A Divergence Dating Analysis of Turtles Using Fossil Calibrations: An Example of Best Practices
- W. Joyce, J. F. Parham, T. Lyson, R. Warnock, P. Donoghue
- Environmental Science, GeographyJournal of Paleontology
- 1 July 2013
This work provides the first explicitly justified minimum and soft maximum age constraints on 22 clades of turtles following best practice protocols and generates novel age-of-origination estimates for clades within crown Testudines.
A New Large-Bodied Oviraptorosaurian Theropod Dinosaur from the Latest Cretaceous of Western North America
- M. Lamanna, H. Sues, E. Schachner, T. Lyson
- Environmental Science, GeographyPLoS ONE
- 19 March 2014
Phylogenetic analysis indicates that Anzu is most closely related to Caenagnathus collinsi, a taxon that is definitively known only from a mandible from the Campanian Dinosaur Park Formation of Alberta, and the problematic oviraptorosaurs Microvenator and Gigantoraptor are recovered as basal caenagnaths, as has previously been suggested.
Evolutionary Origin of the Turtle Shell
- T. Lyson, G. S. Bever, T. Scheyer, Allison Y. Hsiang, J. Gauthier
- Biology, Environmental ScienceCurrent Biology
- 17 June 2013
Exceptional continental record of biotic recovery after the Cretaceous–Paleogene mass extinction
- T. Lyson, I. Miller, S. G. Chester
- Environmental Science, GeographyScience
- 24 October 2019
A time-calibrated stratigraphic section in Colorado is reported that contains unusually complete fossils of mammals, reptiles, and plants and elucidates the drivers and tempo of biotic recovery during the poorly known first million years after the Cretaceous–Paleogene mass extinction.
Evolutionary origin of the turtle skull
- G. Bever, T. Lyson, D. Field, B. Bhullar
- Environmental Science, BiologyNature
- 10 September 2015
High-resolution computed tomography and a novel character/taxon matrix are used to study the skull of Eunotosaurus africanus, a 260-million-year-old fossil reptile from the Karoo Basin of South Africa, whose distinctive postcranial skeleton shares many unique features with the shelled body plan of turtles.
Transitional fossils and the origin of turtles
- T. Lyson, G. S. Bever, B. Bhullar, W. Joyce, J. Gauthier
- Biology, Environmental ScienceBiology Letters
- 23 December 2010
This work reanalysed a recent dataset that allied turtles with the lizard–tuatara clade and found that the inclusion of the stem turtle Proganochelys quenstedti and the ‘parareptile’ Eunotosaurus africanus results in a single overriding morphological signal, with turtles outside Diapsida.
A Revision of Plesiobaena (Testudines: Baenidae) and an Assessment of Baenid Ecology Across the K/T Boundary
The phylogenetic analysis clearly reveals that Plesiobaena in the traditional sense is a paraphyletic assemblage relative to the clade formed by Gamerabaena sonsalla and Palatobaena spp.
MicroRNAs support a turtle + lizard clade
- T. Lyson, E. Sperling, Alysha M. Heimberg, J. Gauthier, B. King, K. Peterson
- Biology, Environmental ScienceBiology Letters
- 23 February 2012
A novel molecular dataset, the presence versus absence of specific microRNAs, is applied to the problem of the phylogenetic position of turtles and the root of the reptilian tree, and it is found that this dataset unambiguously supports a turtle + lepidosaur group.
Fossorial Origin of the Turtle Shell
- T. Lyson, B. Rubidge, G. S. Bever
- Environmental Science, GeographyCurrent Biology
- 25 July 2016
A Review of the Fossil Record of Turtles of the Clade Baenidae
Baenids were warmadapted freshwater aquatic turtles that supported high levels of diversity at times through niche partitioning, particularly by adapting to a broad range of dietary preferences ranging from omnivorous to molluscivorous.
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