Named By: Li-Guo Li, Da-Qing Li, Hai-Lu You & Peter Dodson - 2014.
Classification: Chordata, Reptilia, Dinosauria, Saurischia, Theropoda, Sauropoda, Titanosauria.
Species: Y. datangi (type).
Size: Uncertain. The holotype fossils are from an incomplete individual, but one that is estimated to have been about 15-18 meters long. Evidence suggests however that this specimen is of a juvenile or subadult and not a fully grown adult, therefor the true adult size remains unknown.
Known locations: China, Gansu province.
Time period: Early Cretaceous.
Fossil representation: Teeth and partial remains including vertebrae, rib, ulna, radius, coracoid and scapula of a juvenile or subadult.
the most unusual feature of Yongjinglong is the
scapula, the part
that is equivalent to your own shoulder blade. Although the holotype
individual has been estimated to have been about fifteen to eighteen
meters long, the shoulder blade was unusually large in proportion at
two meters long in itself. In addition to the huge size, the
scapula was also very straight and did not bow outwards like in other
Assuming that this form is not a case of
distortion while being preserved, this may indicate that Yongjinglong
had an unusual body form in life.
Unfused portions of the shoulder blade have also revealed that the individual Yongjinglong described as the holotype was either a juvenile or subadult at the time of its death. This means that while the holotype individual is estimated at about fifteen to eighteen meters long, fully grown adults would have certainly been larger.
Yongjinglong was named after Yongjing County in Gansu Province, China due to the location of the holotype remains. The species name Y. datangi is in honour of the Tang dynasty as well as Mr. Zhi-Lu Tang for his work in the study of dinosaurs.
- A New Titanosaurian Sauropod from the Hekou Group (Lower Cretaceous) of the Lanzhou-Minhe Basin, Gansu Province, China - In Butler, Richard J. PLoS ONE 9: e85979 - Li-Guo Li, Da-Qing Li, Hai-Lu You & Peter Dodson - 2014.