Diceros praecox is an extinct species of rhinoceros that lived in Africa during the Pliocene, around 4 million years ago.[1] It has been suggested to be the direct ancestor of the living black rhinoceros (Diceros bicornis).[2]
| Diceros praecox Temporal range: Pliocene
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Perissodactyla |
| Family: | Rhinocerotidae |
| Genus: | Diceros |
| Species: | †D. praecox
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| Binomial name | |
| †Diceros praecox Hooijer & Patterson, 1972
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| Synonyms | |
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Ceratotherium praecox | |
Taxonomy edit
Diceros praecox has for many years been classified as Ceratotherium praecox, however the original material describing the species has been shown to be closer to the black rhinoceros in its skull morphology. Other material showing greater similarities with the white rhinoceros are considered to belong to a different species, Ceratotherium mauritanicum.[3] D. praecox has been suggested to have arose from Ceratotherium neumayri,[2] however the close relationship between C. neumayri and Diceros has been disputed by other authors.[4]
Description edit
The teeth of D. praecox are similar to those of Ceratotherium neumayri. However, the longer skull suggests increased browsing specialization. The break-off of Diceros from Ceratotherium probably indicates ecological divergence and character displacement between browsing versus grazing specializations.[2]
References edit
- ^ Kingdon, Jonathan (2013). Mammals of Africa: Volumes I-VI. Bloomsbury Publishing. p. 455. ISBN 9781408189962.
- ^ a b c Geraads, Denis (2005). "Pliocene Rhinocerotidae (Mammalia) from Hadar and Dikka (Lower Awash, Ethiopia), and a revision of the origin of modern African rhinos" (PDF). Journal of Vertebrate Paleontology. 25 (2): 451–461. doi:10.1671/0272-4634(2005)025[0451:PRMFHA]2.0.CO;2. JSTOR 4524458.
- ^ Werdelin, Lars; Sanders, William Joseph (2010). Cenozoic Mammals of Africa. University of California Press. p. 679. ISBN 9780520257214.
- ^ Giaourtsakis, Ioannis X. (2022), Vlachos, Evangelos (ed.), "The Fossil Record of Rhinocerotids (Mammalia: Perissodactyla: Rhinocerotidae) in Greece", Fossil Vertebrates of Greece Vol. 2, Cham: Springer International Publishing, pp. 409–500, doi:10.1007/978-3-030-68442-6_14, ISBN 978-3-030-68441-9, retrieved 2023-11-20
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