| Grupp eller formation |
Period |
Anteckningar |
| Ballyadams formation |
Karbon |
|
| Ballysteen kalkstensformation |
Karbon |
|
|
Boyne Group / Feltrim Formation
|
Karbon |
|
|
Boyne Group / Slane Castle Formation
|
Karbon |
|
| Kolformning |
Karbon |
|
| Clashford House Formation |
Ordovicium |
|
| Clogrenan bildning |
Karbon |
|
| Cloonnamna Bildning |
Silur |
|
| Courtown formation |
Ordovicium |
|
| Dartry kalkstensformation |
Karbon |
|
| Drom Point Formation |
Silur |
|
| Duncannon-formationen |
Ordovicium |
|
|
Duncannon Group / Campile Formation
|
Ordovicium |
|
|
Duncannon Group /Portrane Limestone Formation |
Ordovicium |
|
|
Duncannon Group /Tramore kalkstensformation |
Ordovicium |
|
| Feltrim formation |
Karbon |
|
| Ferriters Cove Formation |
Silur |
|
|
Fingal Group / Lucan Formation
|
Karbon |
|
|
Fingal Group / Naul Formation
|
Karbon |
|
|
Fingal Group / Tober Colleen Formation
|
Karbon |
|
| Glencar kalkstensformation |
Karbon |
|
| Grange Allens formation |
Ordovicium |
|
|
Grangegeeth Group / Knockerk Formation
|
Ordovicium |
|
| Harrylock-formationen |
Devon |
|
| Hollyford-formationen |
Silur |
|
| Holmpatrick formation |
Karbon |
|
| Krokhuvud Formation |
Karbon |
|
| Kilbride formation |
Silur |
|
| Kilbride kalkstensformation |
Karbon |
|
|
Kilcoan Sands Formation
|
Krita
|
|
| Kildare kalkstensformation |
Ordovicium |
|
|
Kilmore Sandstone Group / Coomhola Formation
|
Kol , devon
|
|
| Kiltorcan formation |
Devon |
|
| Kiltorcan sängar Formation |
Devon |
|
| Knockerk formation |
Ordovicium |
|
| Körfältsbildning |
Karbon |
|
| Limerick kalkstensbildning |
Karbon |
|
| Lough Shee Mudrocks Formation |
Ordovicium |
|
| Lower Bricklieve Limestone Formation |
Karbon |
|
| Mullaghfin formation |
Karbon |
|
|
Murrisk Group / Mweelrea Formation
|
Ordovicium |
|
|
Navan Group / Liscartan Formation
|
Karbon |
|
|
Navan Group / Meath Formation
|
Karbon |
|
|
Navan Group / Moathill Formation
|
Karbon |
|
Ny Red Sandstone Group / Kingscourt Gypsum Formation |
Perm |
|
Ny Red Sandstone Group / Kingscourt Sandstone Formation
|
Trias |
|
| Gammal Red Sandstone Group/ Kiltorcan formation
|
Devon |
|
| Porter's Gate Formation |
Karbon |
|
|
Ribband Group / Booley Bay Formation
|
Kambrium |
|
| Tourmakeady Formation |
Ordovicium |
|
| Upper Bricklieve Limestone Formation |
Karbon |
|
| Upper Shawly Beds Formation |
Karbon |
|
| West Cork Sandstone Formation |
Karbon |
|
