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March 22, 2026Open Access

Otolith morphometry of Ambassidae (Teleostei: Perciformes) reveals species diversity and faunal exchange in the late Burdigalian of the North Alpine Foreland Basin and the Central Paratethys

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Authors

LGLukas GeggBRBettina Reichenbacher

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Overview

Quantitative analysis of fossil otoliths uncovers species diversity in fishes, highlighting ecological exchange in ancient environments.

Key Points

  • This research aims to clarify species-level diversity of Ambassidae fossils and explore their ecological implications.
  • Analyzed 51 otoliths from the North Alpine Foreland Basin and 8 from the Central Paratethys.
  • Employed a quantitative approach involving 12 otolith variables.
  • Used univariate and multivariate statistical analyses to assess species diversity.
  • Identified three ambassid species, including one new species, Parambassis? pipperrae.
  • Demonstrated co-occurrence of species suggests ecologically structured assemblages.
  • Evidence of faunal exchange exists, notably with a shared species, †Dapalis formosus, between two basins.

Cite This Study

Gegg et al. (2026) studied this question.

synapsesocial.com/papers/69bf8978f665edcd009e926dhttps://doi.org/10.6094/unifr/278998
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