A new basal titanosaur (Dinosauria, Sauropoda) from the Lower Cretaceous of Brazil

被引：22

作者：

Carvalho, Ismar de Souza ^{[1
]}

Salgado, Leonardo ^{[2
]}

Lindoso, Rafael Matos ^{[3
]}

de Araujo-Junior, Herminio Ismael ^{[4
]}

Costa Nogueira, Francisco Cezar ^{[5
]}

Soares, Jose Agnelo ^{[6
]}

机构：

[1] Univ Fed Rio de Janeiro, CCMN IGEO 21, Dept Geol, 949-900 Cidade Univ Ilha Fundao, Rio De Janeiro, Brazil

[2] UNRN, CONICET, Inst Invest Paleobiol & Geol, Av Gen Roca 1242, RA-8332 General Roca, Rio Negro, Argentina

[3] Inst Fed Educ Ciencia & Tecnol Maranhao, Rua Tecnol 215 Vila Amorim, BR-365000 Maranhao, Brazil

[4] Univ Estado Rio de Janeiro, Fac Geol, Dept Estratig & Paleontol, Rua Sao Francisco Xavier,524 2 Andar,Sala 2032A, BR-20550013 Rio De Janeiro, Brazil

[5] Univ Fed Campina Grande, Unidade Acad Engn Mecan, Ave Aprigio Veloso,812 Bairro Univ, BR-58429140 Campina Grande, Paraiba, Brazil

[6] Univ Fed Campina Grande, Unidade Acad Min & Geol, Ave Aprigio Veloso,882 Bloco BY Bairro Univ, BR-58429900 Campina Grande, Paraiba, Brazil

来源：

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES | 2017年 / 75卷

关键词：

Triunfo Basin; Titanosauria; Triunfosaurus leonardii gen. et sp nov; BAURU GROUP; ALCANTARA FORMATION; BASIN; STATE;

D O I：

10.1016/j.jsames.2017.01.010

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Although dinosaurian ichnofaunas are common in the Northeastern Brazilian Interior Basins, osteological remains are poorly represented in these areas. One of the main challenges in vertebrate paleontology in the Lower Cretaceous of this region is to recognize body-fossils, which can unveil the anatomy, functional morphology and paleoecological aspects of the dinosaurian fauna recorded until now only by footprints and trackways. The discovery of a new dinosaur specimen in the Rio Piranhas Formation of the Triunfo Basin opens new perspectives into the comprehension of paleogeographical and temporal distribution of the titanosaur sauropods. Titanosaurs are common in Upper Cretaceous rocks of Brazil and Argentina. The age of the Rio Piranhas Formation is considered to range from Berriasian to early Hauterivian. Thus, the description of this new species opens new viewpoints concerning the paleobiogeographical aspects of these sauropod dinosaurs. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：74 / 84

页数：11

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