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- Publications
- Influence
A Divergence Dating Analysis of Turtles Using Fossil Calibrations: An Example of Best Practices
- W. Joyce, J. Parham, T. Lyson, R. Warnock, P. Donoghue
- Biology
- 18 July 2013
Abstract Turtles have served as a model system for molecular divergence dating studies using fossil calibrations. However, because some parts of the fossil record of turtles are very well known,… Expand
Evolutionary Origin of the Turtle Shell
- T. Lyson, G. Bever, T. Scheyer, Allison Y. Hsiang, J. Gauthier
- Biology, Medicine
- Current Biology
- 17 June 2013
The origin of the turtle shell has perplexed biologists for more than two centuries. It was not until Odontochelys semitestacea was discovered, however, that the fossil and developmental data could… Expand
A New Large-Bodied Oviraptorosaurian Theropod Dinosaur from the Latest Cretaceous of Western North America
- M. Lamanna, H. Sues, E. R. Schachner, T. Lyson
- Biology, Medicine
- PloS one
- 19 March 2014
The oviraptorosaurian theropod dinosaur clade Caenagnathidae has long been enigmatic due to the incomplete nature of nearly all described fossils. Here we describe Anzu wyliei gen. et sp. nov., a new… Expand
A Revision of Plesiobaena (Testudines: Baenidae) and an Assessment of Baenid Ecology Across the K/T Boundary
Abstract Over the course of the last two decades, the baenid taxon Plesiobaena has typically been thought to consist of two named species, Plesiobaena antiqua (Campanian) and Plesiobaena putorius… Expand
Cranial Anatomy and Phylogenetic Placement of the Enigmatic Turtle Compsemys victa Leidy, 1856
Abstract The skull of the enigmatic turtle Compsemys victa Leidy, 1856 is described. A number of unique characteristics are apparent, including the extremely thick nature of all cranial bones, the… Expand
MicroRNAs support a turtle + lizard clade
- T. Lyson, E. Sperling, Alysha M Heimberg, J. Gauthier, B. King, K. Peterson
- Biology, Medicine
- Biology Letters
- 23 February 2012
Despite much interest in amniote systematics, the origin of turtles remains elusive. Traditional morphological phylogenetic analyses place turtles outside Diapsida—amniotes whose ancestor had two… Expand
Transitional fossils and the origin of turtles
- T. Lyson, G. Bever, Bhart-Anjan S Bhullar, W. Joyce, J. Gauthier
- Biology, Medicine
- Biology Letters
- 23 December 2010
The origin of turtles is one of the most contentious issues in systematics with three currently viable hypotheses: turtles as the extant sister to (i) the crocodile–bird clade, (ii) the… Expand
A New Species of Palatobaena (Testudines: Baenidae) and a Maximum Parsimony and Bayesian Phylogenetic Analysis of Baenidae
Abstract New Palatobaena material from the Hell Creek Formation (Maastrichtian), including the first skull and shell association, from southwestern North Dakota represents a new species named herein… Expand
Toward consilience in reptile phylogeny: miRNAs support an archosaur, not lepidosaur, affinity for turtles
- D. Field, J. Gauthier, B. King, D. Pisani, T. Lyson, K. Peterson
- Biology, Medicine
- Evolution & development
- 7 May 2014
Understanding the phylogenetic position of crown turtles (Testudines) among amniotes has been a source of particular contention. Recent morphological analyses suggest that turtles are sister to all… Expand
Evolutionary origin of the turtle skull
- G. Bever, T. Lyson, D. Field, Bhart-Anjan S Bhullar
- Biology, Medicine
- Nature
- 10 September 2015
Transitional fossils informing the origin of turtles are among the most sought-after discoveries in palaeontology. Despite strong genomic evidence indicating that turtles evolved from within the… Expand