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A Chinese-foreign research team led by the Institute of Geology of the Chinese Academy of Geosciences, Jiangxi Institute of Applied Technology and Vocational College, etc., recently discovered a new egg-stealing dragon fossil in Ganzhou, Jiangxi Province, and named the new dinosaur Jie's Crown Dragon, the results of which were published on July 27 in the international academic journal Scientific Report.
According to Lu Junchang, a researcher at the Institute of Geology of the Chinese Academy of Geoscients, this new egg-stealing dragon fossil was found in the red sandstone of the late Cretaceous period in Zhangzhou region, the fossils are three-dimensionally preserved and basically intact, the neck is curly, the entire spinal series is related, this discovery "increases the number of egg-stealing dragons in the dinosaur animal group in Zhangzhou to 7".
system development analysis shows that, although the Jie's crown dragon and the south China dragon also found in the Ganzhou region have a close kinship, but also significantly different from other species in the region, such as the head has a very large turkey-like head ridge; In view of the features of the frontal tail vertebrae with side holes, recessive recesses in the strial shape, extension of the palate below the edge of the cheek, short front part and no teeth, the scientists classified The Jay's crown dragon as a stolen egg dragon.
-osteomanomic analysis showed that the positive specimens of Jacly's coronary dragon did not reach a stable growth stage, but died at a reduced growth rate, while osteomanomic studies showed that the egg-stealing dragon was only equivalent to an immature 8-year-old individual.
" Based on a comparison with the internal structure of the raw turkey head ridge, we infer that Jess's protruding 'helmet' (skull ridge) is a versatile structure for showing off to the opposite sex, conveying information, and indicating his health during mating season.
," Lu Junchang explains.
scientists believe that the discovery of Jess's crown dragon provides unique evidence for the morphological and taxonomic study of this branch of the stolen egg dragon in the Ganzhou region.
Source: Guangming Daily