New cyathealean tree ferns from the Cretaceous of South Africa: Natalipteris wildei gen. et sp. nov. and Kwazulupteris schaarschmidtii gen. et sp. nov.

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 t...

Descripción completa

Detalles Bibliográficos
Autor principal: Vera, Ezequiel Ignacio
Publicado: 2014
Materias:
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1464343X_v101_n_p56_Vera
http://hdl.handle.net/20.500.12110/paper_1464343X_v101_n_p56_Vera
Aporte de:
id paper:paper_1464343X_v101_n_p56_Vera
record_format dspace
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 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
spellingShingle 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
Vera, Ezequiel Ignacio
New cyathealean tree ferns from the Cretaceous of South Africa: Natalipteris wildei gen. et sp. nov. and Kwazulupteris schaarschmidtii gen. et sp. nov.
topic_facet 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
description 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.
author Vera, Ezequiel Ignacio
author_facet Vera, Ezequiel Ignacio
author_sort Vera, Ezequiel Ignacio
title New cyathealean tree ferns from the Cretaceous of South Africa: Natalipteris wildei gen. et sp. nov. and Kwazulupteris schaarschmidtii gen. et sp. nov.
title_short New cyathealean tree ferns from the Cretaceous of South Africa: Natalipteris wildei gen. et sp. nov. and Kwazulupteris schaarschmidtii gen. et sp. nov.
title_full New cyathealean tree ferns from the Cretaceous of South Africa: Natalipteris wildei gen. et sp. nov. and Kwazulupteris schaarschmidtii gen. et sp. nov.
title_fullStr New cyathealean tree ferns from the Cretaceous of South Africa: Natalipteris wildei gen. et sp. nov. and Kwazulupteris schaarschmidtii gen. et sp. nov.
title_full_unstemmed New cyathealean tree ferns from the Cretaceous of South Africa: Natalipteris wildei gen. et sp. nov. and Kwazulupteris schaarschmidtii gen. et sp. nov.
title_sort new cyathealean tree ferns from the cretaceous of south africa: natalipteris wildei gen. et sp. nov. and kwazulupteris schaarschmidtii gen. et sp. nov.
publishDate 2014
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1464343X_v101_n_p56_Vera
http://hdl.handle.net/20.500.12110/paper_1464343X_v101_n_p56_Vera
work_keys_str_mv AT veraezequielignacio newcyathealeantreefernsfromthecretaceousofsouthafricanatalipteriswildeigenetspnovandkwazulupterisschaarschmidtiigenetspnov
bdutipo_str Repositorios
_version_ 1764820567801724928