Ledi-Geraru
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Ledi-Geraru yanki ne na bincike na paleoanthropological a cikin gundumar Mille, Yankin Afar, arewa maso gabashin Habasha, tare da kogin Ledi da Geraru (matsayi biyu na hagu na Awash, kudu da kogin Mille). Ya kai kimanin kilomita 50, wanda ke arewa maso gabashin yankin Hadari paleoanthropological.
An gudanar da bincike na farko a cikin 1972-1974 An ƙaddamar da aikin Bincike na Ledi-Geraru a cikin 2002. [1]An san shafin ne saboda kayan aikin dutse na farko, wanda aka rubuta kimanin shekaru miliyan 2.6.[2] An gano wani hominin mandible a cikin 2013, wanda aka sani da LD 350-1 kuma an rubuta shi shekaru miliyan 2.8, wanda zai iya cancanta a matsayin samfurin farko na jinsin Homo.[3]
LD 350-1
[gyara sashe | gyara masomin]LD 350-1 burbushin burbushin hominin mandible ne wanda aka gano a 2013 a shafin Ledi-Geraru. Chalachew Seyoum ne ya samo shi, dalibi ne na Habasha a Cibiyar Nazarin Mutum a Jami'ar Jihar Arizona.An rubuta burbushin ne a cikin shekaru miliyan 2.80 zuwa 2.75.
An bayyana shi a matsayin hada "halayen farko da aka gani a farkon Australopithecus tare da yanayin da aka samo a cikin Homo daga baya.[4]Burbushin shine jikin hagu na hagu, amma bai haɗa da ramus mai hawa ba. Ya haɗa da ƙuƙwalwa uku, duka premolars, da hagu canine, wasu daga cikinsu suna da cikakkun kambi.[4]
Bayanan da aka ambata
[gyara sashe | gyara masomin]- ↑ "Ledi-Geraru Research Project". ASU. Archived from the original on 6 September 2015. Retrieved 5 August 2015.
- ↑ Bruce Bower (June 3, 2019). "Hominids may have been cutting-edge tool makers 2.6 million years ago; Contested finds point to a sharp shift in toolmaking by early members of the Homo genus". ScienceNews.org. Retrieved June 5, 2019.
- ↑ Jeanna Bryner. "Earliest Known Human Fossils Discovered". Livescience.com. Retrieved 5 August 2015.
- ↑ 4.0 4.1 Villmoare, Brian; Kimbel, William H.; Seyoum, Chalachew; Campisano, Christopher J.; DiMaggio, Erin N.; Rowan, John; Braun, David R.; Arrowsmith, J. Ramón; Reed, Kaye E. (2015-03-20). "Early Homo at 2.8 Ma from Ledi-Geraru, Afar, Ethiopia". Science. 347 (6228): 1352–1355. Bibcode:2015Sci...347.1352V. doi:10.1126/science.aaa1343. ISSN 0036-8075. PMID 25739410.. See also: Erin N. DiMaggio EN; Campisano CJ; Rowan J; Dupont-Nivet G; Deino AL; et al. (2015). "Late Pliocene fossiliferous sedimentary record and the environmental context of early Homo from Afar, Ethiopia". Science. 347 (6228): 1355–1359. Bibcode:2015Sci...347.1355D. doi:10.1126/science.aaa1415. PMID 25739409..
- Dimaggio, E. N.; et al. (2015). "Tephrostratigraphy and depositional environment of young (<2.94 Ma) Hadar Formation deposits at Ledi-Geraru, Afar, Ethiopia". Journal of African Earth Sciences. 112: 234–250. doi:10.1016/j.jafrearsci.2015.09.018.