| Middle Eocene ostracodes of the Qattamiya area, northwest Eastern Desert, Egypt: Systematics, biostratigraphy and paleobiogeography A ShAhIN, O El Halaby, S El Baz Revue de Paléobiologie 27 (1), 123-157, 2008 | 21 | 2008 |
| Middle Eocene benthonic foraminiferal biostratigraphy and paleoenvironment at the Qattamia area, northern Eastern Desert, Egypt. Egypt A Shahin, A Bassal, O El-Halaby, S El-Baz J. Paleontol 7, 29, 2007 | 13 | 2007 |
| Comparative studies on some Recent, nearshore foraminifera from the Mediterranean coasts of Egypt and Greece OM El-Halaby Unpublished MSc thesis, Faculty of Science, Ain Shamas University, 1975 | 9 | 1975 |
| Comparative ecologic studies on recent and Pleistoceneforaminifera from Egyptian coasts OM El-halaby Unpublished Ph. D. Thesis, Ain Shams University, Cairo, 1-271, 1993 | 7 | 1993 |
| Taxonomy and ecology of recent foraminiferal species in the Hurghada offshore area O El-Halaby Annals. Geological Survey of Egypt 22, 193-249, 1999 | 5 | 1999 |
| Comparative studies on the distribution of some Recent and Pleistocene foraminiferal assemblages of Egypt and Greece OH Cherif, OM El-Halaby Neues Jahrbuch für Geologie und Paläontologie-Monatshefte, 605-621, 1996 | 3 | 1996 |
| Distribution of the Assemblages of Molluscan Shells As a Reflection of Sedimentation in the Northern Part of the Abu Sumah Bay, North Safaga, Red Sea Coast, Egypt, Annuals Geol OM El Halaby Surv. Egypt 26, 295-315, 2003 | 1 | 2003 |
| Taxonomy and foraminiferal biostratigraphy of the Mina Formation in wadi Qena and Wadi El-Agraamiya, North eastern Desert, Egypt A Galal, OM El-Halaby Ann. Geol. Surv, XXIV: pp353-376, 2001 | 1 | 2001 |
| Assemblages of foraminiferal species as a Reflection of sedimentation in the northern part of the Abu Thoma Bay, north Safaga, Red Sea coast, Egypt, Annuls Geol OM El Halaby Annals of the Geological Survey of Egypt 24, 323, 2001 | 1 | 2001 |
| Ecology and Taxonomy of Some Mollusk Species at El Malaha Ryan Offshore Area, Gulf of Aqaba, Egypt OM El Halaby, MM Khalil Scientific Journal for Damietta Faculty of Science 4 (1), 91-106, 2015 | | 2015 |
| FORAMINIFERAL ECOLOGY IN THE ENVIRONMENTALLY MANAGED AREA OF WADI EL MURAKH, GULF OF AQABA, EGYPT. OM El Halaby Annals of the Geological Survey of Egypt 26, 355, 2004 | | 2004 |
| Comparative ecologic studies of recent and Pleistocene foraminifera from Egyptian coasts. Cairo: Ain Shams University OM EL-HALABY Ph. D. thesis, 271p., 12 pl, 1993 | | 1993 |
| Statistical studies on the distribution of living Recent Foraminifera of the bay of Miami, Alexandria, 12th Egypt. Colloquium on state, Comp. OM Cherif, O. H. and EL Halaby Sci., Cairo, 1976 | | 1976 |
