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...
Guardado en:
Autor principal: | |
---|---|
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 |
spelling |
paper:paper_1464343X_v101_n_p56_Vera2023-06-08T16:16:42Z New cyathealean tree ferns from the Cretaceous of South Africa: Natalipteris wildei gen. et sp. nov. and Kwazulupteris schaarschmidtii gen. et sp. nov. Vera, Ezequiel Ignacio 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 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. Fil:Vera, E.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2014 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 |
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 |
_version_ |
1768542904323670016 |