Phylogeny of basal iguanodonts (Dinosauria: Ornithischia): an update.

The precise phylogenetic relationships of many non-hadrosaurid members of Iguanodontia, i.e., basal iguanodonts, have been unclear. Therefore, to investigate the global phylogeny of basal iguanodonts a comprehensive data matrix was assembled, including nearly every valid taxon of basal iguanodont. T...

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Autor principal:	Andrew T McDonald
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f1b7891522e74d68a4f0e5ac423ede70
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spelling	oai:doaj.org-article:f1b7891522e74d68a4f0e5ac423ede702021-11-18T07:17:52ZPhylogeny of basal iguanodonts (Dinosauria: Ornithischia): an update.1932-620310.1371/journal.pone.0036745https://doaj.org/article/f1b7891522e74d68a4f0e5ac423ede702012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22629328/?tool=EBIhttps://doaj.org/toc/1932-6203The precise phylogenetic relationships of many non-hadrosaurid members of Iguanodontia, i.e., basal iguanodonts, have been unclear. Therefore, to investigate the global phylogeny of basal iguanodonts a comprehensive data matrix was assembled, including nearly every valid taxon of basal iguanodont. The matrix was analyzed in the program TNT, and the maximum agreement subtree of the resulting most parsimonious trees was then calculated in PAUP. Ordering certain multistate characters and omitting taxa through safe taxonomic reduction did not markedly improve resolution. The results provide some new information on the phylogeny of basal iguanodonts, pertaining especially to obscure or recently described taxa, and support some recent taxonomic revisions, such as the splitting of traditional "Camptosaurus" and "Iguanodon". The maximum agreement subtree also shows a close relationship between the Asian Probactrosaurus gobiensis and the North American Eolambia, supporting the previous hypothesis of faunal interchange between Asia and North America in the early Late Cretaceous. Nevertheless, the phylogenetic relationships of many basal iguanodonts remain ambiguous due to the high number of taxa removed from the maximum agreement subtree and poor resolution of consensus trees.Andrew T McDonaldPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 5, p e36745 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Andrew T McDonald Phylogeny of basal iguanodonts (Dinosauria: Ornithischia): an update.
description	The precise phylogenetic relationships of many non-hadrosaurid members of Iguanodontia, i.e., basal iguanodonts, have been unclear. Therefore, to investigate the global phylogeny of basal iguanodonts a comprehensive data matrix was assembled, including nearly every valid taxon of basal iguanodont. The matrix was analyzed in the program TNT, and the maximum agreement subtree of the resulting most parsimonious trees was then calculated in PAUP. Ordering certain multistate characters and omitting taxa through safe taxonomic reduction did not markedly improve resolution. The results provide some new information on the phylogeny of basal iguanodonts, pertaining especially to obscure or recently described taxa, and support some recent taxonomic revisions, such as the splitting of traditional "Camptosaurus" and "Iguanodon". The maximum agreement subtree also shows a close relationship between the Asian Probactrosaurus gobiensis and the North American Eolambia, supporting the previous hypothesis of faunal interchange between Asia and North America in the early Late Cretaceous. Nevertheless, the phylogenetic relationships of many basal iguanodonts remain ambiguous due to the high number of taxa removed from the maximum agreement subtree and poor resolution of consensus trees.
format	article
author	Andrew T McDonald
author_facet	Andrew T McDonald
author_sort	Andrew T McDonald
title	Phylogeny of basal iguanodonts (Dinosauria: Ornithischia): an update.
title_short	Phylogeny of basal iguanodonts (Dinosauria: Ornithischia): an update.
title_full	Phylogeny of basal iguanodonts (Dinosauria: Ornithischia): an update.
title_fullStr	Phylogeny of basal iguanodonts (Dinosauria: Ornithischia): an update.
title_full_unstemmed	Phylogeny of basal iguanodonts (Dinosauria: Ornithischia): an update.
title_sort	phylogeny of basal iguanodonts (dinosauria: ornithischia): an update.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/f1b7891522e74d68a4f0e5ac423ede70
work_keys_str_mv	AT andrewtmcdonald phylogenyofbasaliguanodontsdinosauriaornithischiaanupdate
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Phylogeny of basal iguanodonts (Dinosauria: Ornithischia): an update.

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