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Two new genera and species of permineralized tree ferns, Natalipteris wildei and Kwazulupteris schaarschmidtii, are defined and described in detail. Natalipteris wildei is a solenostelic stem without well-developed sclerenchyma sheaths in their vascular strands, and has a single vascular strand in the petiole bases, which are somewhat similar to the one present in Cibotium and Nishidacaulis. On the other hand, K. schaarschmidtii is a dictyostelic fern, with petiole bases with fused adaxial arcs and a single isolated meristele in the petiolar pith. Both taxa present features that preclude their placement in the recognized families of Cyatheales, but may be referred to the "core tree ferns" clade. Fossil specimens were found in the Senckenberg Forschungsinstitut Palaeobotanical Collection and, although they lack precise stratigraphic provenance, it is suggested that they were collected from the Mzinene Formation (Albian-Turonian). © 2014 Elsevier Ltd.


Documento: Artículo
Título:New cyathealean tree ferns from the Cretaceous of South Africa: Natalipteris wildei gen. et sp. nov. and Kwazulupteris schaarschmidtii gen. et sp. nov.
Autor:Vera, E.I.; Herbst, R.
Filiación:CONICET-Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Av. Angel Gallardo 470, C1405DJR Ciudad de Buenos Aires, Argentina
Área de Paleontología, Departamento de Ciencias Geológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires,Ciudad Universitaria, Pabellón II, Buenos Aires, C1428EGA, Argentina
Instituto Superior de Correlación Geológica-CONICET, Las Piedras 201 7/B, S.M. de Tucumán, 4000, Argentina
Palabras clave:Cretaceous; Cyatheales; Fossil; South Africa; Tree ferns; Albian; biostratigraphy; fern; fossil assemblage; new record; new species; paleobotany; taxonomy; Turonian; Cretaceous; fossil; new genus; vascular plant; fossil record; provenance; stratigraphy; South Africa; Filicophyta; Cibotium
Página de inicio:56
Página de fin:69
Título revista:Journal of African Earth Sciences
Título revista abreviado:J. Afr. Earth Sci.


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---------- APA ----------
Vera, E.I. & Herbst, R. (2014) . New cyathealean tree ferns from the Cretaceous of South Africa: Natalipteris wildei gen. et sp. nov. and Kwazulupteris schaarschmidtii gen. et sp. nov. Journal of African Earth Sciences, 101, 56-69.
---------- CHICAGO ----------
Vera, E.I., Herbst, R. "New cyathealean tree ferns from the Cretaceous of South Africa: Natalipteris wildei gen. et sp. nov. and Kwazulupteris schaarschmidtii gen. et sp. nov." Journal of African Earth Sciences 101 (2014) : 56-69.
---------- MLA ----------
Vera, E.I., Herbst, R. "New cyathealean tree ferns from the Cretaceous of South Africa: Natalipteris wildei gen. et sp. nov. and Kwazulupteris schaarschmidtii gen. et sp. nov." Journal of African Earth Sciences, vol. 101, 2014, pp. 56-69.
---------- VANCOUVER ----------
Vera, E.I., Herbst, R. New cyathealean tree ferns from the Cretaceous of South Africa: Natalipteris wildei gen. et sp. nov. and Kwazulupteris schaarschmidtii gen. et sp. nov. J. Afr. Earth Sci. 2014;101:56-69.