Ngalau Gupin-A
Basic information
Sample name: Ngalau Gupin-A
Sample aka: NG-A
Reference: H. E. Smith, G. J. Price, M. Duval, K. Westaway, J. Zaim, Y. Rizal, . Aswan, M. R. Puspaningrum, A. Trihascaryo, M. Stewart, and J. Louys. 2021. Taxonomy, taphonomy and chronology of the Pleistocene faunal assemblage at Ngalau Gupin cave, Sumatra. Quaternary International 603:40-63 [ER 3851]
Geography
Country: Indonesia
State: West Sumatra
Coordinate: -0.64475° S, 100.647049° E
Coordinate basis: stated in text
Time interval: Middle Pleistocene
Max Ma: 0.16
Min Ma: 0.115
Age basis: ESR
Geography comments: "approximately 90 km east of Sawah Lunto City"
there are five ESR dates, but sample "SUM18-21a most likely provides the most reliable chronological constraint" which based on a detailed discussion "lies somewhere between ~160 ka and ~115 ka" and is therefore Middle Pleistocene
there are five ESR dates, but sample "SUM18-21a most likely provides the most reliable chronological constraint" which based on a detailed discussion "lies somewhere between ~160 ka and ~115 ka" and is therefore Middle Pleistocene
Environment
Lithology: breccia
Taphonomic context: carnivore accumulation,cave,rodent accumulation
Habitat comments: the cave was formed in "Carboniferous-Permian limestones"
"well-preserved Pleistocene fossiliferous breccia and sediments" and specifically "a dense, lightly cemented mosaic deposit of angular clasts from pebble to cobble size within a clay-rich matrix"
"There are no cut marks or intentional bone breakage, marks or modification, so we cannot relate the bone assemblage to human activities or bone collecting behaviours"
"numerous small carnivores" and Hystrix are "definitive" accumulation agents
"well-preserved Pleistocene fossiliferous breccia and sediments" and specifically "a dense, lightly cemented mosaic deposit of angular clasts from pebble to cobble size within a clay-rich matrix"
"There are no cut marks or intentional bone breakage, marks or modification, so we cannot relate the bone assemblage to human activities or bone collecting behaviours"
"numerous small carnivores" and Hystrix are "definitive" accumulation agents
Methods
Life forms: bats,carnivores,primates,rodents,ungulates
Sampling methods: quarry,screenwash,surface
Sample size: 82 specimens
Sampling comments: fossils were "removed from this breccia by hand and pick" and "sediment was sieved through a 5 mm mesh "
Metadata
Sample number: 4216
Contributor: John Alroy
Enterer: John Alroy
Created: 2023-04-10 09:24:28
Modified: 2023-04-09 23:24:28
Abundance distribution
16 species
6 singletons
total count 82
geometric series index: 32.0
Fisher's α: 5.935
geometric series k: 0.8387
Hurlbert's PIE: 0.8811
Shannon's H: 2.3576
Good's u: 0.9271
Each square represents a species. Square sizes are proportional to counts.
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Register
| Sus scrofa | 12 | 54 kg herbivore |
| also 23 indeterminate Sus | ||
| Sus barbatus | 13 | |
| Hexaprotodon sp. | 1 | |
| also 6 indeterminate Hippopotamidae | ||
| Tragulidae indet. | 1 | |
| Muntiacus sp. | 1 | |
| plus 4 indeterminate Cervidae | ||
| Bovidae indet. | 4 | |
| Pongo sp. | 13 | |
| Macaca sp. | 3 | |
| Nasalis sp. | 1 | |
| Rhinocerotidae indet. | 6 | |
| Tapirus indicus | 4 | |
| Helarctos sp. | 2 | |
| Panthera tigris | 1 | 168 kg carnivore |
| Chiroptera indet. | 5 | |
| "Microchiroptera" | ||
| Hystrix sp. | 14 | |
| Elephas sp. | 1 | |