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Previtera,Elena; González Riga,Bernardo J.. |
Se dan a conocer nuevos vertebrados fósiles procedentes de la Formación Loncoche aflorante en el área de Calmu-Co, provincia de Mendoza, Argentina. En esta localidad los niveles inferiores de la formación corresponden a ambientes lacustres y fluviales meandriformes (asociaciones de facies A y B, respectivamente) mientras que los niveles suprayacentes se asignan a depósitos marino-marginales (asociación de facies C). Los vertebrados, procedentes de la asociación de facies C, comprenden peces (por ej. Chondrichthyes, Teleostei, Lepisosteidae y Dipnoi) tortugas Chelidae (cf. Yaminuechelys, cf. Prochelidella), dinosaurios (Titanosauria) y plesiosaurios (Elasmosauridae). Provienen de facies clásticas y calcáreas (mudstones y grainstones) asignadas a canales y... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Argentina; Mendoza; Formación Loncoche; Cretácico Superior; Vertebrados. |
Ano: 2008 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142008000200008 |
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González Riga,Bernardo J.. |
Speed estimations from trackways of Titanopodus mendozensis González Riga and Calvo provide information about the locomotion of titanosaurian sauropods that lived in South America during the Late Cretaceous. Titanopodus ichnites were found at Agua del Choique, a newly discovered track site in the Loncoche Formation, Late Campanian-Early Maastrichtian of Mendoza, Argentina. This speed study follows the hypothesis of dynamic similarity proposed by Alexander. As a refinement of this method, a complementary equation is presented here based on an articulated titanosaurian specimen collected in strata that are regarded as correlative to those that have yielded Titanopodus tracks (Allen Formation, Neuquén Basin). This analysis indicates that hip height can be... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Speed; Sauropoda; Titanopodus; Cretaceous; Argentina. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000100016 |
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