Comments on additional dinosaur specimens from the Janner site (Upper Triassic of the Paraná Basin), southern Brazil

IF 0.7 4区 地球科学 Q4 PALEONTOLOGY
R. Müller
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引用次数: 2

Abstract

The Janner site (Upper Triassic of Southern Brazil) has been intensely explored, yielding constant new findings in recent years. Among these some fragmentary dinosaur specimens still not published were sampled. In this contribution, we describe these specimens, which represent five individuals, in order to increase our understanding on the anatomy of the dinosaurs that compose the paleofauna of the Janner site. The specimen CAPPA/UFSM 0270 is comprised of a series of six articulated presacral vertebrae, plus two isolated vertebrae associated with a right femur. UFRGS-PV-1232-T comprises a sacrum and a left ilium. CAPPA/UFSM 0271 comprises a right humerus that lacks the middle portion of the diaphysis. CAPPA/UFSM 00272 and 2073 are both comprised of an isolated femur each. The fragmentary condition of the materials hampers any less inclusive assignation. However, the morphology of the elements resembles those of coeval dinosaurs. Furthermore, the new specimens increase our knowledge on the morphology of some structures poorly understood from the dinosaurs of Janner site, such as the hindlimb and axial skeleton. Keywords: Hyperodapedon Assemblage Zone, Carnian, Saurischia, Sauropodomorpha, Archosauria, Dinosauria. O sitio Janner (Triassico Superior do Sul do Brasil) tem sido explorado intensamente, produzindo constantes novos achados nos ultimos anos. Dentre estes, restos de dinossauros ainda nao publicados foram recuperados. Nesta contribuicao nos descrevemos estes especimes, que totalizam cinco individuos, com o objetivo de aumentar o entendimento sobre a anatomia e amostragem de dinossauros que compoem o conteudo paleofaunistico do sitio Janner. O especime CAPPA/UFSM 0270 e composto por uma serie de seis vertebras pre-sacrais articuladas, alem de duas vertebras isoladas e um femur direito. UFRGS-PV-1232-T corresponde a um sacro e um ilio esquerdo. CAPPA/UFSM 0271 compreende um umero direito que carece de sua diafise. CAPPA/UFSM 0272 e 0273 compreendem um femur isolado cada. A condicao fragmentaria dos especimes impede uma atribuicao taxonomica menos inclusiva. Porem, a morfologia dos elementos lembra a de dinossauros coevos. Alem disso, os novos especimes aumentam nosso conhecimento sobre a morfologia de estruturas ainda pouco conhecidas de dinossauros do sitio Janner, como o membro anterior e o esqueleto axial. Palavras-chave: Zona de Associacao de Hyperodapedon, Carniano, Saurischia, Sauropodomorpha, Archosauria, Dinosauria.
对巴西南部詹纳遗址(巴拉那盆地上三叠世)其他恐龙标本的评论
詹纳遗址(巴西南部的上三叠世)近年来得到了深入的探索,不断有新的发现。在这些标本中,一些尚未公布的零碎恐龙标本被取样。在这篇文章中,我们描述了这些代表五个个体的标本,以增加我们对构成詹纳遗址古动物群的恐龙解剖结构的理解。CAPPA/UFSM 0270标本由一系列六节骶前关节椎骨和两节与右股骨相关的独立椎骨组成。UFRGS-PV-1232-T包括骶骨和左髂骨。CAPPA/UFSM 0271包括缺少骨干中间部分的右肱骨。CAPPA/UFSM 00272和2073均由单独的雌性组成。材料的零碎状况阻碍了包括作业在内的任何工作。然而,这些元素的形态让人想起了同时代恐龙的形态。此外,这些新标本增加了我们对詹纳遗址恐龙的一些结构形态的了解,比如后肢和轴向骨骼。关键词:Hyperodapedon Assembly Zone,Carnian,Saurischia,Sauropodomorpha,Archosauria,Dinosauria。Janner遗址(巴西南部上三叠纪)近年来进行了深入的勘探,不断有新的发现。其中,尚未发表的恐龙遗骸已被找到。在这篇文章中,我们描述了这些标本,共有五个个体,以增加对构成詹纳遗址古动物区系内容的恐龙解剖和采样的了解。标本CAPPA/UFSM 0270由一系列六节骶前关节椎骨、两节独立椎骨和一根右股骨组成。UFRGS-PV-1232-T对应于骶骨和左髂骨。CAPPA/UFSM 0271包含一个缺少骨干的正确数字。CAPPA/UFSM 0272和0273各自包括分离的股骨。标本的碎片状态阻止了一个不太包容的分类分配。然而,这些元素的形态与同卵恐龙相似。此外,这些新标本增加了我们对詹纳遗址鲜为人知的恐龙结构形态的了解,如前肢和轴向骨骼。关键词:高足类副带,卡尼亚诺,蜥脚亚目,蜥脚形目,大龙目,恐龙。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.60
自引率
14.30%
发文量
25
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.
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