Quantitative data on the genus Loftusia from the Zagros Mts., northern Iraq
Authors
Muhittin Görmüş
Ankara University Engineering Faculty Geology Department, Gölbaşı Campus, Gölbaşı - Ankara
Qahtan A.M. Al Nuaimy
Commission of Technical Education Technical College Kirkuk
Fadhil A Ameen (Lawa)
Sulaimani University Geology Department, Iraq
Keywords:
Loftusia, Northern Iraq, Maastrichtian, Quantitative data
Abstract
The Maastrichtian sediments of northern Iraq are rich in larger benthic foraminifera. Among them, the genus Loftusia is well-known one because of its significant palaeogeographic distribution across the Mediterranean and Middle East. In this study, observations of abnormal test shapes, species recognition criteria and endoskeleton characteristics of Loftusia are discussed, based on the new material from north-eastern Iraq. The following species of Loftusia are described: Loftusia elongata Cox, L. persica Brady, Loftusia morgani Douvillé, L. anatolica Meriç, L. matsumarui Meriç and Görmüs, L. minor B Cox, L. ketini B Meriç and L. kahtaensis Meriç, Loftusia minor A Cox, L. oktayi Meriç and L. baykali Meriç. The predominant species are Loftusia elongata, L. morgani and L. baykali. Skewed abnormal individuals and epidermal parts of the endoskeleton structure are also interesting aspects to note. Quantitative data obtained for Loftusia allow us to better understand and interpret species identification criteria, abnormal occurrences and the endoskeleton structure.
