Nitaspermum taylorii

Name

Nitaspermum taylorii

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

419

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

PP53993 (Puddledock sample 156)

Num

Plates I, 4-6 and II, 1-4

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

PP53973, PP54044, PP56530 (Puddledock sample 082); PP54182, PP56532 (Puddledock sample 083); PP56533 (Puddledock sample 151) PP54039, PP56534 (Puddledock sample 156); PP56536, PP56540 (Puddledock sample 181); PP53946 (Puddledock sample 182); PP56542 (Puddledock sample 195)

Num

pl. 1-4

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]

Diagnosis

Seeds elliptic in lateral view, broadly elliptic in transverse section. Hilum and micropyle area not raised. Hilum circular in outline with prominent rim. Palisade cells of exotesta short. Facets of exotesta cells equiaxial, irregularly aligned over most of the seed surface; folds of anticlinal walls rounded. Exotestal tissue between hilum and micropyle elongate, almost straight in longitudinal section.