Named By: Peng, Ye, Gao, Shu, & Jiang - 2005.
Classification: Chordata, Reptilia, Dinosauria, Saurischia, Sauropoda, Macronaria, Camarasauridae.
Species: D. dongi (type).
Known locations: China - Sichuan Province - Lower Shaximiao Formation.
Time period: Bathonian/Callovian of the Jurassic.
Fossil representation: Initially described from fragmentary post cranial remains, further fossils have now been attributed to it.
is identified as a macronarian sauropod that might by related to the
North American Camarasaurus,
which means that it may have been a more
specialised high browser. This fits in with another genus of sauropod
from the Lower Shaximiao Formation called Abrosaurus
that has also been
considered to be a possible relative of Camarasaurus.
other sauropods from the Lower Shaximiao include Omeisaurus
but these are very different to both Abrosaurus
in form. While the presence of these dinosaurs in the
same fossil formation proves that they were active in the same
approximate location and time as one another, they likely adopted
different feeding strategies and thus avoided something with each other.
Other dinosaurs of the Lower Shaximiao include the small ornithischian Agilisaurus and the stegosaur Huayangosaurus, as well as numerous predatory dinosaurs such as Gasosaurus, Leshansaurus and Kaijiangosaurus. However there was one theropod in particular called Yangchuanosaurus that would have been a particular threat to sauropods like Dashanpusaurus. Yangchuanosaurus was described from a set of remains indicating that it was an eight metre long predator, but further isolated fossils have since revealed that an upper length of eleven meters was possible.