Apatosaurus louisae, by far one of the more interesting sauropods of the Morrison. This is really just to show off facial integument at close range for sauropods. That is, fleshy oral tissues, distal nostrils near snout tip, a hint of a throat but with saggy wrinkles. And old female, perhaps, close to the end of her life. Aged matron, herd queen. Absence of a median row of dorsal spines is due to the lack of any published data regarding distribution; not all sauropods may have had them.
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