Extending beyond Gondwana: Cretaceous Cunoniaceae from western North America
Summary Cunoniaceae are important elements of rainforests across the Southern Hemisphere. Many of these flowering plants are considered Paleo‐Antarctic Rainforest Lineages that had a Gondwanan distribution since the Paleocene. Fossils of several modern genera within the family, such as Ceratopetalum...
Published in: | New Phytologist |
---|---|
Main Authors: | , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2022
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/nph.17976 https://onlinelibrary.wiley.com/doi/pdf/10.1111/nph.17976 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/nph.17976 https://nph.onlinelibrary.wiley.com/doi/am-pdf/10.1111/nph.17976 https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.17976 |
id |
crwiley:10.1111/nph.17976 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/nph.17976 2024-09-15T17:44:04+00:00 Extending beyond Gondwana: Cretaceous Cunoniaceae from western North America Tang, Keana K. Smith, Selena Y. Atkinson, Brian A. National Science Foundation Paleontological Society 2022 http://dx.doi.org/10.1111/nph.17976 https://onlinelibrary.wiley.com/doi/pdf/10.1111/nph.17976 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/nph.17976 https://nph.onlinelibrary.wiley.com/doi/am-pdf/10.1111/nph.17976 https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.17976 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor New Phytologist volume 234, issue 2, page 704-718 ISSN 0028-646X 1469-8137 journal-article 2022 crwiley https://doi.org/10.1111/nph.17976 2024-07-25T04:24:02Z Summary Cunoniaceae are important elements of rainforests across the Southern Hemisphere. Many of these flowering plants are considered Paleo‐Antarctic Rainforest Lineages that had a Gondwanan distribution since the Paleocene. Fossils of several modern genera within the family, such as Ceratopetalum , have indicated biogeographical connections between South America and Australia in the Cenozoic. Here, we report a dramatic geographical range extension for Ceratopetalum , and Cunoniaceae as a whole, based on two exceptionally preserved fossil winged fruits from Campanian ( c . 82–80 Ma old) deposits on Sucia Island, Washington, USA. The fossils were studied using physical sectioning, light microscopy, micro‐computed tomography scanning and multiple phylogenetic analyses. The fossil fruits share diagnostic characters with Ceratopetalum such as the presence of four to five persistent calyx lobes, a prominent nectary disk, persistent stamens, a semi‐inferior ovary and two persistent styles. Based on morphological comparisons with fruits of extant species and support from phylogenetic analyses, the fossils are assigned to a new species Ceratopetalum suciensis . These fossils are the first unequivocal evidence of crown Cunoniaceae from the Cretaceous of North America, indicating a more complicated biogeographical history for this important Gondwanan family. Article in Journal/Newspaper Antarc* Antarctic Wiley Online Library New Phytologist 234 2 704 718 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Summary Cunoniaceae are important elements of rainforests across the Southern Hemisphere. Many of these flowering plants are considered Paleo‐Antarctic Rainforest Lineages that had a Gondwanan distribution since the Paleocene. Fossils of several modern genera within the family, such as Ceratopetalum , have indicated biogeographical connections between South America and Australia in the Cenozoic. Here, we report a dramatic geographical range extension for Ceratopetalum , and Cunoniaceae as a whole, based on two exceptionally preserved fossil winged fruits from Campanian ( c . 82–80 Ma old) deposits on Sucia Island, Washington, USA. The fossils were studied using physical sectioning, light microscopy, micro‐computed tomography scanning and multiple phylogenetic analyses. The fossil fruits share diagnostic characters with Ceratopetalum such as the presence of four to five persistent calyx lobes, a prominent nectary disk, persistent stamens, a semi‐inferior ovary and two persistent styles. Based on morphological comparisons with fruits of extant species and support from phylogenetic analyses, the fossils are assigned to a new species Ceratopetalum suciensis . These fossils are the first unequivocal evidence of crown Cunoniaceae from the Cretaceous of North America, indicating a more complicated biogeographical history for this important Gondwanan family. |
author2 |
National Science Foundation Paleontological Society |
format |
Article in Journal/Newspaper |
author |
Tang, Keana K. Smith, Selena Y. Atkinson, Brian A. |
spellingShingle |
Tang, Keana K. Smith, Selena Y. Atkinson, Brian A. Extending beyond Gondwana: Cretaceous Cunoniaceae from western North America |
author_facet |
Tang, Keana K. Smith, Selena Y. Atkinson, Brian A. |
author_sort |
Tang, Keana K. |
title |
Extending beyond Gondwana: Cretaceous Cunoniaceae from western North America |
title_short |
Extending beyond Gondwana: Cretaceous Cunoniaceae from western North America |
title_full |
Extending beyond Gondwana: Cretaceous Cunoniaceae from western North America |
title_fullStr |
Extending beyond Gondwana: Cretaceous Cunoniaceae from western North America |
title_full_unstemmed |
Extending beyond Gondwana: Cretaceous Cunoniaceae from western North America |
title_sort |
extending beyond gondwana: cretaceous cunoniaceae from western north america |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1111/nph.17976 https://onlinelibrary.wiley.com/doi/pdf/10.1111/nph.17976 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/nph.17976 https://nph.onlinelibrary.wiley.com/doi/am-pdf/10.1111/nph.17976 https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.17976 |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
New Phytologist volume 234, issue 2, page 704-718 ISSN 0028-646X 1469-8137 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/nph.17976 |
container_title |
New Phytologist |
container_volume |
234 |
container_issue |
2 |
container_start_page |
704 |
op_container_end_page |
718 |
_version_ |
1810491399253000192 |