期刊
HISTORICAL BIOLOGY
卷 -, 期 -, 页码 -出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/08912963.2023.2284421
关键词
Cyonasua group; early Huayquerian; Late Miocene; La Pampa; Buenos Aires
This study presents a detailed taxonomic analysis of fossil specimens belonging to Procyonidae from Cerro Azul Formation in Argentina. A new species, Cyonasua zettii sp. nov., was proposed based on specimens from La Pampa Province. Additionally, six specimens were assigned to Cyonasua longirostris and four specimens remained assigned to Cyonasua sp. due to their fragmented nature. These specimens represent some of the oldest known records of the Order Carnivora (Mammalia) in South America.
A detailed taxonomic study of all known fossil specimens assigned to Procyonidae from sediments of Cerro Azul Formation (early Huayquerian Stage/Age, Late Miocene) outcroping at La Pampa and Buenos Aires provinces (Argentina) is presented here. Our study led us to propose a new species, Cyonasua zettii sp. nov. coming from La Pampa Province. In addition another six specimens studied, coming from La Pampa and Buenos Aires provinces, are assigned to Cyonasua longirostris and four specimens are assigned to Cyonasua sp. because its fragmentary nature prevents a determination at species level. The specimens described here are among the oldest records for the Order Carnivora (Mammalia) in South America.
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