Genus
Quadritia Schallreuter, 1966
| Images | ||||||
|---|---|---|---|---|---|---|
| TUG 1610-68 | Quadritia aluverensis | Polyceratella aluverensis | Keila Stage | DII | ||||
| TUG 1610-70 | Quadritia aluverensis | Polyceratella aluverensis | Keila Stage | DII | ||||
| TUG 1610-71 | Quadritia aluverensis | Polyceratella aluverensis | Keila Stage | DII | ||||
| GIT 270-106 | Quadritia aluverensis | Polyceratella aluverensis Sarv, 1959 | 133.7 | Keila Stage | |||
| GIT 270-86 | Quadritia (Krutatia) iunior | Quadritia (Krutatia) iunior Schallreuter, 1981 | 93.9 | Nabala Stage |