Baikadam
Basic information
Sample name: Baikadam
Sample aka: Podpusk 2
Reference: M. Ivanov, D. Vasilyan, M. Böhme, and V. S. Zazhigin. 2019. Miocene snakes from northeastern Kazakhstan: new data on the evolution of snake assemblages in Siberia. Historical Biology 31(10):1284-1303 [ER 4047]
Geography
Country: Kazakhstan
State: Pavlodar
Coordinate: 51.38° N, 77.99° E
Coordinate basis: stated in text
Formation: Kalkaman Svita
Time interval: Middle Miocene
Zone: MN7/8
Geography comments: "The Baikadam (Podpusk 2) locality is situated 8.4 km north of the village of Podpusk on the right bank of the Irtysh River"
Environment
Lithology: siliciclastic (mixed)
Taphonomic context: fluvial deposit
Habitat comments: obtained from Vasilyan, et al. (2017) which was referenced and contained information on the lithography of the site.
Methods
Life forms: snakes
Sampling methods: screenwash
Sample size: 252 specimens
Sampling comments: "The fossil material of snakes of the Malyi Kalkaman 1 and 2 localities comes from excavations from 1980, 1987 and 2001, and of the Baikadam locality from 1989 and 2001. All the material of small vertebrates was obtained by screen-washing"
Metadata
Sample number: 4463
Contributor: John Alroy
Enterer: Nicholas Vine
Modifier no: Nicholas Vine
Created: 2024-11-14 08:40:11
Modified: 2024-11-14 09:13:19
Abundance distribution
10 species
2 singletons
total count 252
geometric series index: 14.2
Fisher's α: 2.081
geometric series k: 0.5674
Hurlbert's PIE: 0.5523
Shannon's H: 1.2906
Good's u: 0.9921
Each square represents a species. Square sizes are proportional to counts.
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Register
| †Albaneryx cf. volynicus | 3 | |
| Boinae gen. et sp. indet. | 1 | |
| †Coluber cf. hungaricus | 8 | |
| †Texasophis bohemiacus | 22 | |
| Elaphe aff. dione | 20 | |
| Colubrinae indet. A | 1 | |
| ‘Colubrinae’ | ||
| Colubrinae B | 4 | |
| ‘Colubrinae' | ||
| Colubridae indet. | 164 | |
| Vipera sp. | 11 | |
| ‘Vipera aspis’ complex | ||
| Gloydius sp. | 18 | |
| Gloydius halys complex | ||