The aquatic and semiaquatic biota in Miocene amber from the Campo LA Granja mine (Chiapas,Mexico): Paleoenvironmental implications |
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| Institution: | 1. Department of Biology I, University of Munich (LMU), Systematic Botany and Mykology, GeoBio-Center, Menzinger Str. 67, 80638 Munich, Germany;2. Department of Biosciences, P.O. Box 65, FIN-00014 University of Helsinki, Finland;3. Department of Pharmaceutical and Pharmacological Sciences, University of Padova, via Marzolo 5, 35131 Padova, Italy;4. Botany Department of Eszterházy College, Institute of Biology, Eger Pf. 43, H-3301 Hungary;5. Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Largo E. Meneghetti 2, 35131 Padova, Italy;6. Royal Botanic Gardens and Domain Trust, Mrs Macquaries Road, Sydney, NSW 2000, Australia;7. Mittlere Letten 11, 88634 Herdwangen-Schönach, Germany;8. Senckenberg Forschungsinstitut und Naturmuseum, Senckenberganlage 25, 60325 Frankfurt am Main, Germany;9. University Library Vienna, Departmental Library Botany, Rennweg 14, A-1030 Vienna, Austria;10. Department of Geobiology, University of Göttingen, Goldschmidtstraße 3, 37077 Göttingen, Germany |
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| Abstract: | Amber from the Campo La Granja mine in Chiapas, Mexico, is distinct from other sources of amber in Chiapas. Campo La Granja amber has distinct layers created by successive flows of resin with thin layers of sand on most surfaces. Aquatic and semi-aquatic arthropods are commonly found. Together these pieces of evidence suggest an estuarine environment similar to modern mangrove communities. The aquatic crustaceans are the most intriguing aspect of the biota. A large number of ostracods have been found in the amber—many with their carapaces open, suggesting that they were alive and submerged in water at the time of entombment. The only known examples of brachyuran crabs preserved in amber are found in the Campo La Granja amber. Amphipods, copepods, isopods, and tanaids are also members of the crustacean fauna preserved in amber. |
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| Keywords: | Amber Miocene Mexico Aquatic biota Paleoenvironment |
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