Academic Journal
Oligocene stratigraphy across the Eocene and Miocene boundaries in the Valley of Lakes (Mongolia)
| العنوان: | Oligocene stratigraphy across the Eocene and Miocene boundaries in the Valley of Lakes (Mongolia) |
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| المؤلفون: | Daxner-Höck, Gudrun, Badamgarav, Demchig, Barsbold, Rinchen, Erbajeva, Margarita, Bettina Göhlich, Ursula, Harzhauser, M., Höck, E., Höck, Volger, Ichinnorov, Niiden, Khand, Yondon, López-Guerrero, Paloma, Maridet, O., Neubauer, Thomas.A., Oliver Pérez, Adriana, Piller, W. E., Tsogtbaatar, Khishigjav, Ziegler, R. |
| المساهمون: | Austrian Science Fund, Austrian Academy of Sciences |
| بيانات النشر: | Springer |
| سنة النشر: | 2017 |
| المجموعة: | Digital.CSIC (Consejo Superior de Investigaciones Científicas / Spanish National Research Council) |
| مصطلحات موضوعية: | Oligocene, Mammals, Stratigraphy, Correlation, Mongolia, Miocene |
| الوصف: | Cenozoic sediments of the Taatsiin Gol and TaatsiinTsagaan Nuur area are rich in fossils that provide unique evidence of mammal evolution in Mongolia. The strata are intercalated with basalt flows. 40Ar/39Ar data of the basalts frame the time of sediment deposition and mammal evolution and enable a composite age chronology for the studied area. We investigated 20 geological sections and 6 fossil localities of Oligocene and early Miocene deposits from this region. Seventy fossil beds yielded more than 19,000 mammal fossils. This huge collection encompasses 175 mammal species: 50% Rodentia, 13% Eulipotyphla and Didelphomorphia, and 12% Lagomorpha. The remaining 25% of species are distributed among herbivorous and carnivorous large mammals. The representation of lower vertebrates and gastropods is comparatively poor. Several hundred SEM images illustrate the diversity of Marsupialia, Eulipotyphla, and Rodentia dentition and give insight into small mammal evolution in Mongolia during the Oligocene and early Miocene. This dataset, the radiometric ages of basalt I (∼31.5 Ma) and basalt II (∼27 Ma), and the magnetostratigraphic data provide ages of mammal assemblages and time ranges of the Mongolian biozones: letter zone A ranges from ∼33 to ∼31.5 Ma, letter zone B from ∼31.5 to ∼28 Ma, letter zone C from ∼28 to 25.6 Ma, letter zone C1 from 25.6 to 24 Ma, letter zone C1-D from 24 to ∼23 Ma, and letter zone D from ∼23 to ∼21 Ma. ; Open access funding provided by Austrian Science Fund (FWF). This research was supported by four projects of the Austrian Science Fund (FWF): P-10505-GEO, P-15724-N06, P-23061-N19 to G.D.-H. and a Lise Meitner grant M-1357-B17 to O.M. Travel expenses of G.D.-H. to China and Mogolia were partly covered by the Austrian Academy of Sciences. ; Peer Reviewed |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| تدمد: | 1867-1594 1867-1608 28450965 |
| Relation: | https://doi.org/10.1007/s12549-016-0257-9; Sí; Palaeobiodiversity and Palaeoenvironments 97(1): 111-218 (2017); http://hdl.handle.net/10261/195982; http://dx.doi.org/10.13039/501100002428; http://dx.doi.org/10.13039/501100001822 |
| DOI: | 10.1007/s12549-016-0257-9 |
| DOI: | 10.13039/501100002428 |
| DOI: | 10.13039/501100001822 |
| الاتاحة: | http://hdl.handle.net/10261/195982 https://doi.org/10.1007/s12549-016-0257-9 https://doi.org/10.13039/501100002428 https://doi.org/10.13039/501100001822 |
| Rights: | none |
| رقم الانضمام: | edsbas.BEC2D93 |
| قاعدة البيانات: | BASE |
| تدمد: | 18671594 18671608 28450965 |
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| DOI: | 10.1007/s12549-016-0257-9 |