Reviewing the body size of some extinct Brazilian Quaternary Xenarthrans

IF 1.9 3区 地球科学 Q3 GEOGRAPHY, PHYSICAL
FERNANDO H. DE S. Barbosa, Laís Alves-Silva, Alexandre Liparini, Kleberson De Oliveira Porpino
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引用次数: 0

Abstract

Here we estimate the body mass of 10 iconic species of extinct xenarthrans (cingulates and sloths) from the Quaternary of Brazil using two sets of predictive equations based on postcranial variables. Our results revealed that one of these methods is more reliable in estimating the body mass of the evaluated taxa, even though both methods provide accurate results. The body mass estimates for cingulates indicate that they would have been heavier than previously proposed. Among extinct sloths, the results appear to be within the range of previous estimates. Compared to previously proposed body mass estimates for the same species, we suggest that the results presented in this study are more robust due to using predictive equations with high predictive power and developed using a broader phylogenetic dataset, including extant relatives.

一些已灭绝的巴西第四纪异构线虫的体型
在这里,我们使用两组基于颅后变量的预测方程,估计了巴西第四纪10种已灭绝的标志性异种动物(扣带动物和树懒)的体重。我们的研究结果表明,尽管两种方法都提供了准确的结果,但其中一种方法在估计被评估类群的体重方面更可靠。对扣带鱼的体重估计表明,它们可能比之前提出的要重。在灭绝的树懒中,结果似乎在之前的估计范围内。与之前提出的同一物种的体重估计相比,我们认为,由于使用了具有高预测能力的预测方程,并且使用了更广泛的系统发育数据集(包括现有亲缘关系),因此本研究的结果更加稳健。
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来源期刊
Journal of Quaternary Science
Journal of Quaternary Science 地学-地球科学综合
CiteScore
4.70
自引率
8.70%
发文量
82
审稿时长
6-12 weeks
期刊介绍: The Journal of Quaternary Science publishes original papers on any field of Quaternary research, and aims to promote a wider appreciation and deeper understanding of the earth''s history during the last 2.58 million years. Papers from a wide range of disciplines appear in JQS including, for example, Archaeology, Botany, Climatology, Geochemistry, Geochronology, Geology, Geomorphology, Geophysics, Glaciology, Limnology, Oceanography, Palaeoceanography, Palaeoclimatology, Palaeoecology, Palaeontology, Soil Science and Zoology. The journal particularly welcomes papers reporting the results of interdisciplinary or multidisciplinary research which are of wide international interest to Quaternary scientists. Short communications and correspondence relating to views and information contained in JQS may also be considered for publication.
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