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 neigh...

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Bibliographic Details
Main Author: Naugolnykh, Serge V.
Format: Other/Unknown Material
Language:unknown
Published: 2020
Subjects:
Biodiversity
Taxonomy
Plantae
Tracheophyta
Polypodiopsida
Gleicheniales
Gleicheniaceae
Tumidopteris
Pechora
Online Access:https://zenodo.org/record/5386677
https://doi.org/10.5281/zenodo.5386677
Description
Summary: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). Published as part of Naugolnykh, Serge V., 2020, A New Species Of The Genus Tumidopteris Naugolnykh From The Permian Of The Pechora Cis-Urals, Russia, pp. 270-278 in Fossil Imprint 76 (2) on page 273, DOI:10.37520/fi.2020.022, http://zenodo.org/record/5386665

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