Aktau I
Basic information
Sample name: Aktau I

Reference: E. G. Kordikova and H. de Bruijn. 2001. Early Miocene Rodents from the Aktau Mountains (South-Eastern Kazakhstan). Senckenbergiana lethaea 81(2):391-405 [ER 2391]
Geography
Country: Kazakhstan

Coordinate: 44° 59' N, 79° 13' E
Latlng basis: stated in text

Formation: Chul'adyr

Time interval: Middle Miocene

Zone: MN4

Ma: 17.0

Geography comments: "in the Middle Member" of the formation, "about five metres above the horizon that has yielded a diverse assemblage of larger mammals"
the rodents "possibly represent the MN4" (i.e., roughly 17 Ma)

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Environment
Substrate: ground surface

Lithology: claystone

Habitat comments: "a lens of blue-green clay"

Methods
Life forms: rodents

Sampling methods: screenwash

Sample size: 160 specimens

Net or trap nights: 0

Basal area status: not applicable

Sampling comments: "The isolated rodent cheek teeth... were collected by wet screening in bags of plastic mesh. The fragment of lower jaw of a beaver (pi. 3 figs 7a and 7b) is a surface find from the same level, but at some distance from the main locality - in Aktau III" (all the rest of the material is from Aktau I)
additional taxa are not discussed

Metadata
Sample no: 2585

Contributor no: John Alroy

Enterer: John Alroy

Created: 2017-02-17 21:09:07

Modified: 2017-02-17 10:09:07

Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
5 species
0 singleton
total count 160
geometric series index: 6.4
Fisher's α: 0.98
geometric series k: 0.4121
Hurlbert's PIE: 0.4902
Shannon's H: 0.876
Good's u: 1
Register
Aktaumys dzhungaricus 104
new
Karydomys dzerzhinskii 46
new
Tachyoryctoidinae indet.3
Sinosminthus sp. 2
questionably referred
†Sayimys aff. obliquidens 5