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Diplodocus, depicted with spines limited to the mid-line of the back. Diplodocids were generally large animals, even by sauropod standards. Thanks to their long necks and tails, diplodocids were among the longest sauropods, with some species such as Supersaurus vivianae and Diplodocus hallorum estimated to have reached lengths of 30 meters (100 ft) or more. [3]
Due to the vast amount of scale diversity seen within such a small area, as well as the scales being smaller in comparison to other diplodocid scale fossils, and the presence of small and potentially “juvenile” material at the Mother’s Day Quarry, it is hypothesized that the skin originated from a small or even “juvenile” Diplodocus.
Some debate has arisen regarding the age of the individuals found at the site. Originally the diplodocid specimens from the MDQ were thought to consist solely of juveniles and sub-adults based on the small size of the fossils and the low levels of ossification encountered in these elements.
Diplodocid and brachiosaurid members of the group composed the greater portion of neosauropods during the Jurassic, but they began to be replaced by titanosaurs in most regions through the Cretaceous period. [3] By the late Cretaceous, titanosaurs were the dominant group of neosauropods, especially on the southern continents.
The weight of Amphicoelias fragillimus was estimated at 122.4 metric tons with lengths of up to nearly 60 meters [21] but 2015 research argued that these estimates were based on a diplodocid rather than the more modern rebbachisaurid, suggesting a much shorter length of 35–40 meters with mass between 80–120 tons. [22]
Exhumations of bodies four years after death are rare, so it is not easy to compare to larger samples. If someone asked me if it was possible to have a body in this condition after four years, I ...
The Upper Dinosaur Member, which is the layer of the Tendaguru Formation that the holotype was recovered from. The remains of Australodocus bohetii were recovered in 1909 from the Upper Dinosaur Member of the Tendaguru Formation of Tanzania, which has been a fertile ground for many Jurassic dinosaurs, including several genera of large sauropods, such as Giraffatitan, Wamweracaudia, Janenschia ...
The latest dinosaur being mounted at the Natural History Museum in Los Angeles is not only a member of a new species — it's also the only one found on the planet whose bones are green, according ...