Depends how up-to-date the models are. Most modern depictions of Diplodocus have spines along the back. If not - and assuming the spines aren't just still to be added - Mamenchisaurus?? It's certainly something very slender-necked.
in the wild individuals of this particular type of monorail mass together, and the black and white striping creates a fluctuating pattern that confuses their predators.
in the wild individuals of this particular type of monorail mass together, and the black and white striping creates a fluctuating pattern that confuses their predators.
