The basal dinocephalian clade Stenocybusidae was known from two incomplete specimens representing one generus,Stenocybus,from Dashankou fanua in Yumen,Gansu Province of China.The holotype of Stenocybus acidentatus is ...The basal dinocephalian clade Stenocybusidae was known from two incomplete specimens representing one generus,Stenocybus,from Dashankou fanua in Yumen,Gansu Province of China.The holotype of Stenocybus acidentatus is laterally compressed,making some characters unclear.Here we describe two new specimens of Stenocybus acidentatus from the same locality,an anterior portion of skull with articulated jaws,and a right dentary with nearly complete dentition.They show some detailed features on the morphology of the premaxilla,maxilla,nasal,external nares and dentary.The phylogenetic relationship between Stenocybus acidentatus and the relatively large Sinophoneus yumenensis is still difficult to determine,and needs more new complete material and further evidences.展开更多
In 1981, the working group for continental Permian and Triassic sequences from the Institute of Geology, Ministry of Geology and Mineral Resources, and Gansu Institute of Geology and Mineral Resources under Gansu Bure...In 1981, the working group for continental Permian and Triassic sequences from the Institute of Geology, Ministry of Geology and Mineral Resources, and Gansu Institute of Geology and Mineral Resources under Gansu Bureau of Geology and Mineral Resources made an investigation on the Permian and Triassic strata and found some vertebrate fossils. The three-time excavations in 1981, 1982 and 1985 proved that Dashankou of Yumen展开更多
基金funded by the ChinaGeological Survey (Grant No. 1212011120139)
文摘The basal dinocephalian clade Stenocybusidae was known from two incomplete specimens representing one generus,Stenocybus,from Dashankou fanua in Yumen,Gansu Province of China.The holotype of Stenocybus acidentatus is laterally compressed,making some characters unclear.Here we describe two new specimens of Stenocybus acidentatus from the same locality,an anterior portion of skull with articulated jaws,and a right dentary with nearly complete dentition.They show some detailed features on the morphology of the premaxilla,maxilla,nasal,external nares and dentary.The phylogenetic relationship between Stenocybus acidentatus and the relatively large Sinophoneus yumenensis is still difficult to determine,and needs more new complete material and further evidences.
基金Project supported by the National Natural Science Foundation of ChinaDevelopment Foundation of Geological SciencesTechniques under Ministry of Geology and Mineral Resources.
文摘In 1981, the working group for continental Permian and Triassic sequences from the Institute of Geology, Ministry of Geology and Mineral Resources, and Gansu Institute of Geology and Mineral Resources under Gansu Bureau of Geology and Mineral Resources made an investigation on the Permian and Triassic strata and found some vertebrate fossils. The three-time excavations in 1981, 1982 and 1985 proved that Dashankou of Yumen
