Cycadeoidea marylandica (Bennettitales) from the late Albian of Spain and its palaeophytogeographical implications - 29/12/18
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.
Le texte complet de cet article est disponible en PDF.Keywords : Cycadeoidea marylandica, Bennettitalean trunk, Utrillas Formation, Palaeophytogeography, Albian, Spain, Southwestern Europe
Plan
| ☆ | Corresponding editor: Borja Cascales-Miñana. |
Vol 51 - N° 6
P. 591-596 - décembre 2018 Retour au numéro
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