Bos acutifrons

Source: Wikipedia, the free encyclopedia.

Bos acutifrons
Temporal range: Middle Pleistocene
Bos acutifrons skull
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Family: Bovidae
Subfamily: Bovinae
Genus: Bos
Species:
†B. acutifrons
Binomial name
†Bos acutifrons
Lydekker, 1878
Synonyms

Bos planifrons

Bos acutifrons is the most ancient representative of the

Siwalik Hills of Kashmir, in either modern Pakistan or India, in the 19th century. The prehistoric species was described, along with Bos planifrons, by Richard Lydekker in 1878. In 1898 Lydekker synonymised B. planifrons with B. acutifrons, reconsidering the skull found to be that of a female individual of the same species.[1]

morphological and chronological grounds.[1][5][6] Conversely, the presence of B. primigenius remains in the Levant which pre-date the earliest remains of both B. buiaensis and B. namadicus, as presented by Ofer Bar-Yosef and Miriam Belmaker in 2011, cast doubt upon this 'out-of-Africa' theory as well as the theory that aurochs developed from B. namadicus.[5]

The species B. acutifrons first appeared in the early Pleistocene, some 2.58 million years ago at the earliest, and died out around 1 million years ago. Duvernois in 1990 proposed it evolved directly from an Indian species of

P. turkanensis described from northern Kenya. Both Pelorovis species were moved to genus Bos by Martínez-Navarro et al. in 2014, which would make the oldest Bos species African.[6]

Tong et al. in 2018 also call the Martínez-Navarro hypothesis into question, pointing out that there are good morphological ground to separate the genus Pelorovis from Bos, which would invalidate the theory.[1][7]

References

  1. ^
    doi:10.19615/j.cnki.1000-3118.170722
    . Retrieved 4 January 2020.
  2. ISBN 906754678X
    . rapport 186. Retrieved 4 January 2020.
  3. ^ van Vuure, Cis (2005). Retracing the Aurochs: History, Morphology and Ecology of an extinct wild ox. Sofia: Pensoft Publishing.
  4. S2CID 55104027
    .
  5. ^
    S2CID 51748319
    . Retrieved 4 January 2020.
  6. ^
    doi:10.1016/j.quascirev.2014.02.016
    . Retrieved 3 January 2020.
  7. ISSN 0924-0101
    . Retrieved 4 January 2020.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Bos_acutifrons&oldid=1212143876"