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

被引:2
作者
Bazhenova, N. V. [1 ]
Bazhenov, A. V. [1 ]
Tekleva, M. V. [1 ]
Resvyi, A. S. [2 ]
机构
[1] Russian Acad Sci, Borissiak Paleontol Inst, Moscow 117647, Russia
[2] Russian Acad Sci, Zool Museum, St Petersburg 199034, Russia
基金
俄罗斯基础研究基金会;
关键词
Jurassic; Pinaceae; morphology; anatomy; systematics; plant damages; SEED CONE; PINACEOUS CONES; PETRIFIED CONES; SP-NOV; PITYOSTROBUS; OLIGOCENE; GENUS; EVOLUTION; CONIFERS; REMAINS;
D O I
10.1134/S0031030123010033
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
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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页码:102 / 119
页数:18
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