |||
| GIT 140-90 | Tetrada (Perplana) bisulcata | Neotsitrella bisulcata Sarv, 1963 | 322 | Keila Stage | ? | |||
| GIT 140-91 | Tetrada (Perplana) bisulcata | Neotsitrella bisulcata Sarv, 1963 | 322 | Keila Stage | ? | |||
| GIT 140-92 | Tetrada (Perplana) bisulcata | Neotsitrella bisulcata Sarv, 1963 | 322 | Keila Stage | ? | |||
| GIT 140-93 | Tetrada (Perplana) bisulcata | Neotsitrella bisulcata Sarv, 1963 | 322 | Keila Stage | ? | |||
| TUG 1610-102 | Tetrada (Tetrada) grandis | Tetrada grandis | Keila Stage | DII | ||||
| TUG 1610-27 | Tetrada (Tetrada) memorabilis | Tetrada memorabilis | Keila Stage | DII | ||||
| TUG 1610-28 | Tetrada (Tetrada) memorabilis | Tetrada memorabilis | Keila Stage | DII | ||||
| TUG 1610-44 | Tetrada (Tetrada) krausei | Tetrada krausei | Keila Stage | DII |