Revisiting the southernmost occurrence of Brasilichnium elusivum Leonardi, 1981 with comments on the tetrapod track record of eolian environments

IF 0.7 4区地球科学 Q4 PALEONTOLOGY Revista Brasileira De Paleontologia Pub Date : 2022-12-31 DOI:10.4072/rbp.2022.4.01

H. Francischini, Gabriel S. Sipp, André Barcelos-Silveira, C. Schultz, P. Dentzien‐Dias

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引用次数: 1

Abstract

Mammalian lineage is deep rooted in Mesozoic, with several taxa and ichnotaxa described worldwide. One of the most prolific mammaliaform ichnospecies is Brasilichnium elusivum, which is extremely abundant in the Lower Cretaceous Botucatu Formation of the Brazilian Paraná Basin, as well as in other Mesozoic ichnofaunas of North America and Africa. In this contribution, we revisited the proposed southernmost occurrence of B. elusivum using both classical and photogrammetric (3D digitization) approaches. The flagstone containing the studied material was found ex situ, in a sidewalk at Santa Cruz do Sul Municipality (the Rio Grande do Sul State, Brazil), and the results of the performed analysis showed that the tracks cannot be assigned to any ichnotaxon. Lastly, some significant issues related to ichnological research of ex situ track-bearing flagstones and large eolian deposits are discussed. Keywords: Early Cretaceous, Botucatu Formation, mesozoic mammals, South America, vertebrate ichnology.

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1981年重访最南端的巴西螺(Brasilichnium elusivum Leonardi)，并对风成环境中四足动物的足迹记录进行评论

哺乳动物谱系深深植根于中生代，在世界范围内有几个分类群和ichnotaxa。最多产的哺乳动物型遗迹物种之一是巴西埃卢西武姆遗迹，它在巴西巴拉那盆地的下白垩纪博图卡图组以及北美和非洲的其他中生代遗迹动物中极其丰富。在这篇文章中，我们使用经典和摄影测量（3D数字化）方法重新研究了B.elusivum最南端的分布。含有所研究材料的石板是在南圣克鲁斯市（巴西南里奥格兰德州）的人行道上原位发现的，所进行的分析结果表明，这些轨道不能被分配给任何ichnotaxon。最后，讨论了一些与非原位轨道承载石板和大型风成矿床的考古研究有关的重要问题。关键词：早白垩世，博图卡图组，中生代哺乳动物，南美洲，脊椎动物遗迹学。

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来源期刊

Revista Brasileira De Paleontologia PALEONTOLOGY-

CiteScore

1.60

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： It publishes original contributions on all aspects of Paleontology. Papers are written in English, Spanish, or Portuguese and are reviewed by international experts.