A marine stem-tetrapod from the Devonian of western North America.

The origin of terrestrial vertebrates represents one of the major evolutionary and ecological transformations in the history of life, and the established timing and environment of this transition has recently come under scrutiny. The discovery and description of a well-preserved fossil sarcopterygia...

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Main Author:	Brian Swartz
Format:	article
Language:	EN
Published:	Public Library of Science (PLoS) 2012
Subjects:	Medicine R Science Q
Online Access:	https://doaj.org/article/4cc50ffb225a4e2da8d03b09ef96af60
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spelling	oai:doaj.org-article:4cc50ffb225a4e2da8d03b09ef96af602021-11-18T07:24:40ZA marine stem-tetrapod from the Devonian of western North America.1932-620310.1371/journal.pone.0033683https://doaj.org/article/4cc50ffb225a4e2da8d03b09ef96af602012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22448265/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203The origin of terrestrial vertebrates represents one of the major evolutionary and ecological transformations in the history of life, and the established timing and environment of this transition has recently come under scrutiny. The discovery and description of a well-preserved fossil sarcopterygian (fleshy-limbed vertebrate) from the Middle Devonian of Nevada helps to refine and question aspects of the temporal and anatomical framework that underpins the tetrapod condition. This new taxon, Tinirau clackae, demonstrates that substantial parallelism pervaded the early history of stem-tetrapods, raises additional questions about when digited sarcopterygians first evolved, and further documents that incipient stages of the terrestrial appendicular condition began when sarcopterygians still retained their median fins and occupied aquatic habitats.Brian SwartzPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 3, p e33683 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Brian Swartz A marine stem-tetrapod from the Devonian of western North America.
description	The origin of terrestrial vertebrates represents one of the major evolutionary and ecological transformations in the history of life, and the established timing and environment of this transition has recently come under scrutiny. The discovery and description of a well-preserved fossil sarcopterygian (fleshy-limbed vertebrate) from the Middle Devonian of Nevada helps to refine and question aspects of the temporal and anatomical framework that underpins the tetrapod condition. This new taxon, Tinirau clackae, demonstrates that substantial parallelism pervaded the early history of stem-tetrapods, raises additional questions about when digited sarcopterygians first evolved, and further documents that incipient stages of the terrestrial appendicular condition began when sarcopterygians still retained their median fins and occupied aquatic habitats.
format	article
author	Brian Swartz
author_facet	Brian Swartz
author_sort	Brian Swartz
title	A marine stem-tetrapod from the Devonian of western North America.
title_short	A marine stem-tetrapod from the Devonian of western North America.
title_full	A marine stem-tetrapod from the Devonian of western North America.
title_fullStr	A marine stem-tetrapod from the Devonian of western North America.
title_full_unstemmed	A marine stem-tetrapod from the Devonian of western North America.
title_sort	marine stem-tetrapod from the devonian of western north america.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/4cc50ffb225a4e2da8d03b09ef96af60
work_keys_str_mv	AT brianswartz amarinestemtetrapodfromthedevonianofwesternnorthamerica AT brianswartz marinestemtetrapodfromthedevonianofwesternnorthamerica
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A marine stem-tetrapod from the Devonian of western North America.

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