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Supplemental Information

Overview of the amphibian, reptile and small mammal faunas from the Western Siberian localities studied in this work (in red) and according to published data (in pink)

Asteriks indicate the localities according to the literature data, the material of which was partially studied in this work. The species of small mammal linages are indicated in similar colours. For details on published data see Suppl. 2 and 3. Abbreviatsions: akz – Akzhar, tr – Turme, zs – Zaisan, klm – Kalkaman, ish – Ishim, pv – Pavlodar, sb – Sarybulak, klp –Kalmalpai, kb – Karabulak Svita, kd – Kedey, nst – Novaya Stanitsa, rt – Rytov, is – Isakov, psh – Peshnev, krt – Krutogor, bt – Betekey, liv – Levetin, sel – Seletin, irt – Irtish, kar – Karagash, kc – Kochkov.

DOI: 10.7287/peerj.preprints.2365v1/supp-1

Ages, biochronologic, magneto- and lithostratigraphic data of the studied localities from Western Siberia

The numbering of the localities correspond to the locality numeration in the Figs. 1 and 2 and S1 and S4.

DOI: 10.7287/peerj.preprints.2365v1/supp-2

List of localities with amphibian and reptiles faunas according to the literature data, accompanied with other vertebrate groups

We provide also available assignments to stratigraphic horizones, ages, svitas, basins and literature sources. The locality numbering corresponds to the locality numeration given in the Figs. 1 and 2, as well as in the Suppl. 1.

DOI: 10.7287/peerj.preprints.2365v1/supp-3

Precipitation reconstructions

Western Siberian localities, their ages, estimated palaeoprecipitation values, present-day precipitation near the localities and their reference climate station, precipitation difference to present day values, relative precipitation to present-day values, and faunal content.

DOI: 10.7287/peerj.preprints.2365v1/supp-4

Fossil records of the studied groups

European fossil occurences of Hynobiidae, Proteidae, Chelotriton, Tyltotriton, Bombina, Palaeobatrachidae, Pelobatidae, Hyla, Bufo bufo gr., Bufotes viridis gr., Rana, Pelophylax according to Böhme & Ilg (2003) .

DOI: 10.7287/peerj.preprints.2365v1/supp-5

Additional Information

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Davit Vasilyan conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Vladimir Zazhigin contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Madelaine Böhme conceived and designed the experiments, analyzed the data, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Data Deposition

The following information was supplied regarding data availability:

The research in this article did not generate, collect or analyse any raw data or code.


The work was supported by DFG (BO1550/14-1) to MB and SYNTHESYS (ES-TAF-2516) to DV grants. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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