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STRATI 2013 pp 1013-1016 | Cite as

Triassic Timescale Based on Tetrapod Biostratigraphy and Biochronology

  • Spencer G. LucasEmail author
  • Lawrence H. Tanner
Conference paper
Part of the Springer Geology book series (SPRINGERGEOL)

Abstract

The biochronology based on the global biostratigraphy of tetrapod fossils allows the Triassic System to be divided into eight land-vertebrate faunachrons based mainly on the first appearance datums of tetrapod genera. Temporal resolution may be improved by subdivision of these faunachrons. We note, however, that this biochronology is undermined by the use of cladotaxonomy. The Triassic tetrapod footprint biochronology has lower resolution, dividing the entire system into five footprint-based biochrons. The temporal resolution of this biochronology also may be improved through subdivision based on ichnotaxon range zones.

Keywords

Triassic Tetrapods Footprints Biochronology Land-vertebrate faunachrons 

References

  1. Feduccia, A. (1999). 1, 2, 3 = 2, 3, 4: Accommodating the cladogram. Proceedings of the National Academy Sciences USA,96, 4740–4742.CrossRefGoogle Scholar
  2. Klein, H., & Lucas, S. G. (2010). Tetrapod footprints—their use in biostratigraphy and biochronology of the Triassic. Geol. Soc. London. Geological Society London Special Publications,334, 419–446.CrossRefGoogle Scholar
  3. Lucas, S. G. (2010). The Triassic timescale based on nonmarine tetrapod biostratigraphy and biochronology. Geological Society London Special Publications,334, 447–500.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.New Mexico Museum of Natural HistoryAlbuquerqueUSA
  2. 2.Department of Biological SciencesLe Moyne CollegeSyracuseUSA

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