Discovery of isolated leaves of Marskea (Taxaceae) in the Middle Jurassic sediments of Irkutsk Basin (East Siberia, Russia)

descriptionPublicationkeyboard_double_arrow_right Article 18 Jun 2020Publisher:Magnolia PressJournal:Phytotaxa, volume 449 (issn: 1179-3155, eissn: 1179-3163,

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Authors: Frolov, Andrey O.; Mashchuk, Irina M.;

doi: 10.11646/phytotaxa.449.2.4

Discovery of isolated leaves of Marskea (Taxaceae) in the Middle Jurassic sediments of Irkutsk Basin (East Siberia, Russia)

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Abstract

Study of isolated leaf compressions from Prisayan Formation outcrops on the right side of the Irkutsk reservoir resulted in identification of a new species: Marskea cuspidata sp. nov. The species has a strong morphological affinity with M. heeriana N. Nosova et Kiritchkova and T. ketovae Teslenko. The epidermis original texture differs well the Marskea cuspidata sp. nov. from other representatives of the genus Marskea which are known from the Jurassic and Lower Cretaceous sediments of Europe, Central Asia and Siberia.

Related Organizations

Russian Academy of Sciences
Russian Federation
Institute of the Earth’s Crust
Russian Federation

Keywords

Biodiversity, Taxonomy

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