期刊
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
卷 161, 期 1-2, 页码 77-86出版社
ELSEVIER
DOI: 10.1016/j.revpalbo.2010.03.001
关键词
early angiosperm; freshwater; Early Cretaceous; Albian; Iberian Chain; Spain
资金
- 'Ministerio de Ciencia e Innovacion' of the Spanish government [CGL2005-00046/BTE, CGL2008-00809/BTE, CGL2009-11838/BTE]
- Catalan government [SGR2009-1451]
- CNRS-UMR [5125 PEPS, 5143]
- French 'Agence nationale de la recherche' [BLAN07-1-184190]
- OTRI [2007-116]
An aquatic angiosperm, Ploufolia cerciforme gen. et comb. nov., is reported from the Upper Albian of the Utrillas Formation at the Plou locality, Teruel Province, north-eastern Spain. Ploufolia cerciforme shows eccentric peltate attachment, elliptic to obovate nanophylls, one medial primary vein and lateral veins that dichotomize several times before merging into an intramarginal vein, which links small glands that occur on the convex portions of the marginal undulations. Ploufolia cerciforme shows most affinities with extant Nymphaeales and both sedimentological and taphonomic evidence supports a freshwater lacustrine habit for P. cerciforme. The presence of marginal glands in leaves of P. cerciforme is related to a leaf guttation mechanism, as occurs in plants living in water saturated habitats. By the Albian, aquatic angiosperms were already well diversified and often dominant in western European wetland environments. (C) 2010 Elsevier B.V. All rights reserved.
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