Abstract

Global Geology 2022, 25(4) 195-213 DOI: ISSN: 1673-9736 CN: 22-1371/P

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	Keywords
	Triassic
	palaeobotany
	equisetophytes
	ferns
	conifers
	palaeophytogeography
	Authors
	S. V. Naugolnykh and A. P. Pronin
	PubMed
	Article by S. VNAAPP

Late Triassic flora of the northern part of the Fore-Caspian depression (Kazakhstan) as exemplified by data from the S. Nurzhanov-509 borehole

S. V. Naugolnykh1 and A. P. Pronin2

1. Geological Institute, Russian Academy of Sciences, Moscow 119017, Russia;
2. Company Zhakhan, Atyrau, Kazakhstan

Abstract：

The Late Triassic Nurzhanov flora is characterized on the basis of the material originated from the S.Nurzhanov-509 borehole disposed in the northern part of the Fore-Caspian depression, near the City of Atyrau, Republic of Kazakhstan. Taxonomic composition of the Nurzhanov flora includes equisetophytes Neocalamites sp., ferns Phlebopteris hazarensis Naugolnykh et Pronin, Todites sp., Cladophlebis sp., ginkgophytes Ginkgoites spp., conifers Podozamites sp. Palaeophytogeographic status of the Nurzhanov flora is discussed. According to the data obtained, this flora belongs to a transitional zone (an ecotonous belt), which existed between the Euro-Sinian and the Siberian-Canadian palaeofloristic realms during most of the Mesozoic time.

Keywords： Triassic palaeobotany equisetophytes ferns conifers palaeophytogeography

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