Nitaspermum hopewellense

Name

Nitaspermum hopewellense

Rank

Species

Generic Name

[Genus] Nitaspermum

Authors (Pub.)

Friis E. M. Crane P. R. Pedersen K. R.  

Publication

Fossil seeds with affinities to Austrobaileyales and Nymphaeales from the Early Cretaceous (Early to Middle Albian) of Virginia and Maryland, USA: new evidence for extensive extinction near the base of the angiosperm tree [2018/7]

Authors (Book)

Krings M. Harper C. J. Cúneo N. R. Rothwell G. W.  

Book

Transformative Paleobotany

Page number

421

Year

2018

Fossil Status

seeds

Stratigraphy

Albian

Strat. comment

Potomac Group

Location

Puddledock locality, former Tarmac Lone Star Industries (Vulcan Materials Co.) sand and gravel pit, located south of Richmond and east of the Appomattox River in Prince George County, Virginia, USA

Paleoregion

America (North)

Data for Holotypus

Repository

Field Museum, Chicago, USA

Repository Number

PP53972 (Puddledock sample 082)

Num

Plate V, 1-5

Pub.

Fossil seeds with affinities to Austrobaileyales and Nymphaeales from the Early Cretaceous (Early to Middle Albian) of Virginia and Maryland, USA: new evidence for extensive extinction near the base of the angiosperm tree [2018/7]

Data for Paratypus

Repository

Field Museum, Chicago, USA

Repository Number

PP56529 (Puddledock sample 073); PP56531 (Puddledock sample 082); PP56541 (Puddledock sample 181)

Diagnosis

Seeds elliptic in lateral view and broadly elliptic in transverse section. Hilum and micropyle area not raised. Hilum circular in outline with an indistinct rim. Palisade cells of exotesta short. Facets of exotesta cells transversely elongate, aligned in longitudinal rows over most of the seed surface; folds of anticlinal walls sharp. Exotestal tissue between hilum and micropyle curved in longitudinal section.