Mass prediction in theropod dinosaurs.
Mass prediction in theropod dinosaurs.
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DOI：
10.1080/08912960412331284313
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发表时间：
2004-06-01
影响因子：
1.4
通讯作者：
Farina, R.A.
中科院分区：
文献类型：
--
作者：
Christiansen, P.;Farina, R.A.
身体大小是生物体生命史的一个重要参数。因此，化石物种的质量估计对于许多分析都是重要的。人们曾多次尝试得出适用于恐龙的方程式。在本文中，我们提供了双和多元方程的基础上，从一个样本的16兽脚类恐龙，这是已知的合理完整的骨骼遗骸，并跨越了很宽的尺寸范围内的日志转换appericular骨骼数据。所包括的类群的身体质量已被发现的比例模型的位移方法，根据直接对安装的骨骼进行测量。7个二元回归分析的相关系数等于或大于0.975，股骨长度是最佳可用测量值（r=0.995;估计值的标准误差（%SEE）=19.26;预测误差百分比（%PE）=13.81）。此外，32个多变量分析得到的方程具有高相关系数（r>0.990）和低标准误。
Body size is a crucial life history parameter for an organism. Therefore, mass estimation for fossil species is important for many kinds of analyses. Several attempts have been made to yield equations applicable to dinosaurs. In this paper, we offer bi- and multivariate equations based on log transformed appendicular skeleton data from a sample of 16 theropods which were known from reasonably complete skeletal remains, and spanning a wide size range. Body masses of the included taxa had been found by displacement methods of scale models, based on measurements taken directly on the mounted skeletons. Seven of the bivariate regression analyses resulted in correlation coefficients equal to or above 0.975 and femoral length was the best available measurement (r=0.995; standard error of the estimate (%SEE)=19.26; percent prediction error (%PE)=13.81). Also, 32 multivariate analyses yielded equations with high correlation coefficients (r>0.990) and low standard errors.