Haasgat Dumpsite
Basic information
Sample name: Haasgat Dumpsite
Sample aka: HGD
Reference: J. W. Adams. 2012. A revised listing of fossil mammals from the Haasgat cave system ex situ deposits (HGD), South Africa. Palaeontologia Electronica 15(3):1-88 [ER 3872]
Geography
Country: South Africa
State: Gauteng
Coordinate: 25° 51' 31" S, 27° 50' 9" E
Coordinate basis: stated in text
Time interval: Early Pleistocene
Max Ma: 2.3
Min Ma: 2
Age basis: other
Geography comments: Herries et al. (2014) give a maximum age of 2.3 Ma based on the first appearance of Equus and a minimum age of the base of the Olduvai Sub-Chron (now 2.00 Ma according to Wikipedia) based on magnetic polarity stratigraphy
Environment
Lithology: breccia
Taphonomic context: cave
Habitat comments: a "cave system" with "calcified sediments" that include the fossils
Herries et al. (2014) state that the "ex-site breccia" provided "the HGD assemblage"
accumulation agents are not discussed and there is no evidence of human presence
Herries et al. (2014) state that the "ex-site breccia" provided "the HGD assemblage"
accumulation agents are not discussed and there is no evidence of human presence
Methods
Life forms: carnivores,primates,rodents,ungulates,other large mammals,other small mammals
Sampling methods: quarry
Sample size: 437 specimens
Sampling comments: the fossils come from "a massive ex situ dumpsite"
some previously published specimens could not be located by the author in the collection
some previously published specimens could not be located by the author in the collection
Metadata
Sample number: 4249
Contributor: John Alroy
Enterer: John Alroy
Created: 2023-04-23 12:48:18
Modified: 2023-04-23 02:48:18
Abundance distribution
22 species
5 singletons
total count 437
extrapolated richness: 34.4
Fisher's α: 4.883
geometric series k: 0.7858
Hurlbert's PIE: 0.8033
Shannon's H: 2.0858
Good's u: 0.9886
Each square represents a species. Square sizes are proportional to counts.
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| Cercopithecoides haasgati | 22 | |
| Cercopithecoides williamsi | 4 | |
| including one tentatively referred specimen: plus three indeterminate Cercopithecoides specimens | ||
| Papio angusticeps | 88 | |
| plus 21 indeterminate Papio | ||
| Connochaetes gnou | 7 | grazer |
| Damaliscus pygargus | 1 | 83 kg grazer-browser |
| "Damaliscus dorcas" | ||
| Megalotragus sp. | 1 | |
| Antidorcas bondi | 1 | |
| Antidorcas sp. | 4 | |
| australis or marsupialis: plus five indeterminate Antidorcas | ||
| Hippotragus sp. | 5 | |
| Oreotragus sp. | 158 | |
| Reduncini indet. | 9 | |
| Taurotragus sp. | 5 | |
| Tragelaphus sp. | 5 | |
| Phacochoerini indet. | 2 | |
| Dinofelis sp. | 1 | |
| compared to | ||
| Hyaenide indet. | 1 | |
| Equus capensis | 19 | |
| Equus cf. quagga | 3 | 279 kg grazer |
| plus 51 indeterminate Equus | ||
| Procavia antiqua | 17 | |
| Procavia transvaalensis | 44 | |
| plus six indeterminate Procavia | ||
| Pronolagus rupestris | 2 | |
| Hystrix africaeaustralis | 38 | 15 kg browser |