Diplodocus

Posture

Diplodocus

Picture Of

Diplodocus

Diplodocus

Posture

Foam Roller Exercises ~ The depiction of Diplodocus posture has changed considerably over the years. For instance, a classic 1910 reconstruction by Oliver P. Hay depicts two Diplodocus with splayed lizard-like limbs on the banks of a river. Hay argued that Diplodocus had a sprawling, lizard-like gait with widely splayed legs,[32] and was supported by Gustav Tornier. However, this hypothesis was contested by W. J. Holland, who demonstrated that a sprawling Diplodocus would have needed a trench to pull its belly through.[33] Finds of sauropod footprints in the 1930s eventually put Hay’s theory to rest.

Foam Roller Exercises ~ Later, diplodocids were often portrayed with their necks held high up in the air, allowing them to graze from tall trees. Studies using computer models have shown that neutral posture of the neck was horizontal, rather than vertical, and scientists such as Kent Stephens have used this to argue that sauropods including Diplodocus did not raise their heads much above shoulder level.[34][35] However, subsequent studies demonstrated that all tetrapods appear to hold their necks at the maximum possible vertical extension when in a normal, alert posture, and argued that the same would hold true for sauropods barring any unknown, unique characteristics that set the soft tissue anatomy of their necks apart from other animals. One of the sauropod models in this study was Diplodocus, which they found would have held its neck at about a 45 degree angle with the head pointed downwards in a resting posture.

As with the related genus Barosaurus, the very long neck of Diplodocus is the source of much controversy among scientists. A 1992 Columbia University study of Diplodocid neck structure indicated that the longest necks would have required a 1.6 ton heart — a tenth of the animal’s body weight. The study proposed that animals like these would have had rudimentary auxiliary ‘hearts’ in their necks, whose only purpose was to pump blood up to the next ‘heart’. While the long neck has traditionally been interpreted as a feeding adaptation, it was also suggested[37] that the oversized neck of Diplodocus and its relatives may have been primarily a sexual display, with any other feeding benefits coming second. However, a recent study refuted this idea in detail.

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