Superfamily
Drepanellacea Ulrich et Bassler, 1923
| Images | ||||||
|---|---|---|---|---|---|---|
| TUG 1045-14 | Laterophores ansiensis | Laterophores ansiensis (Gailite, 1971) | Middle Ordovician | ||||
| TUG 1118-84 | Bollia | Bollia minor var. ornata Krause | Kukruse Stage | ||||
| TUG 1119-84 | Bollia | Bollia auricularis | Wenlock | Mulde Beds | ||||
| TUG 1119-85 | Bollia | Bollia auricularis | Wenlock | Mulde Beds | ||||
| TUG 1119-86 | Bollia | Bollia auricularis | Wenlock | Mulde Beds | ||||
| TUG 1770-5-1 | Aruküla Stage | holotype | ||||
| TUG 1770-5-2 | Aruküla Stage | holotype | ||||
| TUG 1770-6 | Aruküla Stage | |||||
| TUG 1820-15 | 748 | Pirgu Stage | Jelgava formation | ||||
| GIT 270-163 | Drepanella pauxilla | Drepanella? pauxilla Gailite, 1970 | 419 | Porkuni Stage |