Angiosperm-like pollen and Afropollis from the Middle Triassic (Anisian) of the Germanic Basin (Northern Switzerland)
Here we report on angiosperm-like pollen and Afropollis from the Anisian (Middle Triassic, 247.2 – 242.0 Ma) of a mid-latitudinal site in Northern Switzerland. Small monosulcate pollen grains with typical reticulate (semitectate) sculpture, columellate structure of the sexine and thin nexine show cl...
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ftdoajarticles:oai:doaj.org/article:bd827a09d3994adebfb51042c16f2edc 2023-05-15T15:39:01+02:00 Angiosperm-like pollen and Afropollis from the Middle Triassic (Anisian) of the Germanic Basin (Northern Switzerland) Peter Andreas Hochuli Susanne eFeist-Burkhardt 2013-10-01T00:00:00Z https://doi.org/10.3389/fpls.2013.00344 https://doaj.org/article/bd827a09d3994adebfb51042c16f2edc EN eng Frontiers Media S.A. http://journal.frontiersin.org/Journal/10.3389/fpls.2013.00344/full https://doaj.org/toc/1664-462X 1664-462X doi:10.3389/fpls.2013.00344 https://doaj.org/article/bd827a09d3994adebfb51042c16f2edc Frontiers in Plant Science, Vol 4 (2013) confocal laser scanning microscopy Middle Triassic angiosperm-like pollen angiosperm stem group Afropollis Plant culture SB1-1110 article 2013 ftdoajarticles https://doi.org/10.3389/fpls.2013.00344 2022-12-31T12:55:10Z Here we report on angiosperm-like pollen and Afropollis from the Anisian (Middle Triassic, 247.2 – 242.0 Ma) of a mid-latitudinal site in Northern Switzerland. Small monosulcate pollen grains with typical reticulate (semitectate) sculpture, columellate structure of the sexine and thin nexine show close similarities to early angiosperm pollen known from the Early Cretaceous. However, they differ in their extremely thin inner layer (nexine). Six different pollen types (I-VI) are differentiated based on size, reticulation pattern and exine structure. The described pollen grains show all the essential features of angiosperm pollen. However, considering the lack of a continuous record throughout the lower part of the Mesozoic and the comparison with the oldest Cretaceous finds we suggest an affinity to an angiosperm stem group. Together with the previously published records from the Middle Triassic of the Barents Sea area the angiosperm-like pollen grains reflect a considerable diversity of the parent plants during the Middle Triassic. Sedimentological evidence and associated palynofloras also suggest a remarkable ecological range for these plants. Associated with these grains we found pollen comparable to the genus Afropollis. Representatives of this genus are commonly recorded in Lower Cretaceous sediments of low latitudes, but until now had no record from the lower part of the Mesozoic. Article in Journal/Newspaper Barents Sea Directory of Open Access Journals: DOAJ Articles Barents Sea Frontiers in Plant Science 4 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
confocal laser scanning microscopy Middle Triassic angiosperm-like pollen angiosperm stem group Afropollis Plant culture SB1-1110 |
spellingShingle |
confocal laser scanning microscopy Middle Triassic angiosperm-like pollen angiosperm stem group Afropollis Plant culture SB1-1110 Peter Andreas Hochuli Susanne eFeist-Burkhardt Angiosperm-like pollen and Afropollis from the Middle Triassic (Anisian) of the Germanic Basin (Northern Switzerland) |
topic_facet |
confocal laser scanning microscopy Middle Triassic angiosperm-like pollen angiosperm stem group Afropollis Plant culture SB1-1110 |
description |
Here we report on angiosperm-like pollen and Afropollis from the Anisian (Middle Triassic, 247.2 – 242.0 Ma) of a mid-latitudinal site in Northern Switzerland. Small monosulcate pollen grains with typical reticulate (semitectate) sculpture, columellate structure of the sexine and thin nexine show close similarities to early angiosperm pollen known from the Early Cretaceous. However, they differ in their extremely thin inner layer (nexine). Six different pollen types (I-VI) are differentiated based on size, reticulation pattern and exine structure. The described pollen grains show all the essential features of angiosperm pollen. However, considering the lack of a continuous record throughout the lower part of the Mesozoic and the comparison with the oldest Cretaceous finds we suggest an affinity to an angiosperm stem group. Together with the previously published records from the Middle Triassic of the Barents Sea area the angiosperm-like pollen grains reflect a considerable diversity of the parent plants during the Middle Triassic. Sedimentological evidence and associated palynofloras also suggest a remarkable ecological range for these plants. Associated with these grains we found pollen comparable to the genus Afropollis. Representatives of this genus are commonly recorded in Lower Cretaceous sediments of low latitudes, but until now had no record from the lower part of the Mesozoic. |
format |
Article in Journal/Newspaper |
author |
Peter Andreas Hochuli Susanne eFeist-Burkhardt |
author_facet |
Peter Andreas Hochuli Susanne eFeist-Burkhardt |
author_sort |
Peter Andreas Hochuli |
title |
Angiosperm-like pollen and Afropollis from the Middle Triassic (Anisian) of the Germanic Basin (Northern Switzerland) |
title_short |
Angiosperm-like pollen and Afropollis from the Middle Triassic (Anisian) of the Germanic Basin (Northern Switzerland) |
title_full |
Angiosperm-like pollen and Afropollis from the Middle Triassic (Anisian) of the Germanic Basin (Northern Switzerland) |
title_fullStr |
Angiosperm-like pollen and Afropollis from the Middle Triassic (Anisian) of the Germanic Basin (Northern Switzerland) |
title_full_unstemmed |
Angiosperm-like pollen and Afropollis from the Middle Triassic (Anisian) of the Germanic Basin (Northern Switzerland) |
title_sort |
angiosperm-like pollen and afropollis from the middle triassic (anisian) of the germanic basin (northern switzerland) |
publisher |
Frontiers Media S.A. |
publishDate |
2013 |
url |
https://doi.org/10.3389/fpls.2013.00344 https://doaj.org/article/bd827a09d3994adebfb51042c16f2edc |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea |
genre_facet |
Barents Sea |
op_source |
Frontiers in Plant Science, Vol 4 (2013) |
op_relation |
http://journal.frontiersin.org/Journal/10.3389/fpls.2013.00344/full https://doaj.org/toc/1664-462X 1664-462X doi:10.3389/fpls.2013.00344 https://doaj.org/article/bd827a09d3994adebfb51042c16f2edc |
op_doi |
https://doi.org/10.3389/fpls.2013.00344 |
container_title |
Frontiers in Plant Science |
container_volume |
4 |
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1766370478383955968 |