GD 1
Basic information
Sample name: GD 1
Sample aka: Gondolin
Reference: J. W. Adams, A. I. R. Herries, K. L. Kuykendall, and G. C. Conroy. 2007. Taphonomy of a South African cave: geological and hydrological influences on the GD 1 fossil assemblage at Gondolin, a Plio-Pleistocene paleocave system in the Northwest Province, South Africa. Quaternary Science Reviews 26:2526-2543 [ER 3864]
Geography
Country: South Africa
State: North West
Coordinate: 25° 49' 37" S, 27° 50' 49" E
Coordinate basis: based on nearby landmark
Time interval: Early Pleistocene
Ma: 1.778
Age basis: paleomag
Geography comments: the exact coordinate is given by Wikipedia
the local section spans a normal-to-reversed polarity reversal that is "tentatively" assigned to "the very end of the Olduvai normal polarity period (1.95–1.78 Ma)" based on biochronology
the end of the Olduvai is at 1.778 Ma according to Sier et al. (2017, Quaternary Geochronology)
the local section spans a normal-to-reversed polarity reversal that is "tentatively" assigned to "the very end of the Olduvai normal polarity period (1.95–1.78 Ma)" based on biochronology
the end of the Olduvai is at 1.778 Ma according to Sier et al. (2017, Quaternary Geochronology)
Environment
Lithology: siltstone
Taphonomic context: carnivore accumulation,cave,fluvial deposit,rodent accumulation
Habitat comments: "excavation centered on a naturally formed central channel" within a paleocave
the channel includes "a series of inter-stratified speleothem, in-washed sediments, and talus deposits" that are "homogeneous" and include extensively "reworked" fossils coming from a layer consisting "mainly of laminated, but sloping, siltstones underlain and overlain by flowstone deposits"
169 specimens were modified by carnivores, seven by small rodents, and 10 by porcupines, and although these taxa "did not directly occupy" the site and the fossils are transported they were responsible for the initial accumulation near the cave
there is no discussion of human artefacts
the channel includes "a series of inter-stratified speleothem, in-washed sediments, and talus deposits" that are "homogeneous" and include extensively "reworked" fossils coming from a layer consisting "mainly of laminated, but sloping, siltstones underlain and overlain by flowstone deposits"
169 specimens were modified by carnivores, seven by small rodents, and 10 by porcupines, and although these taxa "did not directly occupy" the site and the fossils are transported they were responsible for the initial accumulation near the cave
there is no discussion of human artefacts
Methods
Life forms: ungulates,other small mammals
Sampling methods: quarry
Sample size: 66 specimens
Years: 2003
Sampling comments: "excavated during a four week field season in 2003"
carnivores and rodents are not present
carnivores and rodents are not present
Metadata
Sample number: 4239
Contributor: John Alroy
Enterer: John Alroy
Created: 2023-04-21 10:01:45
Modified: 2023-04-21 00:01:45
Abundance distribution
9 species
4 singletons
total count 66
geometric series index: 18.8
Fisher's α: 2.816
geometric series k: 0.6459
Hurlbert's PIE: 0.6890
Shannon's H: 1.5377
Good's u: 0.9394
Each square represents a species. Square sizes are proportional to counts.
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Register
| Alcelaphini indet. medium | 33 | |
| Alcelaphini indet. large | 5 | |
| Antidorcas cf. recki | 4 | |
| Bovidae indet. | 1 | |
| Hippotragini or Reduncini, not the same as the other bovids | ||
| Oreotragus oreotragus | 1 | browser-grazer |
| Redunca sp. | 10 | |
| Tragelaphini indet. | 1 | |
| Equus sp. | 10 | |
| plus nine indeterminate equids | ||
| Lagomorpha indet. | 1 | |