A refined modelling approach to assess the influence of sampling on palaeobiodiversity curves: new support for declining Cretaceous dinosaur richness
@article{Lloyd2011ARM, title={A refined modelling approach to assess the influence of sampling on palaeobiodiversity curves: new support for declining Cretaceous dinosaur richness}, author={Graeme T. Lloyd}, journal={Biology Letters}, year={2011}, volume={8}, pages={123 - 126} }
Modelling has been underdeveloped with respect to constructing palaeobiodiversity curves, but it offers an additional tool for removing sampling from their estimation. Here, an alternative to subsampling approaches, which often require large sample sizes, is explored by the extension and refinement of a pre-existing modelling technique that uses a geological proxy for sampling. Application of the model to the three main clades of dinosaurs suggests that much of their diversity fluctuations…
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References
SHOWING 1-10 OF 13 REFERENCES
Dinosaur diversity and the rock record
- Environmental Science, GeographyProceedings of the Royal Society B: Biological Sciences
- 2009
Strong statistically robust correlations demonstrate that almost all aspects of ornithischian and theropod diversity curves can be explained by geological megabiases, whereas the sauropodomorph record diverges from modelled predictions and may be a stronger contender for identifying evolutionary signals.
Effects of sampling standardization on estimates of Phanerozoic marine diversification
- Environmental Science, GeographyProceedings of the National Academy of Sciences of the United States of America
- 2001
A new database of this kind for the Phanerozoic fossil record of marine invertebrates is introduced and four substantially distinct analytical methods that estimate taxonomic diversity by quantifying and correcting for variation through time in the number and nature of inventories are applied.
Testing the effect of the rock record on diversity: a multidisciplinary approach to elucidating the generic richness of sauropodomorph dinosaurs through time
- Environmental Science, GeographyBiological reviews of the Cambridge Philosophical Society
- 2011
Despite its distortion by sampling biases, much of sauropodomorph palaeobiodiversity can be interpreted as a reflection of genuine biological signals, and fluctuations in sea level may account for some of these diversity patterns.
THE SHAPE OF THE PHANEROZOIC MARINE PALAEODIVERSITY CURVE: HOW MUCH CAN BE PREDICTED FROM THE SEDIMENTARY ROCK RECORD OF WESTERN EUROPE?
- Environmental Science, Geography
- 2007
Abstract: Palaeodiversity curves are constructed from counts of fossils collected at outcrop and thus potentially biased by variation in the rock record, specifically by the amount of sedimentary…
Sea level, dinosaur diversity and sampling biases: investigating the ‘common cause’ hypothesis in the terrestrial realm
- Environmental Science, GeographyProceedings of the Royal Society B: Biological Sciences
- 2010
The fossil record is our primary window onto the diversification of ancient life, but there are widespread concerns that sampling biases may distort observed palaeodiversity counts. Such concerns…
Geologic constraints on the macroevolutionary history of marine animals.
- Environmental Science, GeographyProceedings of the National Academy of Sciences of the United States of America
- 2005
This work compares the rates of expansion and truncation of preserved marine sedimentary basins to rates of origination and extinction among Phanerozoic marine animal genera and suggests that the processes responsible for producing variability in the sedimentary rock record, such as plate tectonics and sea-level change, may have been dominant and consistent macroevolutionary forces throughout the Phanrozoic.
Mesozoic marine tetrapod diversity: mass extinctions and temporal heterogeneity in geological megabiases affecting vertebrates
- Environmental Science, GeographyProceedings of the Royal Society B: Biological Sciences
- 2009
Some evidence supports an extinction event near the Jurassic/Cretaceous boundary, but the proposed end-Cenomanian extinction is probably an artefact of poor sampling, and consideration of sampling biases allows re-evaluation of proposed mass extinction events.
The Shifting Balance of Diversity Among Major Marine Animal Groups
- Environmental Science, GeographyScience
- 2010
Future assemblies of animals following mass extinction cannot be predicted by analyses of Phanerozoic fossils, and the current global crisis may permanently alter the biosphere’s taxonomic composition by changing the rules of evolution.
Climate, Critters, and Cetaceans: Cenozoic Drivers of the Evolution of Modern Whales
- Environmental Science, GeographyScience
- 2010
Based on a comprehensive diversity data set, much of observed cetacean paleodiversity can indeed be explained by diatom diversity in conjunction with variations in climate as indicated by oxygen stable isotope records (δ18O).