The fossil record of sabre-tooth characins (Teleostei: Characiformes: Cynodontinae), their phylogenetic relationships and palaeobiogeographical implications
The fossil record of sabre-tooth characins (Teleostei: Characiformes: Cynodontinae), their phylogenetic relationships and palaeobiogeographical implications
复制标题
剑齿鲨化石记录(Teleostei:Characiformes:Cynodontinae),它们的系统发育关系和古生物地理学意义
DOI:
10.1080/14772019.2022.2070717
复制
发表时间:
2022
影响因子:
2.6
通讯作者:
Ballen G
中科院分区:
文献类型:
--
作者:
Ballen G
The family Cynodontidae is composed of freshwater fishes inhabiting drainages east of the Andes in South America. Its fossil record is mostly represented by isolated teeth that are difficult to identify. Here we describe fossil cranial remains of the extant speciesHydrolycus scomberoidesas well as isolated teeth that were identified asHydrolycusand cf.Rhaphiodonin sediments of the late Pliocene Ware Formation in the Guajira Peninsula, west of the Andes. Novel, phylogenetically informative characters were found including the number of symphysial teeth, the plane of insertion of the leading teeth onto the dentary, the presence of accessory posterior dentigerous patches, and depressions and outline of the dentary. We performed a phylogenetic analysis combining morphological and molecular characters including both extant and extinct specimens, producing a well-resolved topology that recovers a novel sister-group relationship between the generaHydrolycusandCynodon, while the genusRhaphiodonfalls to the base of this clade. This contradicts earlier studies recoveringHydrolycusandRhaphiodonas sister taxa. The phylogenetic position ofHydrolycus wallaceiwas found to be unstable. The occurrence ofH. scomberoidesin the late Pliocene of Guajira is a puzzle that could be explained by different mechanisms, including a persistent drainage connection across the Andes during the late Pliocene, and/or the result of severe drying and subsequent extinction.
登录
查看更多内容
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
P. Antoine;R. Salas‐Gismondi;P. Baby;M. Benammi;S. Brusset;D. Franceschi;N. Espurt;Cyrielle Goillot;F. Pujos;Julia V. Tejada;M. Urbina
通讯作者:
M. Urbina
DOI:
--
发表时间:
2018
期刊:
Smithsonian Contributions to Paleobiology
影响因子:
--
作者:
J. D. Carrillo;E. Amson;C. Jaramillo;R. Sánchez;Luis I. Quiroz;C. Cuartas;Aldo F. Rincón;M. Sánchez
通讯作者:
M. Sánchez
影响因子:
3.6
作者:
A. Lemopoulos;Raphaël Covain
通讯作者:
Raphaël Covain
DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
N. Pérez;M. Parra;C. Jaramillo;D. Silvestro;S. Echeverri;C. Montes;J. Jaramillo;J. Escobar
通讯作者:
J. Escobar
影响因子:
2.8
作者:
M. Toledo
通讯作者:
M. Toledo