Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Anais da ABC (AABC) (4) Autor Azevedo,Sergio A.K. (4) Grillo,Orlando N. (2) Campos,Diogenes A. (1) Carvalho,Luciana B. (1) Carvalho,Luciana B. de (1) Figueiredo,Rodrigo G. (1) Henriques,Deise D.R. (1) Kellner,Alexander W.A. (1) Kellner,Alexander WA. (1) Machado,Elaine B. (1) Oliveira,Gustavo R. (1) Riff,Douglas (1) Mais... Palavra-chave Brazil (2) Staurikosaurus pricei (2) Bauru Group (1) Caudal vertebra (1) Cenomanian (1) Cretaceous (1) Dinosauria (1) Extant phylogenetic bracket (1) Locomotion (1) Missing data (1) Muscular reconstruction (1) Oxalaia quilombensis (1) Peirosauridae (1) Pepesuchus (1) Regression (1) Saurischia (1) Spinosauridae (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Ano 2011 (4) País Brazil (4) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última A new dinosaur (Theropoda, Spinosauridae) from the Cretaceous (Cenomanian) Alcântara Formation, Cajual Island, Brazil Anais da ABC (AABC) Kellner,Alexander WA.; Azevedo,Sergio A.K.; Machado,Elaine B.; Carvalho,Luciana B. de; Henriques,Deise D.R.. A new spinosaurid taxon, Oxalaia quilombensis gen. et sp. nov., is described based on the anterior part of a snout and a fragment of a maxilla. These specimens were collected at the Laje do Coringa site, Late Cretaceous (Cenomanian) of the São Luis Basin. Unlike Cristatusaurus and Suchomimus, Oxalaia quilombensis lacks serrations on the teeth. The new species differs from Angaturama limai by having the anterior part of the premaxillae more expanded and by lacking a sagittal premaxillary crest. It further differs from Spinosaurus cf. S. aegyptiacus and the Algerian spinosaurid by the rounder shape of the terminal expansion. Furthermore, xalaia quilobensis has one functional tooth followed by two replacement teeth, a feature not previously observed in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Dinosauria; Spinosauridae; Oxalaia quilombensis; Cenomanian; Brazil. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000100006 On a new peirosaurid crocodyliform from the Upper Cretaceous, Bauru Group, southeastern Brazil Anais da ABC (AABC) Campos,Diogenes A.; Oliveira,Gustavo R.; Figueiredo,Rodrigo G.; Riff,Douglas; Azevedo,Sergio A.K.; Carvalho,Luciana B.; Kellner,Alexander W.A.. A new crocodyliform from the Upper Cretaceous (Campanian-Maastrichtian) Presidente Prudente Formation of the Bauru Group is described based on two almost complete skulls and mandibles. The material comes from the "Tartaruguito" site, situated at an old railroad between the cities of Pirapozinho and Presidente Prudente, state of São Paulo, Brazil. The new species, Pepesuchus deiseae gen. et sp. nov., is classified in the clade Peirosauridae on the basis of three synapomorphies: the presence of five premaxillary teeth, the anterior two premaxillary alveoli nearly confluent, and the oval cross-section of the jugal along the lower temporal bar. The new taxon increases the outstanding crocodyliform diversity of the Bauru Group, particularly of the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Pepesuchus; Peirosauridae; Cretaceous; Bauru Group; Brazil. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000100020 Pelvic and hind limb musculature of Staurikosaurus pricei (Dinosauria: Saurischia) Anais da ABC (AABC) Grillo,Orlando N.; Azevedo,Sergio A.K.. The study of pelvic and hind limb bones and muscles in basal dinosaurs is important for understanding the early evolution of bipedal locomotion in the group. The use of data from both extant and extinct taxa placed into a phylogenetic context allowed to make well-supported inferences concerning most of the hind limb musculature of the basal saurischian Staurikosaurus pricei Colbert, 1970 (Santa Maria Formation, Late Triassic of Rio Grande do Sul, Brazil). Two large concavities in the lateral surface of the ilium represent the origin of the muscles iliotrochantericus caudalis plus iliofemoralis externus (in the anterior concavity) and iliofibularis (in the posterior concavity). Muscle ambiens has only one head and originates from the pubic tubercle. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Extant phylogenetic bracket; Locomotion; Muscular reconstruction; Saurischia; Staurikosaurus pricei. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000100005 Recovering missing data: estimating position and size of caudal vertebrae in Staurikosaurus pricei Colbert, 1970 Anais da ABC (AABC) Grillo,Orlando N.; Azevedo,Sergio A.K.. Missing data is a common problem in paleontology. It makes it difficult to reconstruct extinct taxa accurately and restrains the inclusion of some taxa on comparative and biomechanical studies. Particularly, estimating the position of vertebrae on incomplete series is often non-empirical and does not allow precise estimation of missing parts. In this work we present a method for calculating the position of preserved middle sequences of caudal vertebrae in the saurischian dinosaur Staurikosaurus pricei, based on the length and height of preserved anterior and posterior caudal vertebral centra. Regression equations were used to estimate these dimensions for middle vertebrae and, consequently, to assess the position of the preserved middle sequences. It also... Tipo: Info:eu-repo/semantics/article Palavras-chave: Missing data; Caudal vertebra; Regression; Staurikosaurus pricei. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000100004 Registros recuperados: 4 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco