On eBay Now...Huge 25 cm long complete Museum oldest fossil ginkgo rare cone Psygmostrobus For Sale
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Huge 25 cm long complete Museum oldest fossil ginkgo rare cone Psygmostrobus :
$220.00
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 ofGinkgophytopsis delvalii( Cambier & Renier 1910)oldest know, Upper Carboniferous ginkgo fossil with extremely rare it's cone Psygmostrobuswitch 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
Matrixdimensions: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 ofGinkgophytopsis delvalii( Cambier & Renier 1910)oldest know, Upper Carboniferous ginkgo fossil with extremely rare conePsygmostrobus sp.and few seedsPsygmocarpus incertuswitch are good proof that the plant is real ginkgo !!! Museum quality , rare specimen !
Rare, big specimen ( package u 5kg ) of oldest know ginkgoGinkgophytopsis delvalii(older synonym names:Psygmophyllum delvali, Ginkgophyllum delvali).Fossils of this foliage type are generally rare.Ginkgophytopsis delvaliileaves 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 havethe form of fan. One of the most widespread species isGinkgophytopsis delvaliifrom 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. Ginkgophytopsisbelongs 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 nameGinkgophytopsistranslates 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 thatGinkgophytopsisleaves 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.
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