Suborder
Dichograptina Lapworth, 1873
| Images | ||||||
|---|---|---|---|---|---|---|
| GIT 120-10 | Didymograptellus bifidus | Didymograptus bifidus (Hall, 1865) | Kunda Stage | ||||
| GIT 120-11 | Didymograptellus bifidus | Didymograptus bifidus (Hall, 1865) | Kunda Stage | ||||
| GIT 120-12 | Didymograptellus bifidus | Didymograptus bifidus (Hall, 1865) | Kunda Stage | ||||
| GIT 120-6 | Didymograptellus bifidus | Didymograptellus bifidus (Hall, 1865) | Kunda Stage | ||||
| GIT 120-7 | Didymograptellus bifidus | Didymograptus bifidus (Hall, 1865) | Kunda Stage | ||||
| GIT 120-8 | Didymograptellus bifidus | Didymograptus bifidus (Hall, 1865) | Kunda Stage | ||||
| TUG 1299-138 | Didymograptus | Didymograptus sp. | Lower Ordovician | ||||
| TUG 1594-4-1 | Phyllograptus angustifolius | Phyllograptus angustifolium Hall | Norra | Middle Ordovician | Caradoc | |||
| TUG 1594-4-2 | Phyllograptus angustifolius | Phyllograptus angustifolium Hall | Norra | Middle Ordovician | Caradoc | |||
| TUG 1619-25 | Clonograptus | Clonograptus sp. | Tremadocian | Türisalu kihistu |