Summary: | FIGURE 3. Biternatisporites compositus gen. & comb. nov. A–E. General view of megaspores. A. Specimen no. 65, magnification ×42. B. Specimen no. 68, magnification ×42. C. Specimen no. 70 (holotype), magnification ×49. D. Specimen no. 70 (holotype), magnification ×185. E. Specimen no. 71, magnification ×58. F. Structure of large rays, specimen no. 70 (holotype), magnification ×2200. G. Structure of small rays, specimen no. 70 (holotype), magnification ×2200. Photographer: Iochannes Moeller, Alfred Wegener Institute for Polar and Marine Research, Potsdam. Published as part of Mashchuk, Irina M. & Frolov, Аndrey O., 2022, Biternatisporites gen. nov.-a new megaspore genus from the MiddleCarboniferous sediments of the Tunguska basin (Siberian platform, Russia), pp. 227-232 in Phytotaxa 576 (2) on page 230, DOI:10.11646/phytotaxa.576.2.9, http://zenodo.org/record/7461403
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