Kavakdere
Basic information
Sample name: Kavakdere
Reference: E. Unay-Bayraktar. 1989. Rodents from the Middle Oligocene of Turkish Thrace. Utrecht Micropaleontological Bulletins, Special Publication 5:1-119 [ER 2386]
Geography
Country: Turkey
Coordinate: 38.18° N, 26.90° E
Coordinate basis: based on nearby landmark
Formation: Lignite-Sandstone
Time interval: Early Oligocene
Zone: MP25
Geography comments: "in the west bank of the Kavak valley just south of the small barrage" (coordinate based on Kavakdere Dam)
"about three metres above a kaolinitisÂed volcanic tuff... dated 33.0 ± 3 My" by fission track dating of apatite (date is wildly inconsistent with the mammal biochronology); "late Early Oligocene" and presumably MP25 based on the age of Kocayarma
the entire formation was "deposited during some one to two million years"
"about three metres above a kaolinitisÂed volcanic tuff... dated 33.0 ± 3 My" by fission track dating of apatite (date is wildly inconsistent with the mammal biochronology); "late Early Oligocene" and presumably MP25 based on the age of Kocayarma
the entire formation was "deposited during some one to two million years"
Environment
Substrate: ground surface
Lithology: claystone
Habitat comments: "40 em thick brownish sandy-clay bed, rich in gastropods"
Methods
Life forms: rodents
Sample size: 242 specimens
Sampling comments: "The mesh of the finest sieve used is 0.5 mm...The approximate weight of the matrix washed" was "1900 kg"
"The insectivores which occur associated with the rodents will not be dealt with in this paper"
"The insectivores which occur associated with the rodents will not be dealt with in this paper"
Metadata
Sample number: 2567
Contributor: John Alroy
Enterer: John Alroy
Created: 2017-02-17 14:17:11
Modified: 2023-09-08 11:59:29
Abundance distribution
13 species
4 singletons
total count 242
extrapolated richness: 22.2
Fisher's α: 2.939
geometric series k: 0.7018
Hurlbert's PIE: 0.7924
Shannon's H: 1.8226
Good's u: 0.9835
Each square represents a species. Square sizes are proportional to counts.
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