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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Orme, A.R. | 1966 | Quaternary changes of sea-level in Ireland | Journal | Trans. Inst. Brit. Geogr. | Details... |
| Orr, J. | 1905 | Report of the Geological Section | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Orr, J. | 1912 | Local fossils and their correlation to recent types | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Orr, J. | 1914 | Report of the Geological Section | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Oswald, D.H. | 1955 | The Carboniferous rocks between the Ox Mountains and Donegal Bay | Journal | J. Geol. Soc. Lond. | Details... |
| Owens, B., Gueinn, K.J. & Cameron, I.B. | 1977 | A Tournaisian miospore assemblage from the Altagoan Formation (Upper Calciferous Sandstone), Draperstown, Northern Ireland | Journal | Pollen Spores | Details... |
| Padget, P. | 1951 | The geology of the Clogher-Slieve Beagh area, Co. Tyrone | Journal | Sci. Proc. R. D. S. | Details... |
| Padget, P. | 1952 | Carboniferous beds at Kildress, Co. Tyrone | Journal | Ir. Nat. J. | Details... |
| Padget, P. | 1953 | The stratigraphy of Cuilcagh, Ireland | Journal | Geol. Mag. | Details... |
| Palmer, D. & Rickards, R.B. | 1981 | Graptolites | Book | | Details... |
| Palmer, J.A.S. | 1923 | Thracia pubescens near Dublin | Journal | Ir. Nat. | Details... |
| Parkes, M.A. | 1996 | The fossil collections of the Geological Survey of Ireland | Journal | Ir. Nat. J. | Details... |
| Parkin, J. | 1976 | The geology of the Foze Rocks, Co. Kerry: a review | Journal | Ir. Nat. J. | Details... |
| Patrickson, S. | 1833 | A descriptive list of the dykes appearing on the shore which skirts the Mourne Mountains, and numbered from Thomas' Mountain near Warren Point | Journal | J. Geol. Soc. Dubl. | Details... |
| Patterson, E.M. | 1941 | Caledonian and Tertiary dykes in County Down | Journal | Ir. Nat. J. | Details... |
| Patterson, E.M. | 1943 | Late-stage veins in the cone-sheet of Bloody Bridge, Mourne Mountains | Journal | Ir. Nat. J. | Details... |
| Patterson, E.M. | 1943 | Age relationships in a Mourne granite quarry | Journal | Ir. Nat. J. | Details... |
| Patterson, E.M. | 1944 | The olivine-gabbro of Ardtrea, County Tyrone | Journal | Ir. Nat. J. | Details... |
| Patterson, E.M. | 1944 | Examination of a dyke of microdiorite occurring in biotite-hornfels at Altnadua Mountain, Castlewellan, Co. Down | Journal | Ir. Nat. J. | Details... |
| Patterson, E.M. | 1946 | The Tertiary coal of Craignahulliar, Portrush | Journal | Ir. Nat. J. | Details... |
2035 references found.