INSIGHT ON THE THEROPOD FAUNA FROM THE UBERABA FORMATION (BAURU GROUP), MINAS GERAIS STATE: NEW MEGARAPTORAN SPECIMEN FROM THE LATE CRETACEOUS OF BRAZIL

被引：33
|
作者：
Martinelli, Agustin G. [1 ]
Borges Ribeiro, Luiz Carlos [1 ]
Mendez, Ariel H. [2 ]
Neto, Francisco Macedo [1 ]
Cavellani, Camila Lourencini [1 ]
Felix, Eduardo [1 ]
da Fonseca Ferraz, Mara Lucia [1 ]
Antunes Teixeira, Vicente de Paula [1 ]
机构：
[1] Ctr Pesquisas Paleontol LI Price Complexo Cultura, BR-38039755 Uberaba, MG, Brazil
[2] CONICET Inst Invest Biodiversidad & Medioambiente, San Carlos De Bariloche, Rio Negro, Argentina
来源：
RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA | 2013年 / 119卷 / 02期
关键词：
Uberaba Formation; Megaraptora; caudal vertebra; pneumaticity; ALCANTARA FORMATION; PREDATORY DINOSAUR; MARILIA FORMATION; PATAGONIA; TITANOSAUR; EVOLUTION; NEUQUEN; TEETH;
D O I：
10.13130/2039-4942/6035
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
The first bony theropod record from the Campanian Uberaba Formation (Bauru Group) is described. It consists of an isolated caudal centrum (CPPLIP 1324) found in the city of Uberaba, Minas Gerais State, Brazil. The amphicoelous cents-urn possesses a length to height ratio of 1.74, deep elliptical lateral pneumatic foramen representing 26% of centrum length with three main sub-circular air chambers, and camellate internal structure. This combination of features is shared with Aerosteon, Megaraptor, and Orkoraptor from the Late Cretaceous of Argentina and with the Megaraptora indet. from the Sao Jose do Rio Preto Formation (Baum Group), Sao Paulo State, allowing us to refer it to the Megaraptora clade (Tetanurae, Neovenatoridae). As such, the new specimen represents the second megaraptoran from the Late Cretaceous of Brazil and provides new information on tail anatomy on this bizarre group.
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页码：205 / 214
页数：10
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