Late Cretaceous (~70 million years ago)
Gobi desert, Mongolia
Nemegt Formation
Alternating zones of distinctly differentiated scales were discovered along the dinosaur's tail, leading researchers to conclude that it most likely exhibited a vertically striped coloration. This inference relies on comparative data from extant reptiles, in which boundaries between different color patterns frequently — though not invariably — correspond to shifts in scale morphology, size, or surface texture.
Morphological analysis of fossilized integument and scale architecture.
Artist's impression of Saurolophus angustirostris.
Skin specimen of Saurolophus angustirostris.
Size of Saurolophus.