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Mesozoic marine tetrapod diversity: mass extinctions and temporal heterogeneity in geological megabiases affecting vertebrates

Benson, Roger B. J.; Butler, Richard J.; Lindgren, Johan LU and Smith, Adam S. (2010) In Royal Society of London. Proceedings B. Biological Sciences 277(1683). p.829-834
Abstract
The fossil record is our only direct means for evaluating shifts in biodiversity through Earth's history. However, analyses of fossil marine invertebrates have demonstrated that geological megabiases profoundly influence fossil preservation and discovery, obscuring true diversity signals. Comparable studies of vertebrate palaeodiversity patterns remain in their infancy. A new species-level dataset of Mesozoic marine tetrapod occurrences was compared with a proxy for temporal variation in the volume and facies diversity of fossiliferous rock ( number of marine fossiliferous formations: FMF). A strong correlation between taxic diversity and FMF is present during the Cretaceous. Weak or no correlation of Jurassic data suggests a qualitatively... (More)
The fossil record is our only direct means for evaluating shifts in biodiversity through Earth's history. However, analyses of fossil marine invertebrates have demonstrated that geological megabiases profoundly influence fossil preservation and discovery, obscuring true diversity signals. Comparable studies of vertebrate palaeodiversity patterns remain in their infancy. A new species-level dataset of Mesozoic marine tetrapod occurrences was compared with a proxy for temporal variation in the volume and facies diversity of fossiliferous rock ( number of marine fossiliferous formations: FMF). A strong correlation between taxic diversity and FMF is present during the Cretaceous. Weak or no correlation of Jurassic data suggests a qualitatively different sampling regime resulting from five apparent peaks in Triassic-Jurassic diversity. These correspond to a small number of European formations that have been the subject of intensive collecting, and represent 'Lagerstatten effects'. Consideration of sampling biases allows re-evaluation of proposed mass extinction events. Marine tetrapod diversity declined during the Carnian or Norian. However, the proposed end-Triassic extinction event cannot be recognized with confidence. Some evidence supports an extinction event near the Jurassic/Cretaceous boundary, but the proposed end-Cenomanian extinction is probably an artefact of poor sampling. Marine tetrapod diversity underwent a long-term decline prior to the Cretaceous-Palaeogene extinction. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
extinction, marine reptiles, mass, rock record bias, palaeodiversity, Mesozoic biodiversity
in
Royal Society of London. Proceedings B. Biological Sciences
volume
277
issue
1683
pages
829 - 834
publisher
Royal Society
external identifiers
  • wos:000274328400002
  • scopus:77950238636
ISSN
1471-2954
DOI
10.1098/rspb.2009.1845
language
English
LU publication?
yes
id
f0a0c970-6a03-4efb-83ac-f5caa5a45405 (old id 1569047)
date added to LUP
2010-03-17 10:31:28
date last changed
2018-05-29 11:05:29
@article{f0a0c970-6a03-4efb-83ac-f5caa5a45405,
  abstract     = {The fossil record is our only direct means for evaluating shifts in biodiversity through Earth's history. However, analyses of fossil marine invertebrates have demonstrated that geological megabiases profoundly influence fossil preservation and discovery, obscuring true diversity signals. Comparable studies of vertebrate palaeodiversity patterns remain in their infancy. A new species-level dataset of Mesozoic marine tetrapod occurrences was compared with a proxy for temporal variation in the volume and facies diversity of fossiliferous rock ( number of marine fossiliferous formations: FMF). A strong correlation between taxic diversity and FMF is present during the Cretaceous. Weak or no correlation of Jurassic data suggests a qualitatively different sampling regime resulting from five apparent peaks in Triassic-Jurassic diversity. These correspond to a small number of European formations that have been the subject of intensive collecting, and represent 'Lagerstatten effects'. Consideration of sampling biases allows re-evaluation of proposed mass extinction events. Marine tetrapod diversity declined during the Carnian or Norian. However, the proposed end-Triassic extinction event cannot be recognized with confidence. Some evidence supports an extinction event near the Jurassic/Cretaceous boundary, but the proposed end-Cenomanian extinction is probably an artefact of poor sampling. Marine tetrapod diversity underwent a long-term decline prior to the Cretaceous-Palaeogene extinction.},
  author       = {Benson, Roger B. J. and Butler, Richard J. and Lindgren, Johan and Smith, Adam S.},
  issn         = {1471-2954},
  keyword      = {extinction,marine reptiles,mass,rock record bias,palaeodiversity,Mesozoic biodiversity},
  language     = {eng},
  number       = {1683},
  pages        = {829--834},
  publisher    = {Royal Society},
  series       = {Royal Society of London. Proceedings B. Biological Sciences},
  title        = {Mesozoic marine tetrapod diversity: mass extinctions and temporal heterogeneity in geological megabiases affecting vertebrates},
  url          = {http://dx.doi.org/10.1098/rspb.2009.1845},
  volume       = {277},
  year         = {2010},
}