My specimens are genuine and will be delivered with a Certificate of authenticity, age and origin and scientific works copy described this species !

Specimen: Rare, huge museum quality specimen of Ginkgophytopsis delvalii ( Cambier & Renier 1910)  oldest know, Upper Carboniferous ginkgo fossil with extremely rare it's cone Psygmostrobus witch are proof that the plant is real ginkgo !

Locality:                   All detailed data will be provided with the specimen 

Stratigraphy:           Upper Carboniferous , Westphalian B

Age:                         ca. 310 Mya

Matrix dimensions:  ca. 29,0 x 20,0 x 4,0 cm ( white square on last picture is 1,0 x 1,0 cm )

Description:

Rare, huge museum quality specimen of Ginkgophytopsis delvalii ( Cambier & Renier 1910)  oldest know, Upper Carboniferous ginkgo fossil with extremely rare cone Psygmostrobus sp. and few seeds Psygmocarpus incertus witch are good proof that the plant is real ginkgo !!! Museum quality , rare specimen !

Rare, big specimen ( package u 5kg ) of oldest know ginkgo Ginkgophytopsis delvalii (older synonym names: Psygmophyllum delvali, Ginkgophyllum delvali ). Fossils of this foliage type are generally rare. Ginkgophytopsis delvalii leaves are up to 40 cm long, with a narrow leaf base that is somewhat arcuate. Lateral margins are slightly concave, and the distal margin is convex and may be irregularly lobet or fringed. Leaves assigned to this morphogenus are relatively large and elongate flabelliform , that is they have the form of fan. One of the most widespread species is Ginkgophytopsis delvalii  from the Westphalian ( Middle Pennsylvanian) of central Europe. The venation is delicate and composed of numerous parallel veins that fork several times in their course to the margin.  Ginkgophytopsis belongs to an enigmatic group of Devonian to Permian foliage types that, in contrast to most other late Paleozoic foliage, were not pinnately organized. Some scholars accommodate Ginkgophytopsis and similar leaf morphotypes from Europe, Asia, and North America in the artificial order Palaeophyllales, or they use the informal term palaeophyllalean forms for these leaves. The Palaeophyllales represent one of the great mysteries in paleobotany, because, to date, next nothing is know about the plants that produced the leaves. They are almost consistently found isolated. The generic name Ginkgophytopsis translates to something along the lines of " plant that looks like ginkgo" but this does not mean that these leaves were produced by early ginkgophytes. Some have suggested that Ginkgophytopsis leaves represent fronds of rare herbaceous fern or aphlebia of a tree ferns or cordaites; still others have suggested that some of them might actually represent foliage of an early ginkgophyte. 

Systematic:

Division:   Gymnospermatophyta

Class:       Ginkgopsida

Order:      Ginkgoales

Family:     Ginkgoceae

Genus:     Ginkgophytopsis Boureau, 1967

Species:  Ginkgophytopsis delvali (Cambier & Renier 1910) Boureau 1967 synonyme: Psygmophyllum