Cheirolepidiacean foliage and pollen from Cretaceous high-latitudes of southeastern Australia
Cheirolepidiaceae leaves and pollen are recorded from Valanginian–Albian strata of southeastern Australia that were deposited at high-latitudes under cool, moist climates in contrast to the semi-arid or coastal habitats preferred by many northern Gondwanan and Laurasian representatives of this group...
Published in: | Gondwana Research |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Enheten för paleobiologi
2015
|
Subjects: | |
Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-1342 https://doi.org/10.1016/j.gr.2013.11.008 |
id |
ftnrm:oai:DiVA.org:nrm-1342 |
---|---|
record_format |
openpolar |
spelling |
ftnrm:oai:DiVA.org:nrm-1342 2023-05-15T14:05:22+02:00 Cheirolepidiacean foliage and pollen from Cretaceous high-latitudes of southeastern Australia Tosolini, Anne-Marie McLoughlin, Stephen Wagstaff, Barbara Cantrill, David Galagher, Stephen 2015 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-1342 https://doi.org/10.1016/j.gr.2013.11.008 eng eng Enheten för paleobiologi School of Earth Sciences, The University of Melbourne, Victoria 3010, Australia National Herbarium of Victoria, Royal Botanic Gardens Melbourne, South Yarra, Victoria 3141, Australia Gondwana Research, 1342-937X, 2015, 27, s. 960-977 http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-1342 doi:10.1016/j.gr.2013.11.008 info:eu-repo/semantics/openAccess Cretaceous Australia Conifer Cheirolepidiaceae Classopollis Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap Article in journal info:eu-repo/semantics/article text 2015 ftnrm https://doi.org/10.1016/j.gr.2013.11.008 2021-10-08T07:21:15Z Cheirolepidiaceae leaves and pollen are recorded from Valanginian–Albian strata of southeastern Australia that were deposited at high-latitudes under cool, moist climates in contrast to the semi-arid or coastal habitats preferred by many northern Gondwanan and Laurasian representatives of this group. Leaves of this family are characterized by thick cuticles and cyclocytic stomata with randomly oriented apertures, arranged in scattered or longitudinal rows or bands. Stomata are deeply sunken and surrounded by four to six subsidiary cells that bear one or two ranks of prominent overarching papillae, which may constrict the mouth of the pit. Three new taxa (Otwayia denticulata Tosolini, Cheirolepidiaceae cuticle sp. A and sp. B) are distinguished based on cuticular features, adding to several previously documented cheirolepid conifers in the Early Cretaceous of eastern Australia. Cheirolepidiaceae foliage is preserved predominantly in fluvial floodbasin settings and is interpreted to be derived from small trees occupying disturbed or low-nutrient sites. The foliage is associated with Classopollis/Corollina pollen and roots characterized by prominent mycorrhizal nodules. A Cenomanian Classopollis type recognised from Bathurst Island, Northern Australia, is recorded for the first time from the Early Cretaceous Eumeralla Formation, Otway Basin. Classopollis locally is rare in Valanginian–Barremian strata of Boola Boola, Gippsland, but constitutes up to 14% of the palynomorph assemblage in Albian strata. This indicates that the family was locally abundant in cool southern high-latitude climates of the Mesozoic, contrary to previous reports of its rarity in this region. Reconstructing the lost forests of Antarctica: the palaeoecology, anatomy and phylogeny of the iconic Glossopteris flora Exceptional permineralized biotas - windows into the evolution and functional diversity of terrestrial ecosystems through time Article in Journal/Newspaper Antarc* Antarctica Swedish Museum of Natural History: Publications (DiVA) Bathurst Island ENVELOPE(-100.002,-100.002,75.752,75.752) Glossopteris ENVELOPE(-113.717,-113.717,-84.733,-84.733) Gondwana Research 27 3 960 977 |
institution |
Open Polar |
collection |
Swedish Museum of Natural History: Publications (DiVA) |
op_collection_id |
ftnrm |
language |
English |
topic |
Cretaceous Australia Conifer Cheirolepidiaceae Classopollis Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap |
spellingShingle |
Cretaceous Australia Conifer Cheirolepidiaceae Classopollis Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap Tosolini, Anne-Marie McLoughlin, Stephen Wagstaff, Barbara Cantrill, David Galagher, Stephen Cheirolepidiacean foliage and pollen from Cretaceous high-latitudes of southeastern Australia |
topic_facet |
Cretaceous Australia Conifer Cheirolepidiaceae Classopollis Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap |
description |
Cheirolepidiaceae leaves and pollen are recorded from Valanginian–Albian strata of southeastern Australia that were deposited at high-latitudes under cool, moist climates in contrast to the semi-arid or coastal habitats preferred by many northern Gondwanan and Laurasian representatives of this group. Leaves of this family are characterized by thick cuticles and cyclocytic stomata with randomly oriented apertures, arranged in scattered or longitudinal rows or bands. Stomata are deeply sunken and surrounded by four to six subsidiary cells that bear one or two ranks of prominent overarching papillae, which may constrict the mouth of the pit. Three new taxa (Otwayia denticulata Tosolini, Cheirolepidiaceae cuticle sp. A and sp. B) are distinguished based on cuticular features, adding to several previously documented cheirolepid conifers in the Early Cretaceous of eastern Australia. Cheirolepidiaceae foliage is preserved predominantly in fluvial floodbasin settings and is interpreted to be derived from small trees occupying disturbed or low-nutrient sites. The foliage is associated with Classopollis/Corollina pollen and roots characterized by prominent mycorrhizal nodules. A Cenomanian Classopollis type recognised from Bathurst Island, Northern Australia, is recorded for the first time from the Early Cretaceous Eumeralla Formation, Otway Basin. Classopollis locally is rare in Valanginian–Barremian strata of Boola Boola, Gippsland, but constitutes up to 14% of the palynomorph assemblage in Albian strata. This indicates that the family was locally abundant in cool southern high-latitude climates of the Mesozoic, contrary to previous reports of its rarity in this region. Reconstructing the lost forests of Antarctica: the palaeoecology, anatomy and phylogeny of the iconic Glossopteris flora Exceptional permineralized biotas - windows into the evolution and functional diversity of terrestrial ecosystems through time |
format |
Article in Journal/Newspaper |
author |
Tosolini, Anne-Marie McLoughlin, Stephen Wagstaff, Barbara Cantrill, David Galagher, Stephen |
author_facet |
Tosolini, Anne-Marie McLoughlin, Stephen Wagstaff, Barbara Cantrill, David Galagher, Stephen |
author_sort |
Tosolini, Anne-Marie |
title |
Cheirolepidiacean foliage and pollen from Cretaceous high-latitudes of southeastern Australia |
title_short |
Cheirolepidiacean foliage and pollen from Cretaceous high-latitudes of southeastern Australia |
title_full |
Cheirolepidiacean foliage and pollen from Cretaceous high-latitudes of southeastern Australia |
title_fullStr |
Cheirolepidiacean foliage and pollen from Cretaceous high-latitudes of southeastern Australia |
title_full_unstemmed |
Cheirolepidiacean foliage and pollen from Cretaceous high-latitudes of southeastern Australia |
title_sort |
cheirolepidiacean foliage and pollen from cretaceous high-latitudes of southeastern australia |
publisher |
Enheten för paleobiologi |
publishDate |
2015 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-1342 https://doi.org/10.1016/j.gr.2013.11.008 |
long_lat |
ENVELOPE(-100.002,-100.002,75.752,75.752) ENVELOPE(-113.717,-113.717,-84.733,-84.733) |
geographic |
Bathurst Island Glossopteris |
geographic_facet |
Bathurst Island Glossopteris |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
Gondwana Research, 1342-937X, 2015, 27, s. 960-977 http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-1342 doi:10.1016/j.gr.2013.11.008 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.gr.2013.11.008 |
container_title |
Gondwana Research |
container_volume |
27 |
container_issue |
3 |
container_start_page |
960 |
op_container_end_page |
977 |
_version_ |
1766277186566750208 |