New Cenomanian florule and a leaf mine from southeastern Morocco: Palaeoecological and climatological inferences |
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| Institution: | 1. Institute of Evolution, University of Haifa, Mount Carmel, Haifa 31905, Israel;2. Stoneage S.R.L., Via Torino, 15, Trieste 34123, Italy;1. CNRS UMR 6118 Géosciences Rennes, Université Rennes 1, Campus de Beaulieu Bât. 15, 263 avenue du Général Leclerc, 35042 Rennes, France;2. European Synchrotron Radiation Facility, 71 avenue des Martyrs, 38000 Grenoble, France;3. CNRS UMR 5276 LGL-TPE, OSU Lyon, Université Lyon 1 (Claude Bernard), Campus La Doua, Bât. Géode, 43 boulevard du 11 Novembre 1918, 69622 Villeurbanne, France;1. Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement, Université Lyon 1, 69622, Villeurbanne, France;2. Institut Català de Paleontologia Miquel Crusafont, C/Escola Industrial 23, 08201, Sabadell, Catalonia, Spain;3. Departament d''Estratigrafia, Paleontologia i Geociències Marines, Universitat de Barcelona, c/Martí i Franquès s/n, 08028, Barcelona, Catalonia, Spain;4. Instituto de Geociencias (CSIC, UCM), Facultad de Geología, C/Jose Antonio Novais 12, 28040, Madrid, Spain;1. Lebanese University, Faculty of Sciences II, Department of Natural Sciences, Fanar, Fanar – Matn – P.O. Box 26110217, Lebanon;2. Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, People''s Republic of China;3. Muséum National d''Histoire Naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB, UMR 7205 CNRS UPMC EPHE, CP50, 45 rue Buffon, F-75005 Paris, France;1. Department of Orthodontics, School of Dental Medicine, Saint-Joseph University, Beirut, Lebanon;2. Department of Orthodontics, School of Dentistry, Beirut Arab University, Beirut, Lebanon;3. Department of Orthodontics and Dentofacial Orthopedics, Goldman School of Dental Medicine, Boston University, Boston, USA;1. State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, P.O. Box 9825, Beijing 100029, China;2. University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | The recently found Gara Sbaa florule of southeastern Morocco comes from distinctive carbonate lamellites with abundant fish fauna above the terrestrial/paralic Kem Kem sequence and correlated with the basal horizon of the open shelf carbonate Akrabou Formation. It is a “mixed” assemblage of ferns and gymnosperms of “Wealden aspect” associated with relatively advanced angiosperms, suggesting floristic exchanges between the insular land masses of northern Africa and southern Europe. The climatic conditions are inferred to have been similar to the mildly dry subtropical climate of the western Canary Islands. New taxa of aquatic angiosperms Garasbahia fexuosa Krassilov et Bacchia gen. et sp nov. and a leaf mine Troponoma constricta Krassilov, sp. nov. are described. |
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