Biology:Hippotragus gigas
| Hippotragus gigas Temporal range: Late Pliocene - Early Pleistocene
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Artiodactyla |
| Family: | Bovidae |
| Subfamily: | Hippotraginae |
| Genus: | Hippotragus |
| Species: | †H. gigas
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| Binomial name | |
| †Hippotragus gigas Leakey, 1965[1]
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Hippotragus gigas is an extinct species of antelope known from the Plio-Pleistocene of Africa.
Taxonomy
Hippotragus gigas was discovered by Louis Leakey in 1965, who described it as "a Hippotragus of gigantic proportions".[2] Fossils were first found in Bed II of the Olduvai Gorge in eastern Africa, and have also been found at sites in Algeria and South Africa .[3]
Description
Based on molar size, this species was slightly larger than its living relatives and would have weighed around 300 kg (660 lb).[4] In addition to larger size, the molars can be distinguished by their rounded cusps, large basal pillars, rounded ribs and the large goat folds on lower molars. Its horn cores were also less mediolaterally compressed than its relatives.[5] H. gigas also had a reduced premolar row compared to living Hippotragus species. This is a derived trait for the genus, which suggests that the living species are not descended from H. gigas.[4]
References
- ↑ "Hippotragus gigas". http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=374858.
- ↑ Brain, C.K. (1983). The Hunters Or the Hunted? An Introduction to African Cave Taphonomy. University of Chicago Press. p. 172.
- ↑ O'Regan, H.J. (2005). "Large mammal turnover in Africa and the Levant between 1.0 and 0.5 Ma". Geological Society, London, Special Publications 247 (1): 231–249. doi:10.1144/GSL.SP.2005.247.01.13.
- ↑ 4.0 4.1 Faysal, B. (2018). "Paleoecology of the Serengeti during the Oldowan-Acheulean transition at Olduvai Gorge, Tanzania: The mammal and fish evidence". Journal of Human Evolution 120: 48–75. doi:10.1016/j.jhevol.2017.10.009.
- ↑ Bubenik, Anthony B. (2012). Horns, Pronghorns, and Antlers: Evolution, Morphology, Physiology, and Social Significance. Springer New York. p. 213. ISBN 9781461389668.
Wikidata ☰ Q108402788 entry
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