Group or Formation | Period | Notes |
---|---|---|
Bardahessiagh Formation | Ordovician | |
Blackstokes Limestone Formation | Carboniferous | |
Blackwater Limestone Formation | Carboniferous | |
Carrickaness Sandstone Formation | Carboniferous | |
Chalk Marl Formation | Cretaceous | |
Glauconitic Chalk Formation | Cretaceous | |
Glencar Formation | Carboniferous | |
Killey Bridge Formation | Ordovician | |
Lias Formation | Jurassic | |
Lias Group/Waterloo Mudstone Formation | Jurassic | |
Limehill Beds Formation | Silurian | |
Maydown Limestone Formation | Carboniferous | |
Pernarth Group/Westbury Formation | Triassic | |
Tirnaskea Formation | Ordovician | |
Waterloo Formation | Jurassic | |
White Limestone Formation | Cretaceous |