Lapsarna
Basic information
Sample name: Lapsarna
Sample aka: LRN
Reference: K. Vasileiadou and N. Zouros. 2012. Early Miocene micromammals from the Lesvos Petrified Forest (Greece): preliminary results. Palaeobiodiversity and Palaeoenvironments 92:249-264 [ER 3932]
Geography
Country: Greece
State: Lesvos
Coordinate: 39.257° N, 25.931° E
Coordinate basis: stated in text
Time interval: Early Miocene
Max Ma: 19
Min Ma: 18
Age basis: K-Ar
Geography comments: LRN is situated south west of the village of Lapsarna on a "rural earth-road"
The youngest age limit of the site based on K-Ar dating of an overlying volcanic layer is 18.4 +/- 0.5 Ma
A probable range of 19-18 Ma is given
There is conflict in assigning the site to a biozone as it has been attributed to somewhere between MN3 and MN4 based on both faunal composition and radiometric dating
"The fauna collected up to now is not complete enough to be correlated with certainty with a biozone"
The youngest age limit of the site based on K-Ar dating of an overlying volcanic layer is 18.4 +/- 0.5 Ma
A probable range of 19-18 Ma is given
There is conflict in assigning the site to a biozone as it has been attributed to somewhere between MN3 and MN4 based on both faunal composition and radiometric dating
"The fauna collected up to now is not complete enough to be correlated with certainty with a biozone"
Environment
Lithology: claystone
Taphonomic context: lake deposit
Habitat comments: "20-cm-thick layer of black-brown clay, very rich in organic material"
Sediments and the presence of lacustrine gastropods, fish, and reptiles indicate the presence of a large lake
Sediments and the presence of lacustrine gastropods, fish, and reptiles indicate the presence of a large lake
Methods
Life forms: bats,rodents,other small mammals
Sampling methods: screenwash
Sample size: 25 specimens
Sampling comments: Screenwashed through sieves mesh sized 0.5 mm
~150kg of sediment was processed at the time of publication
~150kg of sediment was processed at the time of publication
Metadata
Sample number: 4335
Contributor: Jack Nesbitt
Enterer: Jack Nesbitt
Created: 2023-07-21 14:20:26
Modified: 2023-07-21 04:20:26
Abundance distribution
7 species
1 singleton
total count 25
geometric series index: 12.3
Fisher's α: 3.228
geometric series k: 0.6813
Hurlbert's PIE: 0.7617
Shannon's H: 1.7015
Good's u: 0.9657
Each square represents a species. Square sizes are proportional to counts.
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Register
| Chiroptera indet. | 3 | |
| Erinaceidae indet. | 1 | |
| Talpidae indet. | 2 | |
| Soricidae indet. | 2 | |
| Eumyarion sp. | 10 | |
| "Eumyarion aff. latior/weinfurteri" | ||
| Democricetodon sp. | 3 | |
| Glirulus (Glirulus) cf. diremptus | 4 | |