A small cichlid species flock from the Upper Miocene (9–10 MYA) of Central Kenya
A small cichlid species flock from the Upper Miocene (9–10 MYA) of Central Kenya
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DOI：
10.1007/s10750-020-04358-z
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发表时间：
2020-08
期刊：
影响因子：
2.6
通讯作者：
M. Altner;B. Reichenbacher
中科院分区：
文献类型：
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作者：
M. Altner;B. Reichenbacher
来自东非的慈鲷化石为了解非洲大陆慈鲷科的进化历史和古代多样性提供了独特的见解。在这里，我们展示了已灭绝的 haplotilapiine cichlid †Baringochromisgen 的三个化石物种。十一月基于对总共 78 个有关节的骨骼的分析，发现于肯尼亚中部瓦里尔古湖的中新世上部。 †Baringochromis senutaesp。十一月，†B。索尼公司十一月和 †B.tallamaesp。十一月表面上相似，但在口齿列以及与头部、背鳍基部和身体深度相关的形态特征方面彼此不同。这些发现表明它们代表了一个古老的小物种群。讨论了瓦里尔古湖及其物种群的可能现代类似物。 †Baringochromism 的三个物种可能已经开始通过营养分化来细分它们的初始栖息地。可能的食物来源可能是植物残骸和昆虫，因为它们的化石残骸与发现†Baringochromis的地点相同。
Fossil cichlids from East Africa offer unique insights into the evolutionary history and ancient diversity of the family on the African continent. Here we present three fossil species of the extinct haplotilapiine cichlid †Baringochromisgen. nov. from the upper Miocene of the palaeolake Waril in Central Kenya, based on the analysis of a total of 78 articulated skeletons. †Baringochromis senutaesp. nov., †B. sonyiisp. nov. and †B.tallamaesp. nov. are superficially similar, but differ from each other in oral-tooth dentition and morphometric characters related to the head, dorsal fin base and body depth. These findings indicate that they represent an ancient small species flock. Possible modern analogues of palaeolake Waril and its species flock are discussed. The three species of †Baringochromismay have begun to subdivide their initial habitat by trophic differentiation. Possible sources of food could have been plant remains and insects, as their fossilized remains are known from the same place where †Baringochromiswas found.