LATE PLIOCENE BOVIDAE FROM LEDI-GERARU (LOWER AWASH VALLEY, ETHIOPIA) AND THEIR IMPLICATIONS FOR AFAR PALEOECOLOGY
LATE PLIOCENE BOVIDAE FROM LEDI-GERARU (LOWER AWASH VALLEY, ETHIOPIA) AND THEIR IMPLICATIONS FOR AFAR PALEOECOLOGY
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DOI：
10.1080/02724634.2017.1337639
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发表时间：
2017-01-01
影响因子：
1.4
通讯作者：
Reed, Kaye
中科院分区：
文献类型：
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作者：
Bibi, Faysal;Rowan, John;Reed, Kaye
上新世晚期Ledi-Geraru遗址描述了牛化石，主要来自Gurumaha和Lee adoyta沉积包(2.8-2.6 Ma)。这些发现包括在稍古老的哈达尔组中已知的分类群，如野牛Ugandax coryndonae、类似于Bongo的Traelphus Rastafari-nakuae谱系、一种类似于Parmularius pachyceras的alcelphin，以及一只大型黑斑羚。与Hadar的不同之处包括：Kobus sigmoidaris的丰度，没有K.oricornus，以及存在Traelphus gaudryi和可能还有Menelikia lyrocera。Ledi-Geraru的牛化石与图尔卡纳盆地同时代组合中已知的牛主要相似。Menelikia和T.Gaudryi是图尔卡纳盆地的特征，这可能是他们在阿法尔地区的第一次记录。该属一新种也被命名。Ogoyta沉积物中保存完好的角马化石头骨和骨架(
Fossil bovids are described from the late Pliocene site of Ledi-Geraru, mainly from the Gurumaha and Lee Adoyta sedimentary packages (2.8-2.6 Ma). Finds include taxa already known from the slightly older Hadar Formation, such as the buffalo Ugandax coryndonae, the bongo-like Tragelaphus rastafari-nakuae lineage, an alcelaphin resembling Parmularius pachyceras, and a large impala. Differences from Hadar include the abundance of Kobus sigmoidalis, the absence of K. oricornus, and the presence of Tragelaphus gaudryi and probably also Menelikia lyrocera. The fossil bovids from Ledi-Geraru are mainly comparable to those known from contemporaneous assemblages in the Turkana Basin. Menelikia and T. gaudryi are characteristic of the Turkana Basin, and these are probably their first records from the Afar. A new species of Beatragus is also named. A well-preserved skull and skeleton of a fossil wildebeest from the Ogoyta sediments (