We describe a new titanosaurian sauropod dinosaur, Borealosaurus wimani gen. et sp. nov., based on a distinctive mid-distal caudal vertebra from the early Late Cretaceous Sunjiawan Formation exposed in the Shuangmiao ...We describe a new titanosaurian sauropod dinosaur, Borealosaurus wimani gen. et sp. nov., based on a distinctive mid-distal caudal vertebra from the early Late Cretaceous Sunjiawan Formation exposed in the Shuangmiao village of Beipiao in Liaoning, China. We provisionally refer an isolated tooth crown, a middle caudal vertebra, and a right humerus from the same locality and horizon to this taxon. Borealosaurus is distinguished from other sauropods in its possession of opisthocoelous mid-distal caudal vertebrae. The occurrence of opisthocoelous caudals in Borealosaurus and the Mongolian sauropod Opisthocoelicaudia raises the possibility that these taxa pertain to an as-yet unrecognized titanosaurian subclade endemic to the Cretaceous Asia.展开更多
A new dinosaur of Early Cretaceous age was recently discovered from the Mazongshan area of northwestern Gansu Province, China. The new dinosaur represents a new genus and species of Sauropoda, and is among the most ba...A new dinosaur of Early Cretaceous age was recently discovered from the Mazongshan area of northwestern Gansu Province, China. The new dinosaur represents a new genus and species of Sauropoda, and is among the most basal members of Titanosauria. Its finding also suggests that titanosaurs might have originated in Asia no later than the Early Cretaceous.展开更多
Titanosaurs articulated cranial elements especially jaw bones with articulated complete teeth row are extraordinarily rare. Here the holotypic snout with articulated jaw bones and complete teeth row of Saraikimasoom v...Titanosaurs articulated cranial elements especially jaw bones with articulated complete teeth row are extraordinarily rare. Here the holotypic snout with articulated jaw bones and complete teeth row of Saraikimasoom vitakri are being presented which has international significance and contributes to understanding the evolutionary relationships and paleobiogeographic history of the vertebrates of Indo-Pakistan subcontinent. The completeness of the skeleton, in particular the presence of a well-preserved skull has a significant influence on resolution of titanosaur phylogeny. Here Saraikimasoom vitakri holotypic snout from South Kinwa, and referred jaw with articulated pointed and rounded teeth along with associated postcranial fossils from north Kinwa, and other associated materials from Mari Bohri, mid-Sangiali, Zubra Basti Nala and Grut localities of Pakistan are being presented. All these assemblages show consistent results.展开更多
Titanosaurs’ crania are rare in the global world. Further titanosaur crania associated with postcrania are again negligible which prevented for its higher and lower level phylogenetic studies. The titanosaur skulls w...Titanosaurs’ crania are rare in the global world. Further titanosaur crania associated with postcrania are again negligible which prevented for its higher and lower level phylogenetic studies. The titanosaur skulls were also extraordinarily rare in Indo-Pakistan subcontinent, but the recent discoveries of holotypic skull, braincase and associated postcranial skeleton of Gspsaurus pakistani is anatomical wealth. Further its exemplar’ skeletons from Top Kinwa and Mari Bohri of Pakistan and Chota Simla from India provide more information which can be used for comparison. Here the holotypic partial skull with braincase and associated postcranial skeleton and also its exemplars and referred materials with key elements of Gspsaurus pakistani are being presented which have international significance and contribute to understanding the evolutionary relationships, higher and lower level phylogenetic studies and paleobiogeographic history of the vertebrates of Indo-Pakistan subcontinent.展开更多
Recently two slender and medium to large sized titanosaur taxa like Pakisaurus balochistani and Isisaurus colberti of pakisaurids Poripuch along with small sized stocky Saraikimasoom and medium sized stocky Gspsaurus ...Recently two slender and medium to large sized titanosaur taxa like Pakisaurus balochistani and Isisaurus colberti of pakisaurids Poripuch along with small sized stocky Saraikimasoom and medium sized stocky Gspsaurus of gspsaurids Poripuch have been recognized from Indo-Pakistan subcontinent. The diagnosis and description of Pakisaurus balochistani and some missing elements of Isisaurus colberti discovered from Pakistan are added here for understanding of possible fuller anatomy of slender titanosaurs. Further so far no any research information regarding the comparison of titanosaurs of India and Pakistan is available. Here present research provides the comparison between titanosaurs recognized from Pakistan and India.展开更多
文摘We describe a new titanosaurian sauropod dinosaur, Borealosaurus wimani gen. et sp. nov., based on a distinctive mid-distal caudal vertebra from the early Late Cretaceous Sunjiawan Formation exposed in the Shuangmiao village of Beipiao in Liaoning, China. We provisionally refer an isolated tooth crown, a middle caudal vertebra, and a right humerus from the same locality and horizon to this taxon. Borealosaurus is distinguished from other sauropods in its possession of opisthocoelous mid-distal caudal vertebrae. The occurrence of opisthocoelous caudals in Borealosaurus and the Mongolian sauropod Opisthocoelicaudia raises the possibility that these taxa pertain to an as-yet unrecognized titanosaurian subclade endemic to the Cretaceous Asia.
文摘A new dinosaur of Early Cretaceous age was recently discovered from the Mazongshan area of northwestern Gansu Province, China. The new dinosaur represents a new genus and species of Sauropoda, and is among the most basal members of Titanosauria. Its finding also suggests that titanosaurs might have originated in Asia no later than the Early Cretaceous.
文摘Titanosaurs articulated cranial elements especially jaw bones with articulated complete teeth row are extraordinarily rare. Here the holotypic snout with articulated jaw bones and complete teeth row of Saraikimasoom vitakri are being presented which has international significance and contributes to understanding the evolutionary relationships and paleobiogeographic history of the vertebrates of Indo-Pakistan subcontinent. The completeness of the skeleton, in particular the presence of a well-preserved skull has a significant influence on resolution of titanosaur phylogeny. Here Saraikimasoom vitakri holotypic snout from South Kinwa, and referred jaw with articulated pointed and rounded teeth along with associated postcranial fossils from north Kinwa, and other associated materials from Mari Bohri, mid-Sangiali, Zubra Basti Nala and Grut localities of Pakistan are being presented. All these assemblages show consistent results.
文摘Titanosaurs’ crania are rare in the global world. Further titanosaur crania associated with postcrania are again negligible which prevented for its higher and lower level phylogenetic studies. The titanosaur skulls were also extraordinarily rare in Indo-Pakistan subcontinent, but the recent discoveries of holotypic skull, braincase and associated postcranial skeleton of Gspsaurus pakistani is anatomical wealth. Further its exemplar’ skeletons from Top Kinwa and Mari Bohri of Pakistan and Chota Simla from India provide more information which can be used for comparison. Here the holotypic partial skull with braincase and associated postcranial skeleton and also its exemplars and referred materials with key elements of Gspsaurus pakistani are being presented which have international significance and contribute to understanding the evolutionary relationships, higher and lower level phylogenetic studies and paleobiogeographic history of the vertebrates of Indo-Pakistan subcontinent.
文摘Recently two slender and medium to large sized titanosaur taxa like Pakisaurus balochistani and Isisaurus colberti of pakisaurids Poripuch along with small sized stocky Saraikimasoom and medium sized stocky Gspsaurus of gspsaurids Poripuch have been recognized from Indo-Pakistan subcontinent. The diagnosis and description of Pakisaurus balochistani and some missing elements of Isisaurus colberti discovered from Pakistan are added here for understanding of possible fuller anatomy of slender titanosaurs. Further so far no any research information regarding the comparison of titanosaurs of India and Pakistan is available. Here present research provides the comparison between titanosaurs recognized from Pakistan and India.
