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Alegret, Ortiz & Kaminski (eds.), 2012. Ninth International Workshop on Agglutinated Foraminifera, Abstract Volume Trochammina quadriloba (Grzybowski) sensu Geroch, 1960 in the Polish Outer Carpathians Ewa MALATA Institute of Geological Sciences, Jagiellonian University, Oleandry 2a, 30-063 Kraków, Poland e-mail: ewa.malata@uj.edu.pl An agglutinated foraminifera corresponding to Trochammina quadriloba (Grzybowski) sensu Geroch (1960) have been found in the foraminiferal assemblages of the Middle-Upper Eocene variegated marls and shales of the Fore-Magura Thrust. The characteristic features of this species are a very rough surface of the test and low, trochospiral coiling with three chambers visible on the umbilical side. Spiral side seems to consist of four chambers however, in some specimens, particularly with higher coiling, more chambers can be observed. Such a species was also described by Jurkiewicz (1967) from the Paleogene deposit of the middle part of the Polish Flysch Carpathians as well as by Samuel (1977) from the Paleogene flysch formations of the Slovakian West Carpathians. Geroch (1960) included Grzybowski’s Haplophragmium (Resussina) quadrilobum in the synonymes of Trochammina quadriloba (Grzybowski). Liszka & Liszkowa (1981) in their revision of the foraminifera described by Grzybowski in 1896, after examination of only one specimen from the original collection and basing on their observations from the Cretaceous red shales rejected the opinion of Geroch (1960) and included Grzybowski’s species into Trochammina bulloidiformis (Grzybowski). Huss (1966) presenting the agglutinated foraminifera from the Upper Cretaceous deposits of the Subsilesian Unit also included Grzybowski’s H. quadrilobum as well as Geroch’s T. quadriloba in the synonyms of T. bulloidiformis. Relatively numerous specimens from the Fore-Magura Thrust display some variety but in general correspond perfectly with the Geroch (1960), Jurkiewicz (1967), and Samuel descriptions, drawings and stratigraphic occurrence of the taxa determined as Trochammina quadriloba (Grzybowski). This taxa has been noticed in the Middle-Upper Eocene deposits and displays quite compact arrangement of chambers in contrary to Grzybowski (1986) original descriptions and drawings of H. quadrilobum and H. bulloidiforme as well as Huss (1966) description and illustration of the latter taxa showing spherical, more loosely arranged chambers and described from the Cretaceous deposits of the Flysch Carpathians. References: Geroch, S. 1960. Microfaunal assemblages from the Cretaceous and Paleogene Silesian Unit in the Beskid Śląski Mts. (Western Carpathians). Biuletyn Instytutu Geologicznego, 153, 7-138. Grzybowski, J. 1896. Otwornice czerwonych iłów z Wadowic [The foraminifera of the red clays from Wadowice]. Rozprawy Akademii Umijetności w Krakowie, Wydział Matematyczno-Przyrodniczy, Kraków, ser. 2, 30, 261-308. Huss, F. 1966. Otwornice aglutynujące serii podśląskiej jednostki roponośnej Węglówki (polskie Karpaty Fliszowe). Prace Geologiczne, Polska Akademia Nauk, 34, 1-76. Jurkiewicz, H. 1967. Foraminifers in the Sub-Menilitic Paleogene of the Polish Middle Carpathians. Biuletyn Instytutu Geologicznego, 210, 5-116. Liszka, S. & Liszkowa, J. 1981. Revision of J. Grzybowski’s paper (1896) “Foraminifera of the red clays from Wadowice”. Annales Societatis Geologorum Poloniae, 51, 153-208. 49
Alegret, Ortiz & Kaminski (eds.), 2012. Ninth International Workshop on Agglutinated Foraminifera, Abstract Volume Samuel, O. 1977. Agglutinated foraminifers from Paleogene flysch formations in the West Carpathians of Slovakia. 50
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