Akrocheiras
Basic information
Sample name: Akrocheiras

Reference: A. Kafetzidou, K. Kouli, G. Zidianakis, D. S. Kostopoulos, and N. Zouros. 2022. The early Miocene angiosperm flora of Akrocheiras in Lesvos Petrified Forest (North Aegean, Greece) - Preliminary results. Review of Palaeobotany and Palynology 296(104559):1-15 [ER 4426]
Geography
Country: Greece

Coordinate: 39.2297° N, 25.9065° E
Latlng basis: estimated from map

Scale: quarry

Time interval: Early Miocene

Zone: Burdigalian

Section: 4426

Max Ma: 18.4

Min Ma: 17.0

Age basis: K-Ar

Geography comments: "from a new outcrop in Akrocheiras area" (coordinate estimated using Fig. 2b)
from the "Sigri Pyroclastic Formation" that is "dated at 18.4 ± 0.5 Ma by K/Ar", and the overlying Polichnitos ignimbrite is "dated around 17.0 Ma" so the authors assign the flora to within this interval and therefore to the Burdigalian

•
Environment
Lithology: ash

Habitat comments: "an almost 10 m high pyroclastic succession of lapilli and lithic tuff blocks of finegrained breccia and sandstone, interrupted by thin layers of mudstone and paleosol, indicating the occurrence of leaf litter" and the leaf imprints are from "within volcanic tuffs"

Methods
Life forms: leaves

Sampling methods: quarry

Sample size: 158 specimens

Museum: Natural History Museum of the Lesvos Petrified Forest

Net or trap nights: 0

Basal area status: not applicable

Sampling comments: "collected during the systematic excavation that was conducted from April to August in 2019 by the Natural History Museum (NHM) of the Lesvos Petrified Forest"

Metadata
Sample no: 4713

Contributor no: John Alroy

Enterer: John Alroy

Created: 2025-11-23 09:37:29

Modified: 2025-11-23 09:37:29

Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
16 species
5 singletons
total count 158
geometric series index: 29.8
Fisher's α: 4.447
geometric series k: 0.7725
Hurlbert's PIE: 0.8079
Shannon's H: 1.9878
Good's u: 0.9685
Register
Daphnogene polymorha 48
Laurophyllum sp. 1 9
Laurophyllum sp. 2 3
Smilax weberi 1
Phoenicites sp. 31
Celtis japeti 5
Fagaceae indet.11
Platycarya sp. 1
cf.
Carya sp. 3
Alnus sp. 1
cf.
Ilex miodipyrena 2
Ilex sp. 1
cf.
Populus cf. balsamoides 1
Pungiphyllum cruciatum 35
Apocynophyllum sp. 4
Dicotylophyllum sp. 2