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Geperapteris rotunda
Geperapteris rotunda Naug. Paleontol. J., 47(12): 1435. Dec 2013
- Name
- Geperapteris rotunda
- Rank
- Species
- Generic Name
- [Genus] Geperapteris
- Authors (Pub.)
- Naugolnykh S. V.
- Publication
- Permian ferns of western Angaraland [2013/12]
- Journal
- Paleontological Journal
- Volume
- 47
- Issue
- 12
- Page number
- 1435
- Year
- 2013
- Fossil Status
- foliage (fertile)
- Stratigraphy
- Roadian
- Strat. comment
- Kazanian Stage
- Location
- Pechora Coal Basin, borehole VK-12, 807.5 m of depth, Komi Republic, Russian Federation
- Paleoregion
- Angarida
Data for Holotypus
- Repository
- Geological Institute, Russian Academy of Sciences, Moscow, Russian Federation
- Repository Number
- 4851/175
- Diagnosis
- Fronds bipinnate or tripinnate. Frond rachis undulating. Pinna rachis straight. Pinnules pecopteroid, with lobate margins. Sori capitate,
round, hemispherical, consisting of 14–18 sporangia
attached to receptacle. Spores round to subtriangular,
30–40 μm in diameter, with trilete scar. Rays of trilete
scar reaching one-third of spore radius. Proximal surface of spore smooth, distal surface ornamented by fine scabrae.
