New basal iguanodonts from the Cedar Mountain formation of Utah and the evolution of thumb-spiked dinosaurs.

<h4>Background</h4>Basal iguanodontian dinosaurs were extremely successful animals, found in great abundance and diversity almost worldwide during the Early Cretaceous. In contrast to Europe and Asia, the North American record of Early Cretaceous basal iguanodonts has until recently been...

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Autores principales:	Andrew T McDonald, James I Kirkland, Donald D DeBlieux, Scott K Madsen, Jennifer Cavin, Andrew R C Milner, Lukas Panzarin
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2010
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6bc945230077408fa95f7ed8a3d94c26
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spelling	oai:doaj.org-article:6bc945230077408fa95f7ed8a3d94c262021-11-18T07:36:39ZNew basal iguanodonts from the Cedar Mountain formation of Utah and the evolution of thumb-spiked dinosaurs.1932-620310.1371/journal.pone.0014075https://doaj.org/article/6bc945230077408fa95f7ed8a3d94c262010-11-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21124919/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Basal iguanodontian dinosaurs were extremely successful animals, found in great abundance and diversity almost worldwide during the Early Cretaceous. In contrast to Europe and Asia, the North American record of Early Cretaceous basal iguanodonts has until recently been limited largely to skulls and skeletons of Tenontosaurus tilletti.<h4>Methodology/principal findings</h4>Herein we describe two new basal iguanodonts from the Yellow Cat Member of the Cedar Mountain Formation of eastern Utah, each known from a partial skull and skeleton. Iguanacolossus fortis gen. et sp. nov. and Hippodraco scutodens gen. et sp. nov. are each diagnosed by a single autapomorphy and a unique combination of characters.<h4>Conclusions/significance</h4>Iguanacolossus and Hippodraco add greatly to our knowledge of North American basal iguanodonts and prompt a new comprehensive phylogenetic analysis of basal iguanodont relationships. This analysis indicates that North American Early Cretaceous basal iguanodonts are more basal than their contemporaries in Europe and Asia.Andrew T McDonaldJames I KirklandDonald D DeBlieuxScott K MadsenJennifer CavinAndrew R C MilnerLukas PanzarinPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 5, Iss 11, p e14075 (2010)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Andrew T McDonald James I Kirkland Donald D DeBlieux Scott K Madsen Jennifer Cavin Andrew R C Milner Lukas Panzarin New basal iguanodonts from the Cedar Mountain formation of Utah and the evolution of thumb-spiked dinosaurs.
description	<h4>Background</h4>Basal iguanodontian dinosaurs were extremely successful animals, found in great abundance and diversity almost worldwide during the Early Cretaceous. In contrast to Europe and Asia, the North American record of Early Cretaceous basal iguanodonts has until recently been limited largely to skulls and skeletons of Tenontosaurus tilletti.<h4>Methodology/principal findings</h4>Herein we describe two new basal iguanodonts from the Yellow Cat Member of the Cedar Mountain Formation of eastern Utah, each known from a partial skull and skeleton. Iguanacolossus fortis gen. et sp. nov. and Hippodraco scutodens gen. et sp. nov. are each diagnosed by a single autapomorphy and a unique combination of characters.<h4>Conclusions/significance</h4>Iguanacolossus and Hippodraco add greatly to our knowledge of North American basal iguanodonts and prompt a new comprehensive phylogenetic analysis of basal iguanodont relationships. This analysis indicates that North American Early Cretaceous basal iguanodonts are more basal than their contemporaries in Europe and Asia.
format	article
author	Andrew T McDonald James I Kirkland Donald D DeBlieux Scott K Madsen Jennifer Cavin Andrew R C Milner Lukas Panzarin
author_facet	Andrew T McDonald James I Kirkland Donald D DeBlieux Scott K Madsen Jennifer Cavin Andrew R C Milner Lukas Panzarin
author_sort	Andrew T McDonald
title	New basal iguanodonts from the Cedar Mountain formation of Utah and the evolution of thumb-spiked dinosaurs.
title_short	New basal iguanodonts from the Cedar Mountain formation of Utah and the evolution of thumb-spiked dinosaurs.
title_full	New basal iguanodonts from the Cedar Mountain formation of Utah and the evolution of thumb-spiked dinosaurs.
title_fullStr	New basal iguanodonts from the Cedar Mountain formation of Utah and the evolution of thumb-spiked dinosaurs.
title_full_unstemmed	New basal iguanodonts from the Cedar Mountain formation of Utah and the evolution of thumb-spiked dinosaurs.
title_sort	new basal iguanodonts from the cedar mountain formation of utah and the evolution of thumb-spiked dinosaurs.
publisher	Public Library of Science (PLoS)
publishDate	2010
url	https://doaj.org/article/6bc945230077408fa95f7ed8a3d94c26
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New basal iguanodonts from the Cedar Mountain formation of Utah and the evolution of thumb-spiked dinosaurs.

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