Chapter

Titanosauria: A Phylogenetic Overview

Kristina Curry Rogers

in The Sauropods

Published by University of California Press

Published in print December 2005 | ISBN: 9780520246232
Published online March 2012 | e-ISBN: 9780520932333 | DOI: http://dx.doi.org/10.1525/california/9780520246232.003.0003
Titanosauria: A Phylogenetic Overview

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This chapter reviews the current consensus with regard to titanosaur phylogeny and highlights the skeleton of Rapetosaurus krausei as a keystone taxon in current phylogenetic analyses. It also presents an analysis of titanosaur phylogeny that utilizes cranial and postcranial data. Titanosauria is among the most generic-rich of any sauropod clade, and few of the individual specimens include more than isolated postcranial elements. Rapetosaurus exhibits a suite of features that confirm its status as a titanosaur, and it is the only titanosaur with a wealth of both cranial and postcranial data. New data derived from such skeleton and skull highlight the fact that Titanosauria exhibited a wide range of morphologies and were not limited to a narrow window of variation. All analyses of titanosaur interrelationships have lacked a full body view for a diverse taxonomic sample due to the sheer lack of skeletal data for almost all titanosaur genera.

Keywords: titanosaur phylogeny; Titanosauria; Rapetosaurus krausei; skeleton; skull

Chapter.  33167 words.  Illustrated.

Subjects: Evolutionary Biology

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