Platanocarpus brookensis P.R.Crane, K.R.Pedersen, E.M.Friis et Drinnan
Plant Fossil Names Registry Number: PFN002837
Act LSID: urn:lsid:plantfossilnames.org:act:2837
Genus: Platanocarpus E.M.Friis, P.R.Crane et K.R.Pedersen
Reference: Crane, P. R., Pedersen, K. R., Friis, E. M. & Drinnan, A. N. (1993): Early Cretaceous (Early to Middle Albian) Platanoid Inflorescences Associated with Sapindopsis Leaves from the Potomac Group of Eastern North America. – Systematic Botany 18(2): 328–344., link
Page of description: 329
Illustrations or figures: figs 1–5, 7–23, 46
Holotype PP42988, Paleobotanical Collections, Department of Geology, The Field Museum, Chicago, Illinois, USA
Figures: figs 8–11, 23
Pistillate inflorescences (and infructescences) sessile on long axes. Inflorescences typically composed of numerous (>50) closely spaced flowers. Each flower consists of five carpels surrounded by several layers of spatulate membranous tepals. Inner tepals about as long as the carpels. Outer tepals typically at least half as long as the carpels. Carpels narrow obtriangular in outline, with a pyramidal swelling at the apex. Diameter of infructescence, 5–6 mm. Length of flower and carpel, 1.2–2.0 mm; breadth of flower, 0.7–1.0 mm.
From the type locality, Brooke.
Cretaceous, Lower Cretaceous, Albian
Patapsco Formation, Potomac Group; lower palynological Subzone II-B, early to middle Albian
"Bank near Brooke," (38°24′50″N, 77°21′43″W), northern Virginia
Plant fossil remain
macro- and meso-fossils-embryophytes except wood
Use comments to notify PFNR administrators of mistakes or incomplete information relevant to this record.