Rajkanella hottingerinaformis n. gen., n. sp., a new larger benthic foraminifer from the middle-upper Cenomanian of Kosovo |
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| Institution: | 1. Lerchenauerstr. 167, D-80935 München, Germany;2. Earth Observatory of Singapore, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore;1. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, People''s Republic of China;2. Lebanese University, Faculty of Sciences II, Department of Biology, Fanar Matn P.O. Box 26110217, Lebanon;3. Institut de Systématique, Évolution, Biodiversité, ISYEB, UMR 7205, CNRS, MNHN, UPMC, EPHE, Muséum national d''Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie, F-75005 Paris, France;1. Museum of Natural History, University of Wrocław, Sienkiewicza 21, 50-335, Wrocław, Poland;2. Schmalhausen Institute of Zoology, National Academy of Sciences of Ukraine, Bogdana Khmel''nitskogo 15, Kiev, 01601, Ukraine;1. Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Catania, Via A. Longo, 19, I-95128 Catania, Italy;2. Grant Institute, School of GeoSciences, The King''s Buildings, University of Edinburgh, James Hutton Road, Edinburgh EH9 3FE, United Kingdom;3. School of Ocean and Earth Science, National Oceanography Centre, University of Southampton, European Way, Southampton SO14 3ZH, United Kingdom;4. Museo Civico di Storia Naturale, Via degli Studi 9, 97013 Comiso, Ragusa, Italy;5. Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Alma Mater Studiorum, Università di Bologna, Via Zamboni, 67, 40126 Bologna, Italy;6. Dipartimento di Scienze della Terra, Università degli Studi di Torino, Via Valperga Caluso, 35, 10125 Torino, Italy;7. Istituto di Geoscienze e Georisorse CNR, 56124 Pisa, Italy;1. State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing 100083, China;2. Institute of Geosciences, Christian-Albrechts-University, Kiel D-24118, Germany;3. China National Offshore Oil Corporation, Beijing, 100010, China;4. Department of Geoscience, University of Wisconsin-Madison, Madison, WI 53706, USA;1. ITT Fossil, Instituto Tecnológico de Micropaleontologia, Universidade do Vale do Rio dos Sinos (UNISINOS), Av. UNISINOS, 950, B. Cristo Rei/CEP: 93.022-000, São Leopoldo, RS, Brazil;2. Instituto Antártico Argentino (IAA), Buenos Aires, Argentina;3. IDEAN-CONICET, Departamento de Ciências Geológicas, Universidad de Buenos Aires, Pabellón II, Ciudad Universitaria, 1428, Buenos Aires, Argentina;4. Department of Earth Sciences, University College London, Gower Street, London, WC1E 6BT, UK;5. Museu Nacional – Universidade Federal do Rio de Janeiro, Brazil;1. Henan Geological Museum, Jinshuidong Road 18, Zhengdong New District, 450016 Zhengzhou, China;2. Institute of Arid Zones of Russian Academy of Sciences, Southern Federal University, 41 Chekhov av., Rostov-on-Don 344006, Russia |
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| Abstract: | A new larger benthic porcelaneous foraminifer of soritid affinity is described as Rajkanella hottingerinaformis n. gen., n. sp. from the middle-upper Cenomanian of Kosovo. It occurs in foraminiferal packstones and grainstones, in association with cuneolinids, rhapidionids, chrysalidinids, and other benthic foraminifers. Due to its general morphology and superficial chamber subdivision by exoskeletal elements, Rajkanella n. gen. can be compared with the early Paleogene genus Hottingerina Drobne, 1975, from which it mainly differs in its apertural features, ornamented test, and coiled adult stage. Further differences to coeval Pseudorhapydionina De Castro, 1971, Pseudorhipidionina De Castro, 1971, and to other comparable genera, are discussed. The discovery of Rajkanella hottingerinaformis in the middle-upper Cenomanian is a further witness of the significant radiation and blooming of increasingly complex porcelaneous foraminifers in inner platform, shallow-water depositional settings during that period. |
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| Keywords: | Porcelaneous foraminifera Rudimentary structures Shallow water carbonates Biostratigraphy Cenomanian |
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