South Longyadong Cave (Horizon T5-4)
Basic information
Sample name: South Longyadong Cave (Horizon T5-4)
Reference: Y.-X. Li, S.-M. Hu, S.-H. Wang, and Y.-X. Zhang. 2016. New materials of micromammal fossils from Longyadong Cave in Luonan Basin, Shaanxi, central China. Vertebrata PalAsiatica 54(4):332-350 [ER 4066]
Geography
Country: China
State: Shaanxi
Coordinate: 34° 7' 39" N, 110° 9' 51" E
Coordinate basis: stated in text
Scale: quarry
Time interval: Middle Pleistocene
Max Ma: 0.3566
Min Ma: 0.2739
Age basis: thermoluminescence
Geography comments: "in the Luonan Basin, eastern Qinling Mountains of Shaanxi Province" and specifically in Huashilang
the coordinate is given by Zhang et al. (2023, Journal of Human Evolution)
the fossils are from horizon T5-4 in the section, meaning horizon 4
most of the material is from exploration square 5
thermoluminescence dates for this horizon are 356.6±17.8 ka and 273.9±13.7 ka
the former is from the middle of horizon 4 and the latter is from the upper part of horizon 4
the coordinate is given by Zhang et al. (2023, Journal of Human Evolution)
the fossils are from horizon T5-4 in the section, meaning horizon 4
most of the material is from exploration square 5
thermoluminescence dates for this horizon are 356.6±17.8 ka and 273.9±13.7 ka
the former is from the middle of horizon 4 and the latter is from the upper part of horizon 4
Environment
Lithology: not described
Taphonomic context: cave
Archaeology: stone tools
Habitat comments: the lithology and palaeonvironment are not described
stone artifacts were found in layers 2, 3, and 4
stone artifacts were found in layers 2, 3, and 4
Methods
Life forms: rodents,other small mammals
Sampling methods: quarry
Sample size: 33 individuals
Years: 1995 - 1997
Sampling comments: the specimens were unearthed in a systematic excavation by the Shaanxi Provincial Institute of Archaeology from 1995 to 1997
earlier excavations in the 1980s and 1990s yielded Homo erectus molars, stone tools, and additional mammal fossils
three other horizons in the section yielded one species each
earlier excavations in the 1980s and 1990s yielded Homo erectus molars, stone tools, and additional mammal fossils
three other horizons in the section yielded one species each
Metadata
Sample number: 4486
Contributor: John Alroy
Enterer: John Alroy
Created: 2024-11-17 01:02:46
Modified: 2024-11-17 01:02:46
Abundance distribution
12 species
6 singletons
total count 33
geometric series index: 34.6
Fisher's α: 6.784
geometric series k: 0.8041
Hurlbert's PIE: 0.8267
Shannon's H: 2.1091
Good's u: 0.8219
Each square represents a species. Square sizes are proportional to counts.
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