Lobospermum rugosum E.M.Friis, K.R.Pedersen et P.R.Crane

Plant Fossil Names Registry Number: PFN002853

Act LSID: urn:lsid:plantfossilnames.org:act:2853

Authors: E. M. Friis, K. R. Pedersen & P. R. Crane

Rank: species

Genus: Lobospermum E.M.Friis, K.R.Pedersen et P.R.Crane

Reference: Friis, E. M., Pedersen, K. R. & Crane, P. R. (2009): Early Cretaceous mesofossils from Portugal and eastern North America related to the Bennettitales-Erdtmanithecales-Gnetales group. – American Journal of Botany 96(1): 252–283.

Page of description: 263

Illustrations or figures: figs 54–57

Types

Holotype PP53374, Paleobotanical Collections, Department of Geology, The Field Museum, Chicago, Illinois, USA
Figures: fig. 55

Note: Holotype from sample Puddledock 083.

Paratypes: PP53377–PP53380, PP52705–PP53708 (sample Puddledock 082), PP53709–PP53710 (sample Puddledock 083).

Original diagnosis/description

As for the genus, with the following additions. Outer surface of seed rugulate. Cells of outer sclerenchyma layer not equiaxial in transverse section: cells toward the outside distinctly taller and forming the rugulate surface ornamentation.

Etymology

Referring to the rugulate surface of the seeds.

Stratigraphy

Cretaceous, Lower Cretaceous
Basal part of Subzone IIB, Potomac Group; early or middle Albian

Locality

United States
Tarmac Lone Star Industries sand and gravel pit, south of Richmond and east of the Appomattox River, Prince George County, Virginia (37°15′45″N, 77°22′25″W)

Plant fossil remain

macro- and meso-fossils-embryophytes except wood

Comments

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