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6 results for “Tumidopteris”
Text-fig. 3. Tumidopteris astra sp. nov., holotype GIN 4851/343h, morphology of sori. a: part of fertile pinnule; b: one practically complete sorus located on the terminal part of a lateral vein; c: sorus with four visible sporangia; d: partly damaged sorus with three visible sporangia; e: two neighbouring sori. Locality: the borehole IK-675, depth 961.7 m. Scale 1 mm (a, b, e), 500 Μm (c), 100 Μm (d). in A New Species Of The Genus Tumidopteris Naugolnykh From The Permian Of The Pechora Cis-Urals, Russia
Text-fig. 3. Tumidopteris astra sp. nov., holotype GIN 4851/343h, morphology of sori. a: part of fertile pinnule; b: one practically complete sorus located on the terminal part of a lateral vein; c: sorus with four visible sporangia; d: partly damaged sorus with three visible sporangia; e: two neighbouring sori. Locality: the borehole IK-675, depth 961.7 m. Scale 1 mm (a, b, e), 500 Μm (c), 100 Μm (d).
Text-fig. 2. Tumidopteris astra sp. nov., macromorphology. a, c: sterile pinna, spec. GIN 4851/340; b, d: holotype GIN 4851/343h; e: sterile pinna, spec. GIN 4851/344. Localities: the city of Vorkuta, Section 49, layer 254 (a, c), the borehole IK-675, depth 961.7 m (b, d), the borehole IK-677, depth 147.8 m (e). Scale 1 cm (a, b, c, e), 1 mm (d). in A New Species Of The Genus Tumidopteris Naugolnykh From The Permian Of The Pechora Cis-Urals, Russia
Text-fig. 2. Tumidopteris astra sp. nov., macromorphology. a, c: sterile pinna, spec. GIN 4851/340; b, d: holotype GIN 4851/343h; e: sterile pinna, spec. GIN 4851/344. Localities: the city of Vorkuta, Section 49, layer 254 (a, c), the borehole IK-675, depth 961.7 m (b, d), the borehole IK-677, depth 147.8 m (e). Scale 1 cm (a, b, c, e), 1 mm (d).
Text-fig. 5. Tumidopteris astra sp. nov., holotype GIN 4851/343h, morphology of sori. a, b: line tracing of the sorus; c: an isolated spore preserved on the sporangium. Scale 500 Μm (a, b), 20 Μm (c). in A New Species Of The Genus Tumidopteris Naugolnykh From The Permian Of The Pechora Cis-Urals, Russia
Text-fig. 5. Tumidopteris astra sp. nov., holotype GIN 4851/343h, morphology of sori. a, b: line tracing of the sorus; c: an isolated spore preserved on the sporangium. Scale 500 Μm (a, b), 20 Μm (c).
Text-fig. 6. Comparative analysis of the three genera (Prynadaeopteris RADCZ., Geperapteris S.V.MEYEN, Tumidopteris NAUGOLNYKH) with possible affinity to Gleicheniaceae from the Permian deposits of Angaraland. a–c: Tumidopteris NAUGOLNYKH; d–f: Prynadaeopteris RADCZ. (based on Radczenko 1955, 1956, Naugolnykh 2013); g–i: Geperapteris S.V.MEYEN (based on Meyen 1982, Naugolnykh 2013). Left column – sori in plan (frontal view); central column – leaves; right column – sori in cross-section; FL – flattened sori; HS – hemispherical sori. Scale 1 cm (b, h), 5 mm (e), 1 mm (a, d), 0.5 mm (g); c, f, i – figures schematically drawn without scale. in A New Species Of The Genus Tumidopteris Naugolnykh From The Permian Of The Pechora Cis-Urals, Russia
Text-fig. 6. Comparative analysis of the three genera (Prynadaeopteris RADCZ., Geperapteris S.V.MEYEN, Tumidopteris NAUGOLNYKH) with possible affinity to Gleicheniaceae from the Permian deposits of Angaraland. a–c: Tumidopteris NAUGOLNYKH; d–f: Prynadaeopteris RADCZ. (based on Radczenko 1955, 1956, Naugolnykh 2013); g–i: Geperapteris S.V.MEYEN (based on Meyen 1982, Naugolnykh 2013). Left column – sori in plan (frontal view); central column – leaves; right column – sori in cross-section; FL – flattened sori; HS – hemispherical sori. Scale 1 cm (b, h), 5 mm (e), 1 mm (a, d), 0.5 mm (g); c, f, i – figures schematically drawn without scale.
Text-fig. 4. Tumidopteris astra sp. nov., holotype GIN 4851/343h, morphology of sori (a, b, c), epidermal structure (e) and the sterile pinna (d; spec. 4851/344). a: partly damaged sorus; b: partly damaged sorus with six sporangia; c: two neighboring sori; d: part of the sterile pinna; e: costal epiderma. Scale 500 Μm (a, b, c), 1 cm (d), 200 Μm (e). in A New Species Of The Genus Tumidopteris Naugolnykh From The Permian Of The Pechora Cis-Urals, Russia
Text-fig. 4. Tumidopteris astra sp. nov., holotype GIN 4851/343h, morphology of sori (a, b, c), epidermal structure (e) and the sterile pinna (d; spec. 4851/344). a: partly damaged sorus; b: partly damaged sorus with six sporangia; c: two neighboring sori; d: part of the sterile pinna; e: costal epiderma. Scale 500 Μm (a, b, c), 1 cm (d), 200 Μm (e).
Text-fig. 1. Geographical position of the localities studied. in A New Species Of The Genus Tumidopteris Naugolnykh From The Permian Of The Pechora Cis-Urals, Russia
Text-fig. 1. Geographical position of the localities studied.
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