更新世南美洲本地有蹄类动物(Notoungulata和Litoptena),瑞士历史上罗斯收藏,来自阿根廷潘潘地区。

IF 3 2区 地球科学 Q1 PALEONTOLOGY
Swiss Journal of Palaeontology Pub Date : 2023-01-01 Epub Date: 2023-10-06 DOI:10.1186/s13358-023-00291-5
Juan D Carrillo, Hans P Püschel
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引用次数: 0

摘要

南美洲早期探险家收集的化石对揭示已灭绝哺乳动物过去的多样性和揭示其进化史至关重要。南美洲早期的一位重要探险家是瑞士-阿根廷古生物学家卡斯帕·雅各布·罗斯,被称为圣地亚哥·罗斯(1850年,Herisau,Switzerland-1924,Buenos Aires,Argentina),他收藏了大量哺乳动物化石,收藏在欧洲和阿根廷的博物馆中。瑞士罗斯的重要藏品包括潘潘地区(阿根廷)标志性的更新世巨型动物群。潘潘地区的古生物学意义取决于其丰富的脊椎动物化石记录,这些记录记录了南美洲南部的多样性动态和古环境变化,是南美洲晚第三纪和第四纪生物地层学规模的基础。南美洲本土有蹄类动物(SANU)是在南美洲辐射的有蹄胎盘哺乳动物。Notoungulata和Litoptena的分支包括非洲大陆SANUs巨型动物群的最后代表。我们首次对瑞士罗斯收藏的潘潘地区的SANUs标本进行了修订和描述。藏品包括两种脊骨类动物(Toxodon cf.T.platensis和Mesotherium cristam)和一种litopter物种(Macrauchenia patachonica)。产状仅限于更新世早期和中期(前卢贾尼阶/时代)。尽管与其他群体(如构炎动物)相比,Roth收藏的SANU的多样性较低,但一些标本非常完整,包括头骨和颅后遗骸。马的完整性。patachonica材料允许更新和重新解释这个标志性物种的齿列和颅后骨骼的一些细节。除了具有历史重要性外,罗斯收藏的SANU标本还为研究南美洲巨型动物群的古生物学和进化以及评估它们在该大陆灭绝的假设提供了重要信息。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Pleistocene South American native ungulates (Notoungulata and Litopterna) of the historical Roth collections in Switzerland, from the Pampean Region of Argentina.

Pleistocene South American native ungulates (Notoungulata and Litopterna) of the historical Roth collections in Switzerland, from the Pampean Region of Argentina.

Pleistocene South American native ungulates (Notoungulata and Litopterna) of the historical Roth collections in Switzerland, from the Pampean Region of Argentina.

Pleistocene South American native ungulates (Notoungulata and Litopterna) of the historical Roth collections in Switzerland, from the Pampean Region of Argentina.

The fossil collections made by early explorers in South America have been fundamental to reveal the past diversity of extinct mammals and unravel their evolutionary history. One important early explorer in South America was the Swiss-Argentine palaeontologist Kaspar Jacob Roth, known as Santiago Roth (1850, Herisau, Switzerland-1924, Buenos Aires, Argentina), who made significant collections of fossil mammals that are housed in museums in Europe and Argentina. The important collections of Roth in Switzerland include iconic Pleistocene megafauna from the Pampean Region (Argentina). The palaeontological significance of the Pampean Region relies on its abundant record of fossil vertebrates that documents diversity dynamics and paleoenvironmental change in southern South America, serving as the basis for the South American biostratigraphical scale of the late Neogene and Quaternary. The South American native ungulates (SANUs) were hoofed placental mammals that radiated in South America. The clades Notoungulata and Litopterna include, among others, the last representatives of SANUs megafauna in the continent. We revise and describe for the first time the SANUs specimens from the Pampean Region of the Roth collections in Switzerland. The collections include two species of notoungulates (Toxodon cf. T. platensis and Mesotherium cristatum) and one litoptern species (Macrauchenia patachonica). The occurrences are restricted to the early and middle Pleistocene (pre-Lujanian Stages/Ages). Although the SANUs diversity in the Roth collections is low in comparison with other groups (e.g., xenarthrans), some of the specimens are very complete, including skulls and postcranial remains. The completeness of the Ma. patachonica material allows an update and reinterpretation of some of the details of the dentition and the postcranial skeleton of this iconic species. In addition to its historical importance, the SANU specimens from the Roth collections provide important information to study the paleobiology and evolution of South American megafauna and evaluate hypotheses about their extinction in the continent.

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来源期刊
Swiss Journal of Palaeontology
Swiss Journal of Palaeontology Earth and Planetary Sciences-Paleontology
CiteScore
4.30
自引率
16.70%
发文量
17
审稿时长
4 weeks
期刊介绍: The Swiss Journal of Palaeontology publishes original research and review articles of interest to the international community in the fields of palaeontology, taxonomy and systematics, while recognising at the same time the importance of documenting high-quality palaeontological data in a regional context. Palaeobiology in combination with alpha taxonomy is a core topic of the journal. Submitted papers should have an appeal as wide as possible, directed towards an international readership. Contributions should not have been simultaneously submitted elsewhere, and the overlap of content between related articles should be minimal. Duplications of text and the use of previously published illustrations without adequate citation are unacceptable. If a manuscript has two or more authors, both or all have to sign to confirm they all were involved in the work and have agreed to its submission. The preferred manuscript language is UK English, but consistently used US English is also acceptable. We encourage the publication of proceedings of international meetings as well as special thematic issues. Short contributions and book reviews are also accepted. An international editorial team as well as guest editors guarantee that the thematic issues as well as all articles in regular issues are peer-reviewed and meet the highest standards.
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