http://www.dinozaury.com/forum/viewtopic.php?t=1900
Czy na pewnoTomasz Singer pisze:poczÄ tkowo byĹ oznaczany jako Thecodontosaurus antiquus
Czy na pewnoTomasz Singer pisze:poczÄ tkowo byĹ oznaczany jako Thecodontosaurus antiquus
Bardzo ciekawa pracaCARPENTER, K. & WILSON, Y. 2008. A NEW SPECIES OF CAMPTOSAURUS (ORNITHOPODA: DINOSAURIA) FROM THE MORRISON FORMATION (UPPER JURASSIC) OF DINOSAUR NATIONAL MONUMENT, UTAH, AND A BIOMECHANICAL ANALYSIS OF ITS FORELIMB. ANNALS OF CARNEGIE MUSEUM, VOL. 76, NUMBER 4, PP. 227–263.
A new species, Camptosaurus aphanoecetes, is named for a partial skeleton of ornithopod dinosaur from the Morrison Formation (Upper Jurassic) of Dinosaur National Monument, Utah. The specimen was originally described as Camptosaurus medius Marsh, 1894, and later referred to Camptosaurus dispar (Marsh, 1879). Comparison of the specimen with a large sample of C. dispar from Quarry 13 shows differences in the proportions and shape of various axial and appendicular elements. Based on the dorsoventrally depressed form of the ilium, Camptosaurus depressus Gilmore, 1909 (Lower Cretaceous of South Dakota) is assigned to the Barremian genus Planicoxa DiCroce and Carpenter, 2001, as Planicoxa depressa, new combination. The well-preserved, undistorted forelimb material of C. aphanoecetes allows for a biomechanical analysis. The range of motion is rather limited throughout the forelimb. The analysis supports the quadrupedal locomotion previously hypothesized for Camptosaurus Marsh, 1885, from limb ratios, fusion of the wrist, and presence of short digits.
kamienioĹom 13Dino pisze:Quarry 13
zachowanyDino pisze:Dobrze zachowane, nieznieksztaĹcony materiaĹ koĹczyn C. aphanoecetes pozwoliĹ naukowcom na wykonanie badaĹ biomechanicznych.
EDITCalvo, J.O.; GonzĂĄlez Riga, B.J. & Porfiri, J.D. 2007. A new titanosaur sauropod from the Late Cretaceous of NeuquĂŠn, 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, RincĂłn de los Sauces area, NeuquĂŠn 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.
Calvo, J.O.; Porfiri, J.D. & Novas, F.E. 2007. Discovery of a new ornithopod dinosaur from the Portezuelo Formation (Upper Cretaceous), NeuquĂŠn, 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, NeuquĂŠn 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.
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.
Szybki, krĂłtki tekst na stronÄ gĹĂłwnÄ na podstawie abstraktu i angielskiej Wikipedii.Calvo, J.O.; Porfiri, J.D. & Novas, F.E. 2007. Discovery of a new ornithopod dinosaur from the Portezuelo Formation (Upper Cretaceous), NeuquĂŠn, Patagonia, Argentina. Arquivos do Museu Nacional, Rio do Janeiro, 65(4): 471-483.
Macrogryphosaurus jest rodzajem bazalnego iguanodona z turonu-wczesnego koniaku gĂłrnej kredy formacji Portezuelo (Grupa NeuquĂŠn), z Patagonii w Argentynie. ZostaĹ opisany przez J. O. Calvo, J.D. Porfiri i F. E. Novas w 2007 roku, z M. gondwanicus jako gatunkiem typowym. Makrogryfozaur znany jest z czÄĹciowego szkieletu pozaczaszkowego, w tym szyi, krÄgĂłw i elementĂłw mostka. Podobnie jak inny ornitopod - Talenkauen santacrucensis, miaĹ cienkie pĹytki kostne, poĹoĹźone obok. Analiza filogenetyczna wykazaĹa, Ĺźe makrogryfozaur jest spokrewniony z Talenkauen. Calvo i reszta zaproponowali utworzenie nowego kladu, Elasmaria, dla tych dwĂłch rodzajĂłw.
http://www.dinozaury.com/forum/viewtopic.php?t=1999Sebastian pisze:Na DinoGenera pojawiĹ siÄ nowy rodzaj Loricatosaurus Maidment, Norman, Barrett & Upchurch, 2008. nie mam jednak o nim Ĺźadnych informacji
LĂź, J., Li, T., Zhong, Sh., Ji, Q., Li, Sh. 2008. A New Mamenchisaurid Dinosaur from Middle Jurassic of Yuanmou, Yunnan Province, China. Acta Geologica Sinica 82 (1).
Nowy mamenchizauryd, Eomamenchisaurus yuanmousensis gen et sp. nov., zostaĹ opisany na podstawie niekompletnego szkieletu z formacji Zhanghe, Ĺrodkowej jury Yuanmou, prowincji Yunnan. Nowy takson charakteryzuje siÄ brakiem pleuroceli w krÄgach grzbietowych, oraz krÄgami grzbietowymi z nieznacznie wypukĹÄ powierzchniÄ stawĂłw przednich i sĹabo wklÄsĹymi powierzchniami stawĂłw tylnych. ZroĹniÄte czÄĹci krÄgĂłw grzbietowych sÄ podobne do tych u innych mamenchizaurydĂłw, wĹÄ czajÄ c Mamenchisaurus hochuanesis, M. youngi i Chuanjiesaurus anaensis. Tak wiÄc zroĹniÄcie czÄĹci dziewiÄ tego i dziesiÄ tego krÄgu grzbietowego mogÄ zostaÄ uznane za synapomorficzne cechy Mamenchisauridae.
LĂź, J., Azuma, Y., Chen, R., Zheng, W., Jin, X. 2008. A New Titanisauriform from the Early Late Cretaceous of Dongyang, Zhejiang Province. Acta Geologica Sinica 82 (1).
Nowy tytanizauryform, Dongyangosaurus sinensis gen. et sp. nov. z wczesnej gĂłrnej kredy habstwa Dongyang, prowincji Zhejiang, zostaĹ opisany na podstawie czÄĹciowego szkieletu pozaczaszkowego. Takson ten charakteryzuje specyficzna budowa krÄgĂłw grzbietowych i ogonowych, a takĹźe koĹÄ Ĺonowa krĂłtsza od miednicy. Wspomniana wczeĹniej specyficzna budowa krÄgĂłw tego dinozaura wskazuje na to, Ĺźe tytanizauryformy przedstawiaĹy róşnorodne formy w późnej kredzie Chin.
County a Country jest róşnica! Podane przez Ciebie to wieŠalbo miasto (Country).Tomasz pisze:lub wieŠalbo miasto ;)Dongyang County
To co on, 7 lat czekaĹ na publikacjÄ?Danu pisze:Ibinosaurus Ouyang, 2001