Rebekkachromis nov. gen. from the middle–upper Miocene (11 MYA) of Central Kenya: the oldest record of a haplotilapiine cichlid fish
Rebekkachromis nov. gen. from the middle–upper Miocene (11 MYA) of Central Kenya: the oldest record of a haplotilapiine cichlid fish
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来自肯尼亚中部中上新世 (11 MYA) 的 Rebekkachromis nov gen:最古老的 Haplotilapiine 丽鱼科鱼类记录
DOI:
10.1007/s10750-018-3715-8
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发表时间:
--
期刊:
影响因子:
2.6
通讯作者:
Reichenbacher
中科院分区:
文献类型:
--
作者:
Kevrekidis;Altner;Reichenbacher
The fossil record of cichlids is sparse, and every new discovery can provide new insights into the evolutionary history of this speciose freshwater fish family. In this article, we describe †Rebekkachromisgen. nov. from the middle-to-late Miocene (c. 11 MYA) of the Central Kenya Rift within the East African Rift system. †Rebekkachromisis represented by two species that differ from all other fossil and extant African cichlids, exceptEtia, in possessing the unique character combination of two supraneural bones and a set of robust tricuspid oral teeth in the outer row of the dentition. Furthermore, †Rebekkachromisexhibits the only proposed morphological synapomorphy of the Haplotilapiini, namely the presence of tricuspid teeth in the inner row of the oral dentition. We show that †Rebekkachromisconstitutes the oldest reliably identified fossil record of a haplotilapiine. The evolution of cichlid fishes possessing tricuspid teeth in the rivers and lakes of the Central Kenya Rift during the middle-to-late Miocene could have been facilitated by volcanic activity, as repeated ash falls may well have fostered the growth of algae and in particular diatoms. These fishes could thus have had a major advantage, because they could exploit the newly available, rich food resources.
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影响因子:
1.2
作者:
Tetsumi Takahashi
通讯作者:
Tetsumi Takahashi
DOI:
10.1016/j.palaeo.2009.01.005
发表时间:
2009
期刊:
Palaeogeography, Palaeoclimatology, Palaeoecology
影响因子:
--
作者:
O. Otero;A. Pinton;H. Mackaye;A. Likius;P. Vignaud;M. Brunet
通讯作者:
M. Brunet
影响因子:
3.7
作者:
O. Otero;A. Pinton;H. Cappetta;S. Adnet;Xavier Valentin;M. Salem;J. Jaeger
通讯作者:
J. Jaeger
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
A. Murray
通讯作者:
A. Murray
影响因子:
3.6
作者:
Sparks, JS;Smith, WL
通讯作者:
Smith, WL