Oligocene and early Miocene mammal biostratigraphy of the Valley of Lakes in Mongolia
- Harzhauser, Mathias Natural History Museum Vienna, Austria
- Daxner-Höck, Gudrun Natural History Museum Vienna, Austria
- Erbajeva, Margarita A. Geological Institute, Siberian BranchRussian Academy of Sciences, Ulan-Ude, Russia
- López-Guerrero, Paloma
- Maridet, Olivier Jurassica MuseumPorrentruySwitzerland - Department of Geosciences, Earth SciencesUniversity of Fribourg, Switzerland
- Oliver, Adriana Natural History Museum Vienna, Austria - Paleobiology DepartmentMuseo Nacional de Ciencias Naturales-CSIC, Madrid, Spain
- Piller, Werner E. Institute of Earth Sciences, NAWI Graz GeocenterUniversity of Graz, Austria
- Göhlich, Ursula B. Natural History Museum Vienna, Austria
- Ziegler, Reinhard Staatliches Museum für Naturkunde Stuttgar, Germany
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01.03.2017
Published in:
- Palaeobiodiversity and Palaeoenvironments. - 2017, vol. 97, no. 1, p. 219–231
English
The Taatsiin Gol Basin in Mongolia is a key area for understanding the evolution and dispersal of Central Asian mammal faunas during the Oligocene and early Miocene. After two decades of intense fieldwork, the area is extraordinarily well sampled and taxonomically well studied, yielding a large dataset of 19,042 specimens from 60 samples. The specimens represent 176 species-level and 99 genus-level taxa comprising 135 small mammal species and 47 large mammals. A detailed lithostratigraphy and new magnetostratigraphic and radiometric datings provide an excellent frame for these biotic data. Therefore, we test and evaluate the informal biozonation scheme that has been traditionally used for biostratigraphic correlations within the basin. Based on the analysis of the huge dataset, a formalised biostratigraphic scheme is proposed. It comprises the Cricetops dormitor Taxon Range Zone (Rupelian), subdivided into the Allosminthus khandae Taxon Range Subzone and the Huangomys frequens Abundance Subzone, the Amphechinus taatsiingolensis Abundance Zone (early Chattian), the Amphechinus major Taxon Range Zone (late Chattian), subdivided into the Yindirtemys deflexus Abundance Subzone and the Upper Amphechinus major T. R. Z., and the Tachyoryctoides kokonorensis Taxon Range Zone (Aquitanian). In statistical analyses, samples attributed to these biozones form distinct clusters, indicating that each biozone was also characterised by a distinct faunal type.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Géosciences
- Language
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- English
- Classification
- Palaeontology
- License
- License undefined
- Identifiers
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- RERO DOC 288664
- DOI 10.1007/s12549-016-0264-x
- Persistent URL
- https://folia.unifr.ch/unifr/documents/305603
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