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22 results on '"Erbajeva, M. A."'

14. Oligocene and early Miocene mammal biostratigraphy of the Valley of Lakes in Mongolia

Author

Harzhauser, M., Daxner-Höck, Gudrun, Erbajeva, M. A., López-Guerrero, Paloma, Maridet, O., Oliver Pérez, Adriana, Piller, W. E., Göhlich, Ursula.B., Ziegler, R., Harzhauser, M., Daxner-Höck, Gudrun, Erbajeva, M. A., López-Guerrero, Paloma, Maridet, O., Oliver Pérez, Adriana, Piller, W. E., Göhlich, Ursula.B., and Ziegler, R.

Abstract

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.

Published
2017

18. Stepwise onset of the Icehouse world and its impact on Oligo-Miocene Central Asian mammals

Author

Austrian Science Fund, Harzhauser, M., Daxner-Höck, Gudrun, López-Guerrero, Paloma, Maridet, O., Oliver Pérez, Adriana, Piller, W. E., Richoz, Sylvain, Erbajeva, M. A., Neubauer, Thomas.A., Göhlich, Ursula.B., Austrian Science Fund, Harzhauser, M., Daxner-Höck, Gudrun, López-Guerrero, Paloma, Maridet, O., Oliver Pérez, Adriana, Piller, W. E., Richoz, Sylvain, Erbajeva, M. A., Neubauer, Thomas.A., and Göhlich, Ursula.B.

Abstract

Central Asia is a key area to study the impact of Cenozoic climate cooling on continental ecosystems. One of the best places to search for rather continuous paleontological records is the Valley of Lakes in Mongolia with its outstandingly fossil-rich Oligocene and Miocene terrestrial sediments. Here, we investigate the response by mammal communities during the early stage of Earth's icehouse climate in Central Asia. Based on statistical analyses of occurrence and abundance data of 18608 specimens representing 175 mammal species and geochemical (carbon isotopes) and geophysical (magnetic susceptibility) data we link shifts in diversities with major climatic variations. Our data document for the first time that the post-Eocene aridification of Central Asia happened in several steps, was interrupted by short episodes of increased precipitation, and was not a gradual process. We show that the timing of the major turnovers in Oligocene mammal communities is tightly linked with global climate events rather than slow tectonics processes. The most severe decline of up 48% of total diversity is related to aridification during the maximum of the Late Oligocene Warming at 25 Ma. Its magnitude was distinctly larger than the community turnover linked to the mid-Oligocene Glacial Maximum.

Published
2016

20. Synthèses et tablaux de corrélations

Author

AGUILAR J. P., AGUSTI J., ALEXEEVA N., ANTOINE P. O., ANTUNES M. T., ARCHER M., ARGENTI P., AUBRY M. P., AZANZA B., BARBERA BOTA X., BENAMMI M., BENDUKIDZE O., BERNOR R., BESSEDJK M., BLONDEL C., BOEUF O., BOLLIGER T., DE BONIS L., BRUGAL J. P., DE BRUIJN H., BRUNET M., CABRERA PEREZ L., CAPPETTA H., CASANOVAS CLADELLAS L., CLAUZON G., COMTE B., CREGUT E., CROCHET J. Y., CUESTA M. A., DAAMS R., DAXNER HÖCK G., DENYS C., DUCROCQ S., DUPRAT M., DURANTHON F., ENGESSER B., ERBAJEVA M., ESCARGUEL G., FAHLBUSCH V., FEIST M., FEJFAR O., FLYNN L., FORTELIUS M., FREUDENTHAL M., GARCIA G., GHEERBRANT E., GODINOT M., GODTHELP H., HAND S., HARTENBERGER J. L., HEISSIG K., HEIZMANN E., HELLMUND M., HUGUENEY M., JAEGER J. J., KALIN D., KALTHOFF D., KEMPF O., KORDIKOVA E., KOUFOS G., KOWALSKI K., KUZNETSOVA T., LAUDET F., LAVOCAT R., LEGENDRE S., LLENAS M., LOPEZ MARTINEZ N., VAN DER MADE J., MAHBOUBI M., MARANDAT B., MARTIN SUAREZ E., MARTINEZ J. N., MATTER A., MEIN P., VAN DER MEULEN A., MICHAUX J., MÖDDEN C., MONTUIRE S., MÖRS T., MOURER CHAUVIRE C., PELAEZ CAMPOMANES P., RADULESCU C., REMY J. A., REY J., RÖSSNER G., RUSSELL D. E., RZEBIK KOWALSKA B., SANTAFE J., SCHMIDT KITTLER N., SEN S., SENEGAS F., SIGE B., SMITH T., SPASSOV N., SUDRE J., SYLVESTROU I., TERZEA E., THALER L., TORRE D., VIANEY LIAUD M., VISLOBOKOVA I., WELCOMME J. L., WERDELIN L., WESSELS W., WOLSAN M., KOTSAKIS, Anastassios, Aguilar, J. P., Agusti, J., Alexeeva, N., Antoine, P. O., Antunes, M. T., Archer, M., Argenti, P., Aubry, M. P., Azanza, B., BARBERA BOTA, X., Benammi, M., Bendukidze, O., Bernor, R., Bessedjk, M., Blondel, C., Boeuf, O., Bolliger, T., DE BONIS, L., Brugal, J. P., DE BRUIJN, H., Brunet, M., CABRERA PEREZ, L., Cappetta, H., CASANOVAS CLADELLAS, L., Clauzon, G., Comte, B., Cregut, E., Crochet, J. Y., Cuesta, M. A., Daams, R., DAXNER HÖCK, G., Denys, C., Ducrocq, S., Duprat, M., Duranthon, F., Engesser, B., Erbajeva, M., Escarguel, G., Fahlbusch, V., Feist, M., Fejfar, O., Flynn, L., Fortelius, M., Freudenthal, M., Garcia, G., Gheerbrant, E., Godinot, M., Godthelp, H., Hand, S., Hartenberger, J. L., Heissig, K., Heizmann, E., Hellmund, M., Hugueney, M., Jaeger, J. J., Kalin, D., Kalthoff, D., Kempf, O., Kordikova, E., Kotsakis, Anastassio, Koufos, G., Kowalski, K., Kuznetsova, T., Laudet, F., Lavocat, R., Legendre, S., Llenas, M., LOPEZ MARTINEZ, N., VAN DER MADE, J., Mahboubi, M., Marandat, B., MARTIN SUAREZ, E., Martinez, J. N., Matter, A., Mein, P., VAN DER MEULEN, A., Michaux, J., Mödden, C., Montuire, S., Mörs, T., MOURER CHAUVIRE, C., PELAEZ CAMPOMANES, P., Radulescu, C., Remy, J. A., Rey, J., Rössner, G., Russell, D. E., RZEBIK KOWALSKA, B., Santafe, J., SCHMIDT KITTLER, N., Sen, S., Senegas, F., Sige, B., Smith, T., Spassov, N., Sudre, J., Sylvestrou, I., Terzea, E., Thaler, L., Torre, D., VIANEY LIAUD, M., Vislobokova, I., Welcomme, J. L., Werdelin, L., Wessels, W., and Wolsan, M.

Published
1997

22. Pliocene-Recent Holarctic marmots: overview

Author

Erbajeva, M. A. and Alexeeva, N. V.

Abstract

Marmots are one of the ancient group of mammals. Originated at the end of Miocene in the New World the genus Marmota survives to the Recent time. During its long history a number of migration events can be recorded on the base of paleontological data. The first invasion occurred at the Late Miocene and the next in the Pliocene when marmots widely distributed across Eurasia. From that time Eurasia probably became a new diversification centre of marmots though in North America continued to be a region for marmot speciation. New marmot invasions from North America occurred as well during the Pleistocene. The list of extant and extinct marmots is given.

Published
2009
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