BONE PROFILER: A TOOL TO QUANTIFY, MODEL, AND STATISTICALLY COMPARE BONE-SECTION COMPACTNESS PROFILES
This work focuses on compactness (amount of bone present on a given surface) because this characteristic has previously been suspected to provide much information about the life style of taxa (Laurin et al., 2000), and because it can be measured relatively easily from a bone section.
A reevaluation of early amniote phylogeny
It is indicated that three major clades of amniotes extend from the present to the Palaeozoic, and these three clades are the Synapsida (including Mammalia), Parareptilia (including Testudines), and Eureptili (including Sauria).
The evolution of body size, Cope's rule and the origin of amniotes.
- M. Laurin
- Biology, Environmental ScienceSystematic biology
- 1 August 2004
Character optimization, permutational multiple linear regressions, and independent contrast analyses show that Cope's rule of phyletic size increase applies to early reptiliomorphs but that it does not apply to early stegocephalians globally.
Fossils, molecules, divergence times, and the origin of lissamphibians.
A review of the paleontological literature shows that the early dates of appearance of Lissamphibia recently inferred from molecular data do not favor an origin of extant amphibians from…
FINS INTO LIMBS: EVOLUTION, DEVELOPMENT AND TRANSFORMATION
- M. Laurin
- 1 December 2007
This book provides a review of recent work on fins, limbs, and their evolution, and is timely because the evolution of fins and limbs has probably not been reviewed nearly as intensively as the more general but related problem of the conquest of land by vertebrates.
Evolution of bone microanatomy of the tetrapod tibia and its use in palaeobiological inference
- A. Kriloff, D. Germain, A. Canoville, P. Vincent, M. Sache, M. Laurin
- Environmental Science, GeographyJournal of Evolutionary Biology
- 1 May 2008
Lifestyle is inferred to have been terrestrial for the stem‐tetrapod Discosauriscus, the basal synapsid Dimetrodon, the dicynodont therapsid Dicynodon, an unindentified gorgonopsian, and the parareptile Pareiasaurus, which is modelled as being aquatic, but was more likely amphibious.
Confirmation of Romer's Gap as a low oxygen interval constraining the timing of initial arthropod and vertebrate terrestrialization
- P. Ward, C. Labandeira, M. Laurin, R. Berner
- Environmental Science, GeographyProceedings of the National Academy of Sciences
- 7 November 2006
It is argued that geochronologic range data of terrestrial arthropods show a pattern similar to that of vertebrates, and Romer's Gap is real, occupied an interval from 360 million years before present (MYBP) to 345 MYBP, and occurred when environmental conditions were unfavorable for air-breathing, terrestrial animals.
CRANIAL MORPHOLOGY AND AFFINITIES OF MICROBRACHIS, AND A REAPPRAISAL OF THE PHYLOGENY AND LIFESTYLE OF THE FIRST AMPHIBIANS
An anatomical study of Microbrachis reveals inaccuracies in previous studies, especially in the palate and cranial proportions, which corroborates previous suggestions that lissamphibians are part of a clade that includes the taxa classically referred to as “lepospondyls,” and that seymouriamorphs and temnospONDyls are not part of Tetrapoda.
CHAPTER 2 – A NEW PERSPECTIVE ON TETRAPOD PHYLOGENY
The osteology of a Lower Permian eosuchian from Texas and a review of diapsid phylogeny
- M. Laurin
A phylogenetic analysis suggests that younginiforms are not part of the crown group of diapsids, and Apsisaurus witteri is identified as a diapsid, based on the presence of both a lateral temporal fenestra and a suborbital fenESTra.