Anacostia virginiensis E.M.Friis, P.R.Crane et K.R.Pedersen
Plant Fossil Names Registry Number: PFN001972
Act LSID: urn:lsid:plantfossilnames.org:act:1972
Genus: Anacostia E.M.Friis, P.R.Crane et K.R.Pedersen
Reference: Friis, E. M., Crane, P. R. & Pedersen, K. R. (1997): Anacostia, a new basal angiosperm from the Early Cretaceous of North America and Portugal with trichotomocolpate/monocolpate pollen. – Grana 36: 225–244.
Page of description: 231
Illustrations or figures: figs 4, 5
Holotype PP44151, Paleobotanical Collections, Department of Geology, The Field Museum, Chicago, Illinois, USA
Figures: figs 4A, D, F, 5A, B
Note: Holotype from sample 001 Puddledock.
Fruiting units semicircular to obovate in outline, with a straight or slightly convex ventral margin; collapsed fruit wall typically forming a narrow wing-like rim around the seed; epidermal cells of fruit wall small, each frequently with an elongated central papillate projection. Seed semicircular to obovate in outline, with slightly pointed micropylar area; outer cells of testa palisade-shaped.
From the state of Virginia where the fossils were collected.
Cretaceous, Lower Cretaceous, Albian
Patapsco Formation, Potomac Group (?basal part of palynological Subzone II-B, early or middle Albian)
Puddledock locality, Tarmac Lone Star Industries sand and gravel pit, 9 km southwest of Hopewell, Virginia
Plant fossil remain
macro- and meso-fossils-embryophytes except wood