Nuevo registro de Puma concolor Linnaeus, 1771 (Carnivora, Felidae) para el Pleistoceno tardío de Uruguay y su importancia paleoecológica

IF 0.9 4区地球科学 Q3 GEOLOGY

Andean Geology Pub Date : 2022-06-07 DOI:10.5027/andgeov49n3-3478

Aldo Manzuetti, W. Jones, M. Ubilla, Daniel Perea

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引用次数: 2

Abstract

Felidae entered South America from North America during the Ensenadan Stage/Age (Early to Middle Pleistocene). For Uruguay their fossil record is scarce but informative, although mostly correspond to large felids (Smilodon, Panthera onca). In this work describes fossil remain of a skull and a mandible assigned, based on morphology and statistical analysis, to Puma concolor. These materials were unearthed from Late Pleistocene sediments (Sopas Formation) from northern Uruguay. Based on these remains some paleobiological and paleoecological aspects are discussed. This specimen had a body mass of about 45 kg, with the potential capacity to hunt animals over 200 kg, which is in agreement with previous reports for other fossil puma remains. During Late Pleistocene, in the current territory of Uruguay, Puma concolor would have shared ecological niche with other large carnivore such as sabre-tooth cats (Smilodon populator, S. fatalis), the jaguar Panthera onca, the canid Protocyon troglodytes, and short-faced bears Arctotherium, feeding upon medium-sized animals in diverse environment.

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乌拉圭晚更新世美洲狮新纪录，1771年（食肉动物，猫科）及其古生态意义

Felidae在Ensenadan阶段/时代（更新世早期至中期）从北美洲进入南美洲。对乌拉圭来说，它们的化石记录很少，但信息丰富，尽管大多与大型猫科动物（Smilodon、Panthera onca）相对应。在这项工作中，描述了一个头骨和一个下颌骨的化石残骸，根据形态学和统计分析，被分配给美洲狮。这些物质是从乌拉圭北部的晚更新世沉积物（Sopas组）中出土的。在此基础上，讨论了一些古生物学和古生态学方面的问题。这个标本的体重约为45公斤，有可能捕食200公斤以上的动物，这与之前关于其他美洲狮化石遗骸的报道一致。在更新世晚期，在乌拉圭目前的领土上，美洲狮与其他大型食肉动物共享生态位，如剑齿猫（Smilodon populator，S.fatalis）、美洲豹Panthera onca、犬科动物Protocyon troglodytes和短脸熊Arctotherium，在不同的环境中以中型动物为食。

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来源期刊

Andean Geology 地学-地质学

CiteScore

3.90

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： This journal publishes original and review articles on geology and related sciences, in Spanish or English, in three issues a year (January, May and September). Articles or notes on major topics of broad interest in Earth Sciences dealing with the geology of South and Central America and Antarctica, and particularly of the Andes, are welcomed. The journal is interested in publishing thematic sets of papers and accepts articles dealing with systematic Paleontology only if their main focus is the chronostratigraphical, paleoecological and/or paleogeographical importance of the taxa described therein.