Platananthus potomacensis E.M.Friis, P.R.Crane et K.R.Pedersen
Plant Fossil Names Registry Number: PFN002768
Act LSID: urn:lsid:plantfossilnames.org:act:2768
Genus: Platananthus Manchester
Page of description: 10
Illustrations or figures: pl. 1, figs 1–8, pl. 2, figs 1–6
Holotype PP34569, Paleobotanical Collections, Department of Geology, The Field Museum, Chicago, Illinois, USA
Figures: pl. 1, fig. 1
Staminate flowers in dense inflorescences. Flower surrounded by elongate, spatulate tepals, about the same length as the pollen sacs. Apical extension of connective peltate and slightly elongate not clearly delimited at the base; typically one third to one fourth the length of the pollen sacs, slightly projecting beyond the tepals. Pollen grains small to very small, prolate and finely reticulate.
From the Potomac River that runs close to where the material was collected.
Cretaceous, Lower Cretaceous, Albian
Patapsco Formation (Potomac Group), Late ALbian
West Brothers clay pit, Maryland
Plant fossil remain
macro- and meso-fossils-embryophytes except wood