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Acta Palaeontologica Polonica
Article . 2010 . Peer-reviewed
Data sources: Crossref
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Acta Palaeontologica Polonica
Article
License: CC BY
Data sources: UnpayWall
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ZENODO
Article . 2010
License: CC BY
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Late Gzhelian Pteridosperms with Callipterid Foliage of the Donets Basin, Ukraine

Authors: Boyarina, Natalya;

Late Gzhelian Pteridosperms with Callipterid Foliage of the Donets Basin, Ukraine

Abstract

Eight species of pteridosperms with callipterid foliage belonging to four genera are described from the upper Gzhelian of Donets Basin. The fossils indicate that the fronds of the callipterids belonging to the genera Lodevia, Dichophyllum, and Raminervia are bipartite in the upper part and are distinguished by the morphology of the penultimate order pinnae. The main diagnostic character of callipterid species with dissected pinnules is the shape of the pinnule segments. The degree of segmentation of pinnules and their size are considered to represent intraspecific variability expressing the heteroblastic development of the foliage. The taphonomical features of the plant remains and facies interpretations of the plant-bearing strata, including floodplain, floodplain-lacustrine and lacustrine deposits, indicate that the callipterids were dominant elements of the floodplain vegetation in the late Gzhelian.

Keywords

Pteridospermopsida, Ginkgoopsida, Tracheophyta, Peltaspermales, Biodiversity, Plantae, Autuniaceae, Ginkgoales, Taxonomy, Peltaspermaceae

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
16
Top 10%
Average
Average
Green
gold