Evolution and Relationships of the Conifer Seed Cone Telemachus: Evidence from the Triassic of Antarctica
This is the publisher's version, also available electronically from http://www.jstor.org/stable/10.1086/651948 The seed cone Telemachus is known from several Triassic localities in Gondwana. New specimens from two localities in Antarctica provide additional information about the type species, T...
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2014
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Online Access: | http://hdl.handle.net/1808/13688 https://doi.org/10.1086/651948 |
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ftunivkansas:oai:kuscholarworks.ku.edu:1808/13688 2023-05-15T13:32:09+02:00 Evolution and Relationships of the Conifer Seed Cone Telemachus: Evidence from the Triassic of Antarctica Escapa, Ignacio H. Decombeix, Anne-Laure Taylor, Edith L. Taylor, Thomas N. 2014-05-20T14:42:44Z http://hdl.handle.net/1808/13688 https://doi.org/10.1086/651948 unknown University of Chicago Press http://www.jstor.org/stable/10.1086/651948 Ignacio H. Escapa, Anne‐Laure Decombeix, Edith L. Taylor, and Thomas N. Taylor. "Evolution and Relationships of the Conifer Seed Cone Telemachus: Evidence from the Triassic of Antarctica." International Journal of Plant Sciences, Vol. 171, No. 5 (June 2010), pp. 560-573 http://hdl.handle.net/1808/13688 doi:10.1086/651948 openAccess Triassic Antarctica Conifers Telemachus Evolution Article 2014 ftunivkansas https://doi.org/10.1086/651948 2022-08-26T13:14:36Z This is the publisher's version, also available electronically from http://www.jstor.org/stable/10.1086/651948 The seed cone Telemachus is known from several Triassic localities in Gondwana. New specimens from two localities in Antarctica provide additional information about the type species, Telemachus elongatus, based on details of morphology and anatomy revealed by using a modified transfer technique on the compressed plants. Seed cones of T. elongatus are up to 6.0 cm long and characterized by conspicuous, elongate bracts. A second Antarctic species, described here as Telemachus antarcticus, is segregated, based on a shorter bract and differences in cone size. Newly recognized features of the genus include the shape, size, and disposition of the ovules; vascularization of the ovuliferous complex; and scale and bract histology. As a result of this new information, it is now possible to compare Telemachus with the permineralized Middle Triassic conifer seed cone Parasciadopitys from the Central Transantarctic Mountains. The similarities between the two genera make it possible to relate organs in different preservational modes and to develop a more complete concept for this widely distributed Gondwana conifer. Placing the Telemachus plant within a phylogenetic context makes it possible to evaluate the relationship with other so‐called transitional conifers, an informal group that has been interpreted as intermediate between Paleozoic and modern conifers. Article in Journal/Newspaper Antarc* Antarctic Antarctica antarcticus The University of Kansas: KU ScholarWorks Antarctic Transantarctic Mountains International Journal of Plant Sciences 171 5 560 573 |
institution |
Open Polar |
collection |
The University of Kansas: KU ScholarWorks |
op_collection_id |
ftunivkansas |
language |
unknown |
topic |
Triassic Antarctica Conifers Telemachus Evolution |
spellingShingle |
Triassic Antarctica Conifers Telemachus Evolution Escapa, Ignacio H. Decombeix, Anne-Laure Taylor, Edith L. Taylor, Thomas N. Evolution and Relationships of the Conifer Seed Cone Telemachus: Evidence from the Triassic of Antarctica |
topic_facet |
Triassic Antarctica Conifers Telemachus Evolution |
description |
This is the publisher's version, also available electronically from http://www.jstor.org/stable/10.1086/651948 The seed cone Telemachus is known from several Triassic localities in Gondwana. New specimens from two localities in Antarctica provide additional information about the type species, Telemachus elongatus, based on details of morphology and anatomy revealed by using a modified transfer technique on the compressed plants. Seed cones of T. elongatus are up to 6.0 cm long and characterized by conspicuous, elongate bracts. A second Antarctic species, described here as Telemachus antarcticus, is segregated, based on a shorter bract and differences in cone size. Newly recognized features of the genus include the shape, size, and disposition of the ovules; vascularization of the ovuliferous complex; and scale and bract histology. As a result of this new information, it is now possible to compare Telemachus with the permineralized Middle Triassic conifer seed cone Parasciadopitys from the Central Transantarctic Mountains. The similarities between the two genera make it possible to relate organs in different preservational modes and to develop a more complete concept for this widely distributed Gondwana conifer. Placing the Telemachus plant within a phylogenetic context makes it possible to evaluate the relationship with other so‐called transitional conifers, an informal group that has been interpreted as intermediate between Paleozoic and modern conifers. |
format |
Article in Journal/Newspaper |
author |
Escapa, Ignacio H. Decombeix, Anne-Laure Taylor, Edith L. Taylor, Thomas N. |
author_facet |
Escapa, Ignacio H. Decombeix, Anne-Laure Taylor, Edith L. Taylor, Thomas N. |
author_sort |
Escapa, Ignacio H. |
title |
Evolution and Relationships of the Conifer Seed Cone Telemachus: Evidence from the Triassic of Antarctica |
title_short |
Evolution and Relationships of the Conifer Seed Cone Telemachus: Evidence from the Triassic of Antarctica |
title_full |
Evolution and Relationships of the Conifer Seed Cone Telemachus: Evidence from the Triassic of Antarctica |
title_fullStr |
Evolution and Relationships of the Conifer Seed Cone Telemachus: Evidence from the Triassic of Antarctica |
title_full_unstemmed |
Evolution and Relationships of the Conifer Seed Cone Telemachus: Evidence from the Triassic of Antarctica |
title_sort |
evolution and relationships of the conifer seed cone telemachus: evidence from the triassic of antarctica |
publisher |
University of Chicago Press |
publishDate |
2014 |
url |
http://hdl.handle.net/1808/13688 https://doi.org/10.1086/651948 |
geographic |
Antarctic Transantarctic Mountains |
geographic_facet |
Antarctic Transantarctic Mountains |
genre |
Antarc* Antarctic Antarctica antarcticus |
genre_facet |
Antarc* Antarctic Antarctica antarcticus |
op_relation |
http://www.jstor.org/stable/10.1086/651948 Ignacio H. Escapa, Anne‐Laure Decombeix, Edith L. Taylor, and Thomas N. Taylor. "Evolution and Relationships of the Conifer Seed Cone Telemachus: Evidence from the Triassic of Antarctica." International Journal of Plant Sciences, Vol. 171, No. 5 (June 2010), pp. 560-573 http://hdl.handle.net/1808/13688 doi:10.1086/651948 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1086/651948 |
container_title |
International Journal of Plant Sciences |
container_volume |
171 |
container_issue |
5 |
container_start_page |
560 |
op_container_end_page |
573 |
_version_ |
1766024556363907072 |