{{Short description|Extinct species of flowering plant}} {{speciesbox |fossil_range = {{fossil range|Oligocene}} |genus = Alismaticarpum |parent_authority = M.E.Collinson |species = alatum |authority = M.E.Collinson }}
'''''Alismaticarpum alatum''''' is a fossil species of aquatic plants in the family Alismataceae. It is a form taxon created for winged fruits whose precise assignment to a genus is not possible.<ref>{{cite journal | last=Haggard | first=Kristina K. |author2=Tiffney, Bruce H. | year=1997 | title=The Flora of the Early Miocene Brandon Lignite, Vermont, USA. VIII. ''Caldesia'' (Alismataceae) | journal=American Journal of Botany | volume=84 | issue=2 | pages=239–252 | doi=10.2307/2446086 | jstor=2446086 | publisher=American Journal of Botany, Vol. 84, No. 2 | pmid=21712204 | doi-access=free }}</ref> Fossil fruits of this species are known from the Oligocene of England.
==References== {{Reflist|2}}
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Category:Alismataceae Category:Alismataceae genera Category:Oligocene plants Category:Prehistoric angiosperm genera Category:Monotypic Alismatales genera
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