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Nothostigma sepeense
Nothostigma sepeense Spiekerm., Jasper, Guerra-Sommer, D. Uhl in Spiekerm., Jasper, Pozz.-Silva, Siq. Carn., Benício, Guerra-Sommer, D. Uhl J. S. Amer. Earth Sci., 122(104188): 4. 28 Dec 2022
- Name
- Nothostigma sepeense
- Rank
- Species
- Original spelling
- sepeensis
- Generic Name
- [Genus] Nothostigma
- Authors (Name)
- Spiekermann R.
Jasper A.
Guerra-Sommer M.
Uhl D.
- Authors (Pub.)
- Spiekermann R.
Jasper A.
Pozzebon-Silva Â.
Siqueira Carniere J.
Benício J. R. W.
Guerra-Sommer M.
Uhl D.
- Publication
- Small but not trivial: Nothostigma sepeensis sp. nov., a lycopsid from the
Cisuralian (early Permian) of the Paraná Basin, Brazil [2022/12]
- Journal
- Journal of South American Earth Sciences
- Volume
- 122
- Issue
- 104188
- Page number
- 4
- Year
- 2022
- Fossil Status
- stems
- Stratigraphy
- Cisuralian
- Strat. comment
- Palermo Formation, Artinskian–Kungurian
- Location
- São Sepé outcrop (30◦09′ S; 53◦40′ W), municipality of São Sepé, Rio Grande do Sul State, Brazil
- Paleoregion
- Gondwana (South America)
Data for Holotypus
- Repository
- Universidade Federal do Rio Grande do Sul, Institute of Geoscience, Porto Alegre, Brazil
- Repository Number
- Pb 1229A
Data for Paratypus
- Repository
- Universidade Federal do Rio Grande do Sul, Institute of Geoscience, Porto Alegre, Brazil
- Repository Number
- Pb 1229B
- Diagnosis
- Axes covered in minute leaf cushions, exhibiting rhomboidal
outline or swollen spindle shape usually with acuminate apex.
Leaf cushions arranged side by side in pseudowhorled pattern, and
orthostichies sometimes evident. Extremely narrow leaf cushion interareas,
resembling thin, delicate, sharp ingrown lines, occasionally
leading to an open connection between the succeeding cushion fields in
an orthostichy. Leaf scar in the central or superomedial part of the
cushion, with rhomboidal to curvilinear triangle outline when well delineated.
Leaf cushion epidermis composed of polygonal-shaped cells.
