Genus
Quadrithyris Havliček, 1957
| Images | ||||||
|---|---|---|---|---|---|---|
| GIT 130-236 | Quadrithyris sinuata | Quadrithyris sinuata Rubel, 1970 | Paadla Stage | holotype | |||
| GIT 130-237 | Quadrithyris sinuata | Quadrithyris sinuata Rubel, 1970 | Paadla Stage | ||||
| TUG 434-611 | Quadrithyris trio | Quadrithyris trio (Barrande, 1848) | Devonian | ||||
| TUG 434-612 | Quadrithyris trio | Quadrithyris trio (Barrande, 1848) | Devonian | ||||
| GIT 839-611 | biohermi alt bituminoosne kiht | Paadla Stage | ||||
| GIT 839-612 | biohermi alt bituminoosne kiht | Paadla Stage |