A New Early Coelophysoid Neotheropod from the Late Triassic of Northwestern Argentina

@article{Ezcurra2017ANE,
  title={A New Early Coelophysoid Neotheropod from the Late Triassic of Northwestern Argentina},
  author={Mart{\'i}n Daniel Ezcurra},
  journal={Ameghiniana},
  year={2017},
  volume={54},
  pages={506 - 538}
}
  • M. Ezcurra
  • Published 14 August 2017
  • Biology, Geography
  • Ameghiniana
Abstract. Neotheropoda includes the vast majority of the predatory dinosaurs and their oldest members are Late Triassic in age. The Triassic neotheropod record is restricted to North America and Europe with the exception of a few specimens from South America, which includes Zupaysaurus rougieri and Lucianovenator bonoi. Here, the South American record of the group is enriched with the description of the new genus and species Powellvenator podocitus from the middle Norian Los Colorados… 

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ABSTRACT Theropod dinosaurs are minor components of Late Triassic ecosystems in North America, comprising coelophysoids and various non-neotheropods from the Chinle Formation of Arizona, Utah,

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THE VALIDITY OF LAGOSUCHUS TALAMPAYENSIS ROMER, 1971 (ARCHOSAURIA, DINOSAURIFORMES), FROM THE LATE TRIASSIC OF ARGENTINA

Lagosuchus talampayensis is here considered a senior synonym of “Marasuchus lilloensis” (Romer, 1972) and its conclusions have implications in the knowledge about early dinosauromorph diversity and the taxonomic richness of the group in the Chañares Formation.

Pendraig milnerae, a new small-sized coelophysoid theropod from the Late Triassic of Wales

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A Sauropodomorph (Dinosauria, Saurischia) Specimen from the Upper Triassic of Southern Brazil and the Early Increase in Size in Sauropodomorpha

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A Late Norian—Rhaetian Coelophysid Neotheropod (Dinosauria, Saurischia) from the Quebrada Del Barro Formation, Northwestern Argentina

The presence of Lucianovenator bonoi in the late Norian—Rhaetian of Argentina increases the poor and scarce record of Triassic South American neotheropods, suggesting that the virtual absence of theropods in the fossil record during the Rhaetians is probably a taphonomic/ stratigraphic bias instead of a decline in diversity and abundance after the Norian.

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