1921年第四纪蛋白质类（哺乳动物，石翅目）的体重估计和一个新标本的描述

IF 0.7 4区地球科学 Q4 PALEONTOLOGY

Revista Brasileira De Paleontologia Pub Date : 2020-07-14 DOI:10.4072/rbp.2020.2.06

Martín Ghizzoni, A. Corona, M. Ubilla, Daniel Perea

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引用次数: 2

摘要

第四纪变形类动物（哺乳动物、Litopterna）的体重估计和Frenguelli新利卡普里姆新标本的描述，1921年。利用现存有蹄类动物的预测回归方程，对变形杆菌科第四纪标本的体重进行了估计。根据对牙齿、下颌和颅后尺寸（包括长度、面积和体积）的分析，确定新甲肾上腺素的体重为20–40 kg，而乌拉圭蟾蜍的体重为<70 kg。这项研究结合了通过测量阑尾骨骼、肱骨、胫骨和黄芪的元素获得的估计值。四肢骨骼与身体支撑和运动直接相关，因此它们的测量值比颅骨尺寸更能估计身体质量。此外，还描述和研究了从乌拉圭西南部Colonia Department更新世沉积物中挖出的一种新的N.recens材料。关键词：身体质量，Litoptena，Neolycaphrium recens，Proterotheridae，Uruguayodon alius。通过对当前有蹄类动物的预测回归方程，对变形杆菌科第四纪标本的体重进行了估计。根据对牙齿、下颌和颅后尺寸（包括长度、面积和体积）的分析，确定了新莱卡氏菌的体重在20至40公斤之间，而乌拉圭齿龙的体重在<70公斤之间。这项研究结合了通过测量阑尾骨骼元素、肱骨、胫骨和黄芪获得的估计值。四肢的骨骼与身体的支撑和运动直接相关，因此，它们的测量值比颅骨的尺寸更能估计身体质量。此外，还对乌拉圭西南部科洛尼亚省更新世沉积物中的一种新的N.recens物质进行了描述和研究。关键词：Litoptena，masa下体，新肾上腺素受体，Protrotheridae，乌拉圭齿兽。

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Estimación de masa corporal de proterotéridos del Cuaternario (Mammalia, Litopterna) y descripción de un nuevo ejemplar de Neolicaphrium recens Frenguelli, 1921

Body mass estimation of Quaternary proterotheriids (Mammalia, Litopterna) and description of a new specimen of Neolicaphrium recens Frenguelli, 1921. A body mass estimation for Quaternary specimens of the family Proterotheriidae was performed using predictive regression equations for extant ungulates. A body mass of 20 –40 kg for Neolicaphrium recens and of <70 kg for Uruguayodon alius are determined based on the analysis of dental, mandibular, and postcranial dimensions including lengths, areas, and volumes. This study incorporates estimates obtained through measurements of elements of the appendicular skeleton, humerus, tibia and astragalus. Limb bones are directly related to body support and locomotion, and therefore their measurements are better estimators of body mass than craniodental dimensions. Additionally, is described and studied a new material of N. recens exhumed from Pleistocene deposits of Colonia Department, southwestern Uruguay. Keywords: body mass, Litopterna, Neolicaphrium recens, Proterotheriidae, Uruguayodon alius. Uma estimativa de massa corporal e feita para especimes quaternarios da familia Proterotheriidae por meio de equacoes de regressao preditiva para ungulados atuais. Com base na analise de dimensoes dentaria, mandibular e pos-craniana, que inclui comprimentos, areas e volumes, foram determinadas massas corporais de 20 a 40 kg para Neolicaphrium recens e <70 kg para Uruguayodon alius. Este estudo incorpora estimativas obtidas atraves de medidas de elementos do esqueleto apendicular, umero, tibia e astragalo. Os ossos dos membros estao diretamente relacionados ao suporte e a locomocao do corpo e, portanto, suas medidas sao melhores estimadores de massa corporal do que as dimensoes crânio-dentarias. Alem disso, um novo material de N. recens proveniente de sedimentos pleistocenicos do Departamento de Colonia, sudoeste do Uruguai, e descrito e estudado. Palavras-chave: Litopterna, masa corporal, Neolicaphrium recens, Proterotheriidae, Uruguayodon alius.

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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.