At what approximate angle does the neural arch of the Xenoposeidon vertebra slope anteriorly?
Answer
35 degrees
One of the most defining characteristics of the *Xenoposeidon* holotype vertebra is the pronounced orientation of its neural arch. This structure, which sits atop the main body of the vertebra (the centrum), is noted for leaning forward significantly. The precise measurement derived from analysis of the preserved sections indicates that this anterior slope, or tilt, occurs at an angle of approximately 35 degrees. This extreme anterior tilt is directly reflected in the specific epithet *proneneukos* and suggests a unique adaptation in how the dinosaur supported its neck and head relative to its torso, potentially differing greatly from the posture of other known sauropods of the time.
Related Questions
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