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Alegret, Ortiz & Kaminski (eds.), 2012. Ninth International Workshop on Agglutinated Foraminifera, Abstract Volume ‘environment’, ‘ontogeny’ and ‘geological time’, allowing to differentiate between subspecies and ‘true’ species, while preserving different generations and ontogenetic (larval) stages within a single species. 41
Alegret, Ortiz & Kaminski (eds.), 2012. Ninth International Workshop on Agglutinated Foraminifera, Abstract Volume A molecular comparison of Entzia tetrastomella and Jadammina macrescens Maria HOLZMANN 1 , Michael A. KAMINSKI 2 , Sorin FILIPESCU 3 and Jan PAWLOWSKI 1 1 Department of Genetics and Evolution, University of Geneva, 30, Quai Ernest Ansermet, 1211 Geneva 4, Switzerland. 2 Earth Sciences department, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia. 3 Department of Geology, Babeş-Bolyai University, M. Kogălniceanu 1, 400084, Cluj Napoca, Romania. e-mail: maria.holzmann@unige.ch The genus Entzia has first been described from Transylvanian salt marshes more than 120 years ago (Daday, 1884). The only species contained in this genus, Entzia tetrastomella resembles the agglutinated foraminifer Jadammina macrescens (Brady). Loeblich and Tappan (1987) recognized Entzia as a valid genus, close to Jadammina. Based on recent morphological investigations of Entzia sampled from Romanian salt marshes in Turda by Filipescu and Kaminski (2011), the genus Entzia has been regarded as the senior synonym of Jadammina. A molecular investigation of Entzia based on partial SSU rDNA sequences reveals that specimens of Entzia are genetically more or less identical to Jadammina macrescens sampled from Dovey Estuary. Our molecular results therefore confirm previous morphological investigations, suggesting synonymy of the two genera. References: Filipescu, S. & Kaminski, M.A. 2011. Re-discovering Entzia, an agglutinated foraminifer from the Transylvanian salt marshes. In: Kaminski, M.A. & Filipescu, S. (eds.), Proceedings of the Eighth International Workshop on Agglutinated Foraminifera. Grzybowski Foundation Special Publication 16, pp. 29-35. Loeblich, A.R. & Tappan, H. 1987. Foraminiferal Genera and Their Classification. Van Nostrand Reinhold Co., 970 pp., New York. Von Daday, E. 1884. On a polythalamian from the salt-pools near Déva in Transylvania. The Annales and Magazine of Natural History, 83: 349-363. 42
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