How did Xenoposeidon's vertical neck flexibility compare to brachiosaurs?
Answer
Likely less vertical flexibility than the extreme reach of brachiosaurs
While all sauropods had a general blueprint suggesting a wide feeding range, the text implies variations in neck mobility among lineages. Xenoposeidon, being a rebbachisaurid, is suggested to have had relatively more vertical neck flexibility compared to certain other sauropod lines, but this flexibility was still probably surpassed by the extreme vertical reach characteristic of brachiosaurs. This variation in neck mechanics would have influenced the precise distribution of foraging efforts between very high browsing and other feeding zones.
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