Analysis of very small-small theropod footprints data from Imilchil tracksite (Hig Central Atlas. Morocco). A concordance model for a global scale

IF 2.2 4区 地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY Journal of African Earth Sciences Pub Date : 2024-08-22 DOI:10.1016/j.jafrearsci.2024.105389
Judit Minguez Ceniceros , Moussa Masrour , Mohamed Boutakiout , José Ignacio Extremiana , Félix Pérez-Lorente
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Abstract

In the ensemble of theropod footprints from the Imilchil macrosite, a group of small size separated from the rest is distinguished. We had detected this grouping in other sites studied by our team in La Rioja and in the work of drawing up scatter plots and frequency histograms of the measurements, on a global scale, of the length and width of the theropod footprints (these data are available on request from Farlow [[email protected]]). We analyze the particular grouping of small footprints, providing the study of the theropod footprint measurements of 14 new sites with dinosaur footprints in Imilchil and the graphical representation (frequency histograms and scatter plots) of the global data. The work has been done by projecting and comparing the length and width measurements of the Imilchil footprints and the global ones of what we call circumscribed geographical environments (TGC or Temporal Geographical Circumscriptions [cf. Mínguez Ceniceros et al., 2022]). The ichnotaxonomic study of the footprints referred to in this work can be found in Masrour et al., (2023). Finally we interpret the position of maxima and minima in the frequency diagrams, both of Imilchil, and of the other areas in which Farlow has found records (up to the year 2022).

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分析来自伊米尔基尔足迹点(摩洛哥希格中央阿特拉斯)的超小型兽脚印数据。全球尺度的一致性模型
在伊米尔希尔大遗址的兽脚印群中,有一个体型较小的兽脚印群与其他兽脚印群截然不同。我们在拉里奥哈团队研究的其他遗址中,以及在绘制全球范围内兽脚印长度和宽度的散点图和频率直方图的工作中(这些数据可向 Farlow [[email protected]] 索取),都发现了这种分组现象。我们对小脚印的特殊分组进行了分析,提供了对伊米尔基尔 14 个新的恐龙脚印地点的兽脚印测量数据的研究,以及全球数据的图形表示(频率直方图和散点图)。这项工作是通过预测和比较伊米尔奇尔恐龙足迹的长度和宽度测量值以及我们称之为限定地理环境(TGC 或 Temporal Geographical Circumcriptions [参见 Mínguez Ceniceros 等人,2022 年])的全球足迹测量值来完成的。本研究中提到的脚印的图谱分类学研究可参见 Masrour 等人(2023 年)。最后,我们对伊米尔基尔以及 Farlow 发现记录的其他地区(截至 2022 年)的频率图中最大值和最小值的位置进行了解释。
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来源期刊
Journal of African Earth Sciences
Journal of African Earth Sciences 地学-地球科学综合
CiteScore
4.70
自引率
4.30%
发文量
240
审稿时长
12 months
期刊介绍: The Journal of African Earth Sciences sees itself as the prime geological journal for all aspects of the Earth Sciences about the African plate. Papers dealing with peripheral areas are welcome if they demonstrate a tight link with Africa. The Journal publishes high quality, peer-reviewed scientific papers. It is devoted primarily to research papers but short communications relating to new developments of broad interest, reviews and book reviews will also be considered. Papers must have international appeal and should present work of more regional than local significance and dealing with well identified and justified scientific questions. Specialised technical papers, analytical or exploration reports must be avoided. Papers on applied geology should preferably be linked to such core disciplines and must be addressed to a more general geoscientific audience.
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