Une petite publi
Ca date du début du mois:
Butler, R.J., Zhao, Q. The smal-bodied ornithischian dinosaurs Micropachycephalosaurus
hongtuyanensis and Wannanosaurus yansiensis from the Late Cretaceous of China, Cretaceous Research (2008), doi: 10.1016/j.cretres.2008.03.002
Abstract
The type material of the small-bodied ornithischian dinosaurs Micropachycephalosaurus
hongtuyanensis and Wannanosaurus yansiensis from the Late Cretaceous of China is reviewed.
Micropachycephalosaurus, from the Wangshi Formation (Campanian) of Shandong Province,
was originally referred to the clade Pachycephalosauria, but some later authors have considered
it a nomen dubium. However, despite the extremely fragmentary nature of the holotype
specimen, Micropachycephalosaurus can be diagnosed by the presence of prominent grooves on
the ventral surface of the centra of the posterior dorsal vertebra. Unambiguous pachycephalosaur synapomorphies cannot be identified in the currently available material, and we consider this
taxon Cerapoda incertae sedis. Wannanosaurus, from the Xiaoyan Formation (Campanian-?early
Maastrichtian) of Anhui Province, can be diagnosed by the extreme flexure of the humerus, and
is clearly referable to Pachycephalosauria on the basis of a large number of synapomorphies.
Assessment of the phylogenetic placement of this Wannanosaurus within Pachycephalosauria is
complicated by the probable juvenile nature of the holotype and paratype specimens.
Discussion:
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Posté par Damien35
Posté par Damien35
2 nouveaux dinos :
Muyelensaurus pecheni
Calvo, J.O.; González Riga, B.J. & Porfiri, J.D. 2007. A new titanosaur sauropod from the Late Cretaceous of Neuquén, Patagonia, Argentina. Arquivos do Museu Nacional, Rio do Janeiro, 65(4): 485-504.
ABSTRACT: The discovery of Muyelensaurus pecheni gen. et sp.nov., a new slender titanosaurid, is relevant from anatomical and systematic viewpoints. The specimens come from the Upper Cretaceous strata of the Portezuelo Formation (Turonian-Early Coniacian) at Loma del Lindero, Rincón de los Sauces area, Neuquén Province, Argentina.
The remains include a braincase, cervical, dorsal, sacral and caudal vertebrae, and numerous appendicular bones. It is characterized by the following association of autapomorphies: basal tubera diverge 70 degrees from each other; thin and concave lamina that unit basal tubera ventrally, basioccipital condyle wider than the proximal portion of the basal tubera; posterior dorsal neural spines with large prespinal lamina reinforced by two small accessory laminae, distal end of pubic blade rectangular and medially thick.
A cladistic phylogenetic analysis placed Muyelensaurus pecheni gen. et sp.nov. and Rinconsaurus caudamirus in a new eutitanosaur clade named herein Rinconsauria. This new clade include middle-sized sauropods different from Aeolosaurini, Opisthocoelicaudiinae or Saltasaurinae taxa.
et Macrogryphosaurus gondwanicus
Calvo, J.O.; Porfiri, J.D. & Novas, F.E. 2007. Discovery of a new ornithopod dinosaur from the Portezuelo Formation (Upper Cretaceous), Neuquén, Patagonia, Argentina. Arquivos do Museu Nacional, Rio do Janeiro, 65(4): 471-483.
Abstract: We describe the postcranial skeleton of a new Cretaceous ornithopod, Macrogryphosaurus gondwanicus gen.nov., sp.nov. from Patagonia, Argentina. The specimen was found in the Portezuelo Formation, Neuquén Group, Upper Cretaceous. Macrogryphosaurus gondwanicus gen.nov., sp.nov. is diagnosed by having triradiate sternum with the anterior border tribranched, two laterally placed and outwardly directed, and one centrally placed, smaller, and forwardly directed. Sternal ribs flattened, twisted and distally expanded.
Last dorsal vertebra with well-developed hyposphene. A thin plate-like are located in front of the sterna. Together with these autapomorphies, this new species of ornithopod differs from Talenkauen santacrucensis by having the pubic peduncle of ilium less developed, a more acute angle between the anterior process of ilium and the pubic peduncle, the acetabular cavity slightly marked.
Also present ten cervical vertebrae, fourteen dorsal vertebrae, epipophyses on the third cervical vertebra placed over the distal end of the postzygapophyses and posteriorly projected. The presence of plates on the lateral side of the thorax and well developed epipophyses on the third cervical vertebra, were originally interpreted as autapomorphies for the euiguanodontian Talenkauen santacrucensis. These features are also present in Macrogryphosaurus gondwanicus gen.nov, sp.nov., and are regarded as synapomorphies defining a new clade of Euiguanodontia dinosaurs comprising the two species: Elasmaria nov.
Certaines parutions de la revue sont disponibles sur internet mais pas celle là, y'a t'il quelqu'un qui l'a ?
Muyelensaurus pecheni
Calvo, J.O.; González Riga, B.J. & Porfiri, J.D. 2007. A new titanosaur sauropod from the Late Cretaceous of Neuquén, Patagonia, Argentina. Arquivos do Museu Nacional, Rio do Janeiro, 65(4): 485-504.
ABSTRACT: The discovery of Muyelensaurus pecheni gen. et sp.nov., a new slender titanosaurid, is relevant from anatomical and systematic viewpoints. The specimens come from the Upper Cretaceous strata of the Portezuelo Formation (Turonian-Early Coniacian) at Loma del Lindero, Rincón de los Sauces area, Neuquén Province, Argentina.
The remains include a braincase, cervical, dorsal, sacral and caudal vertebrae, and numerous appendicular bones. It is characterized by the following association of autapomorphies: basal tubera diverge 70 degrees from each other; thin and concave lamina that unit basal tubera ventrally, basioccipital condyle wider than the proximal portion of the basal tubera; posterior dorsal neural spines with large prespinal lamina reinforced by two small accessory laminae, distal end of pubic blade rectangular and medially thick.
A cladistic phylogenetic analysis placed Muyelensaurus pecheni gen. et sp.nov. and Rinconsaurus caudamirus in a new eutitanosaur clade named herein Rinconsauria. This new clade include middle-sized sauropods different from Aeolosaurini, Opisthocoelicaudiinae or Saltasaurinae taxa.
et Macrogryphosaurus gondwanicus
Calvo, J.O.; Porfiri, J.D. & Novas, F.E. 2007. Discovery of a new ornithopod dinosaur from the Portezuelo Formation (Upper Cretaceous), Neuquén, Patagonia, Argentina. Arquivos do Museu Nacional, Rio do Janeiro, 65(4): 471-483.
Abstract: We describe the postcranial skeleton of a new Cretaceous ornithopod, Macrogryphosaurus gondwanicus gen.nov., sp.nov. from Patagonia, Argentina. The specimen was found in the Portezuelo Formation, Neuquén Group, Upper Cretaceous. Macrogryphosaurus gondwanicus gen.nov., sp.nov. is diagnosed by having triradiate sternum with the anterior border tribranched, two laterally placed and outwardly directed, and one centrally placed, smaller, and forwardly directed. Sternal ribs flattened, twisted and distally expanded.
Last dorsal vertebra with well-developed hyposphene. A thin plate-like are located in front of the sterna. Together with these autapomorphies, this new species of ornithopod differs from Talenkauen santacrucensis by having the pubic peduncle of ilium less developed, a more acute angle between the anterior process of ilium and the pubic peduncle, the acetabular cavity slightly marked.
Also present ten cervical vertebrae, fourteen dorsal vertebrae, epipophyses on the third cervical vertebra placed over the distal end of the postzygapophyses and posteriorly projected. The presence of plates on the lateral side of the thorax and well developed epipophyses on the third cervical vertebra, were originally interpreted as autapomorphies for the euiguanodontian Talenkauen santacrucensis. These features are also present in Macrogryphosaurus gondwanicus gen.nov, sp.nov., and are regarded as synapomorphies defining a new clade of Euiguanodontia dinosaurs comprising the two species: Elasmaria nov.
Certaines parutions de la revue sont disponibles sur internet mais pas celle là, y'a t'il quelqu'un qui l'a ?
Posté par Tikémi
Je t'envoie Macrogryphosaurus, Lolo doit avoir Muyelensaurus je pense.
Posté par Lolo
A noter que la même publi propose une petite ostéologie de Futalognkosaurus, et un nouveau croc Neuquensuchus
Posté par Damien35
Merci tiky et lolo 
Posté par Lolo
Pour ce faire, y a un autre moyen
tu fais http://www.proyectodino.com.ar/, et tu cliques sur "produccion cientifica", et là t'as de quoi faire
tu fais http://www.proyectodino.com.ar/, et tu cliques sur "produccion cientifica", et là t'as de quoi faire
Posté par Damien35
Journal of systematic palaeontology juin 2008:
Phylogeny of Allosauroidea (Dinosauria: Theropoda): comparative analysis and resolution
Stephen L. Brusatte and Paul C. Sereno
Journal of Systematic Palaeontology, Volume 6, Issue 02, June 2008, pp 155-182
The Phylogeny of Ceratosauria (Dinosauria: Theropoda)
Matthew T. Carrano and Scott D. Sampson
Journal of Systematic Palaeontology, Volume 6, Issue 02, June 2008, pp 183-236
Quelqu'un a?
Phylogeny of Allosauroidea (Dinosauria: Theropoda): comparative analysis and resolution
Stephen L. Brusatte and Paul C. Sereno
Journal of Systematic Palaeontology, Volume 6, Issue 02, June 2008, pp 155-182
The Phylogeny of Ceratosauria (Dinosauria: Theropoda)
Matthew T. Carrano and Scott D. Sampson
Journal of Systematic Palaeontology, Volume 6, Issue 02, June 2008, pp 183-236
Quelqu'un a?
Posté par Damien35
Et à venir :
Systematics and phylogeny of Stegosauria (Dinosauria: Ornithischia)
Susannah C. R. Maidment, David B. Norman, Paul M. Barrett and Paul Upchurch
Journal of Systematic Palaeontology, Forthcoming article
Systematics and phylogeny of Stegosauria (Dinosauria: Ornithischia)
Susannah C. R. Maidment, David B. Norman, Paul M. Barrett and Paul Upchurch
Journal of Systematic Palaeontology, Forthcoming article
Posté par Tikémi
Celui de Maidment est déjà en circulation 
Pour les 2 précédents, je ne sais pas.
Pour les 2 précédents, je ne sais pas.
Posté par Nekarius
Les deux autres sont bien accessibles sur le site de la revue :
http://journals.cambridge.org/action/displayJournal?jid=SYP
Je sais pas si tu y as accès Damien mais puisque je les ai téléchargés, je peux te les envoyer par Msn (nekarius@hotmail.com)...
Nekar
http://journals.cambridge.org/action/displayJournal?jid=SYP
Je sais pas si tu y as accès Damien mais puisque je les ai téléchargés, je peux te les envoyer par Msn (nekarius@hotmail.com)...
Nekar
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