New Representative of Pinus L. from Jurassic Deposits of Belgorod Region, Russia

A new species of fossil pines, P. bukatkinii sp. nov., was found in the Middle Jurassic of Stoilensk open mine (the vicinity of Stary Oskol town, Belgorod Region). Seed cones of the new species possess four key diagnostic characters of representatives of the genus Pinus L.: thickened scale apices wi...

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Bibliographic Details
Published in:Paleontological journal 2023-02, Vol.57 (1), p.102-119
Main Authors: Bazhenova, N. V., Bazhenov, A. V., Tekleva, M. V., Resvyi, A. S.
Format: Article
Language:English
Subjects:
Canals
Cones
Earth and Environmental Science
Earth Sciences
Fossils
Herbivores
Jurassic
New species
Paleontology
Parasitism
Pinus
Plant structures
Plant tissues
Seeds
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Summary:A new species of fossil pines, P. bukatkinii sp. nov., was found in the Middle Jurassic of Stoilensk open mine (the vicinity of Stary Oskol town, Belgorod Region). Seed cones of the new species possess four key diagnostic characters of representatives of the genus Pinus L.: thickened scale apices with apophyses and umbo; trace to the seed scale and bract represents a single unit; resin canals enter the seed scale base abaxially; adaxially convex vascular bundles in the seed scale. The distinctive feature of the new species is a strong sclerification of the seed scale ground tissue. Galleries, made by herbivores, were found in seed cones of P. bukatkinii sp. nov., that represents the oldest documented evidence of parasitism on pinaceous seed cones.
ISSN:0031-0301
1555-6174
DOI:10.1134/S0031030123010033