Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", Laboratorio de Anatomía Comparada y Evolución de los Vertebrados, Av. Ángel Gallardo, 470, C1405DJR, Buenos Aires, Argentina.
Universidad Maimónides, Fundación de Historia Natural "Félix de Azara", Departamento de Ciencias Naturales y Antropología, Hidalgo 775 piso 7, C1405BDB, Buenos Aires, Argentina.
An Acad Bras Cienc. 2021 Dec 3;93(suppl 2):e20191438. doi: 10.1590/0001-3765202120191438. eCollection 2021.
The fossil record of freshwater fishes and anurans from the Miocene in Patagonia is relatively patchy, a large number of specimens remaining undescribed. The aim of the present contribution is to describe a fossil association of percomorphacean fishes and calyptocephalellid anurans from the early to late Miocene Collón Curá Formation, at Chubut province, Patagonia, Argentina. In spite of being represented by several specimens, both anurans and fishes show a very low taxonomic diversity. This pattern matches with other fossil sites from the Cenozoic of Patagonia, as well as with the extant Patagonian batrachofaunas and ichthyofaunas. The fossil record of frogs and fishes in Patagonia is represented by few lineages that have a large evolutionary history in the area, and occasionally can be traced up to the Late Mesozoic.
巴塔哥尼亚中新世淡水鱼类和无尾目两栖类的化石记录相对零散，大量标本仍未被描述。本研究的目的是描述阿根廷丘布特省中新世早期至晚期科洛恩库里亚组的一个包含鲈形目鱼类和盔口蟾科无尾两栖类的化石组合。尽管有几个标本，但两栖类和鱼类的分类多样性非常低。这种模式与巴塔哥尼亚新生代的其他化石地点以及现生的巴塔哥尼亚两栖动物区系和鱼类区系相匹配。巴塔哥尼亚的蛙类和鱼类化石记录由少数几个在该地区具有悠久进化历史的谱系代表，偶尔可以追溯到晚中生代。
