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Cycadeoidea marylandica (Bennettitales) from the late Albian of Spain and its palaeophytogeographical implications
Institution:1. Naturalis Biodiversity Center, PO Box 9517, 2300 RA Leiden, the Netherlands;2. Laboratory of Palaeobotany and Palynology, PO Box 80.021, 3508 TA Utrecht, the Netherlands;3. LWL-Museum für Naturkunde, Westfälisches Landesmuseum mit Planetarium, Sentruper Straße 285, D-48161 Münster, Germany;4. Matthäus-Schneider-Straße 14, D-95326 Kulmbach, Germany;5. Eichbergstraße 25a, D-95369 Untersteinach, Germany;6. Museum of Nature South Tyrol, Bindergasse/via Bottai 1, 39100 Bozen/Bolzano, Italy;7. Department für Geo- und Umweltwissenschaften, Paläontologie und Geobiologie, Ludwig-Maximilians-Universität & Bayerische Staatssammlung für Paläontologie und Geologie, Richard-Wagner-Straße 10, 80333 Munich, Germany;1. Dipartimento di Geoscienze, Via Giovanni Gradenigo 6, 35131 Padova, Italy;2. Museum of Nature South Tyrol, Via Bottai 1, 39100 Bolzano, Italy;3. Department für Geo- und Umweltwissenschaften, Paläontologie und Geobiologie, Ludwig-Maximilians-Universität and Bayerische Staatssammlung für Paläontologie und Geologie, Richard-Wagner-Straße 10, 80333 München, Germany;4. Laboratory of Palaeobotany and Palynology, Heidelberglaan 2, 3584 CS Utrecht, The Netherlands;5. Naturalis Biodiversity Center, PO Box 9517, 2300 RA Leiden, The Netherlands;6. Department of Integrative Biology, Museum of Paleontology, Jepson and University Herbaria, University of California, Berkeley, 3060 Valley Life Sciences Building #3140, CA 94720, United States;7. Forschungsstelle für Paläobotanik, University of Münster, Heisenbergstrasse 2, 48149 Münster, Germany
Abstract:The first evidence of the presence of Cycadeoidea marylandica (Order Bennettitales) in the Cretaceous of Eurasia is presented. The single specimen consists of a trunk fragment found in the late Albian deposits of the Utrillas Formation, near the village of Gargallo (NE Spain). It is a cylindrical fragment of a silicified trunk with exceptional preservation of external structures (leaf scars and cones). The characteristics of the cones indicate different states of development. The presence of this taxon in deposits of southwestern Eurasia further supports the hypothesis that floristic exchange occurred between North America and the islands that composed the Iberian Plate during Albian times.
Keywords:Bennettitalean trunk  Utrillas Formation  Palaeophytogeography  Albian  Spain  Southwestern Europe
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