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April 10, 2026LethaiaOpen Access

Ichnology of the Lower Ordovician Landeyran Formation, Montagne Noire, France and criteria for distinguishing simple trace fossils from body fossils

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Authors

RGRomain GougeonRVRomain VaucherMVMuriel Vidal

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Overview

Describes trace fossils in the Lower Ordovician Landeyran Formation, highlighting their significance in understanding ancient ecosystems.

Key Points

  • To explore the ichnology of the Cabrières Biota and establish criteria for distinguishing trace fossils from body fossils.
  • Described trace fossils from the mudstone-dominated Lower Ordovician Landeyran Formation.
  • Analyzed ichnological metrics to assess bioturbation and ichnodiversity.
  • Reviewed criteria to differentiate trace fossils from body fossils.
  • Identified various trace fossils, including Helminthoidichnites and Palaeophycus.
  • Inferred that sediment conditions fluctuated between anoxia and dysoxia, impacting fossil preservation.
  • Developed five criteria for distinguishing trace fossils from body fossils.

Cite This Study

Gougeon et al. (2025) studied this question.

synapsesocial.com/papers/69d895206c1944d70ce061cahttps://doi.org/10.18261/let.59.2.5
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