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Registros recuperados: 22 | |
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KELLNER,ALEXANDER W.A.; RODRIGUES,TAISSA; COSTA,FABIANA R.; WEINSCHÜTZ,LUIZ C.; FIGUEIREDO,RODRIGO G.; SOUZA,GEOVANE A. DE; BRUM,ARTHUR S.; ELEUTÉRIO,LÚCIA H.S.; MUELLER,CARSTEN W.; SAYÃO,JULIANA M.. |
Abstract Fossil vertebrates from Antarctica are considerably rare, hampering our understanding of the evolutionary history of the biota from that continent. For several austral summers, the PALEOANTAR project has been carrying out fieldwork in the Antarctic Peninsula in search for fossils, particularly Cretaceous vertebrates. Among the specimens recovered so far are two bones referable to Pterosauria, more specifically to the Pterodacyloidea, the first volant reptiles from Antarctica to be fully described. MN 7800-V (part and counterpart) was recovered from a moraine at the Abernathy Flats (Santa Marta Formation, Lachman Crags Member, Santonian-Campanian) on James Ross Island. It is interpreted as the distal articulation of a first phalanx of the wing... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antarctica; Antarctic Peninsula; Pterosauria; PALEOANTAR; Cretaceous. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000400519 |
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RIGA,BERNARDO J. GONZÁLEZ; LAMANNA,MATTHEW C.; OTERO,ALEJANDRO; DAVID,LEONARDO D. ORTIZ; KELLNER,ALEXANDER W.A.; IBIRICU,LUCIO M.. |
Abstract: In the last two decades, the number of phylogenetically informative anatomical characters recognized in the appendicular skeleton of titanosaurian sauropod dinosaurs has increased dramatically with the discovery of new and comparatively complete specimens. Here we provide an overview of the appendicular skeletal morphology of South American titanosaurs and discuss its significance for phylogenetic reconstruction. The appendicular skeletal diversity of South American titanosaurs is substantially greater than was initially appreciated. Moreover, some regions of the appendicular skeleton, such as the pes, exhibit remarkable variability in form. Multiple synapomorphies of Titanosauria and the less inclusive clades Lithostrotia and Saltasauridae... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Titanosauria; South America; Appendicular skeleton; Osteology; Phylogeny; Colossosauria. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000400514 |
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ALVES,RUY JOSÉ V.; WEKSLER,MARCELO; OLIVEIRA,JOÃO A.; BUCKUP,PAULO A.; POMBAL JR.,JOSÉ P.; SANTANA,HÉLCIO R.G.; PERACCHI,ADRIANO LÚCIO; KELLNER,ALEXANDER W.A.; ALEIXO,ALEXANDRE; LANGGUTH,ALFREDO; ALMEIDA,ALZIRA MARIA P. DE; ALBERNAZ,ANA LUISA; RIBAS,CAMILA C.; ZILBERBERG,CARLA; GRELLE,CARLOS EDUARDO V.; ROCHA,CARLOS F.D.; LAMAS,CARLOS JOSÉ E.; HADDAD,CÉLIO F.B.; BONVICINO,CIBELE R.; PRADO,CYNTHIA P.A.; LIMA,DANIELA O. DE; ROSSA-FERES,DENISE C.; SANTOS,FABRÍCIO R. DOS; SALIMENA,FÁTIMA REGINA G.; PERINI,FERNANDO A.; BOCKMANN,FLÁVIO A.; FRANCO,FRANCISCO LUÍS; GIUDICE,GISELE M.L. DEL; COLLI,GUARINO R.; VIEIRA,IMA CÉLIA G.; MARINHO-FILHO,JADER; WERNECK,JANE M.C.F.; SANTOS,JORGE A.D. DOS; NASCIMENTO,JORGE LUIZ DO; NESSIMIAN,JORGE LUIZ; CORDEIRO,JOSÉ LUIS P.; CLARO,KLEBER DEL; SALLES,LEANDRO O.; CASATTI,LILIAN; PY-DANIEL,LUCIA HELENA R.; SILVEIRA,LUÍS FÁBIO; TOLEDO,LUÍS FELIPE; OLIVEIRA,LUIZ F. DE; MALABARBA,LUIZ ROBERTO; SILVA,MARCELO D. DA; COURI,MÁRCIA S.; MARTINS,MÁRCIO; TAVARES,MARCOS D.S.; SOBRAL,MARCOS EDUARDO G.; VIEIRA,MARCUS VINÍCIUS; OLIVEIRA,MARIA DE LOURDES A.; PINNA,MÁRIO DE; HOPKINS,MICHAEL J.G.; SOLÉ,MIRCO; MENEZES,NAÉRCIO A.; PASSOS,PAULO; D’ANDREA,PAULO SERGIO; PINTO,PEDRO C.E.A.; VIANA,PEDRO L.; TOLEDO,PETER M.; REIS,ROBERTO E.; VILELA,ROBERTO; BASTOS,ROGÉRIO P.; COLLEVATTI,ROSANE G.; CERQUEIRA,RUI; CASTROVIEJO-FISHER,SANTIAGO; CARAMASCHI,ULISSES. |
Tipo: Info:eu-repo/semantics/other |
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Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401279 |
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KELLNER,ALEXANDER W.A.; WEINSCHÜTZ,LUIZ C.; HOLGADO,BORJA; BANTIM,RENAN A.M.; SAYÃO,JULIANA M.. |
Abstract Abstract: The first pterosaur bone bed from Brazil was reported in 2014 at the outskirts of the town Cruzeiro do Oeste, Paraná State, in the Southern region of the country. Here named 'cemitério dos pterossauros' site, these outcrops were referred to the Goio-Erê Formation (Turonian-Campanian) of the Caiuá Group (Bauru Basin) and revealed the presence of hundreds of isolated or partially articulated elements of the tapejarine pterosaur Caiuajara and fewer amounts of a theropod dinosaur. Here we present a new tapejaromorph flying reptile from this site, Keresdrakon vilsoni gen. et sp. nov., which shows a unique blunt ridge on the dorsal surface of the posterior end of the dentary. Morphological and osteohistological features indicate that all... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Paleoecology; Pterosauria; Pterodactyloidea; Keresdrakon vilsoni; Paraná; Cretaceous. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000400517 |
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Registros recuperados: 22 | |
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