Morphologic and taxonomic history of Paleozoic ammonoids in time and morphospace

@inproceedings{Saunders2008MorphologicAT,
  title={Morphologic and taxonomic history of Paleozoic ammonoids in time and morphospace},
  author={W. Saunders and Emily Greenfest-Allen and D. Work and S. Nikolaeva},
  booktitle={Paleobiology},
  year={2008}
}
Abstract Principal components analysis (PCA) of 21 shell parameters (geometry, sculpture, aperture shape, and suture complexity) in 597 L. Devonian to L. Triassic ammonoid genera (spanning ∼166 Myr) shows that eight basic morphotypes appeared within ∼20 Myr of the first appearance of ammonoids. With one exception, these morphotypes persisted throughout the Paleozoic, occurring in ∼75% of the ∼5-Myr time bins used in this study. Morphotypes were not exclusive to particular lineages. Their… Expand
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References

SHOWING 1-10 OF 85 REFERENCES
Morphology and morphologic diversity of mid-Carboniferous (Namurian) ammonoids in time and space
Evolution of ammonoid morphospace during the Early Jurassic radiation
Morphological diversification of Paleozoic crinoids
Ammonoid Life and Habitat
Shell morphology and suture complexity in Upper Carboniferous ammonoids
...
1
2
3
4
5
...