Abstract
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.
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ACKNOWLEGMENTS
Authors are grateful to M.S. Rogov from the Geological Institute RAS, Moscow (GIN RAS) from the discussion of the geology of Stoilensk locality and R.A. Rakitov from A.A. Borissyak Paleontological Institute RAS, Moscow (PIN RAS) for help with SEM and Micro Computer Tomography System.
Funding
The study was supported by the Russian Foundation for Basic Research, project no. 19-04-00046.
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Bazhenova, N.V., Bazhenov, A.V., Tekleva, M.V. et al. New Representative of Pinus L. from Jurassic Deposits of Belgorod Region, Russia. Paleontol. J. 57, 102–119 (2023). https://doi.org/10.1134/S0031030123010033
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DOI: https://doi.org/10.1134/S0031030123010033