If Xenoposeidon shared the build of Diplodocus, what was the corresponding estimated length?
Answer
20 meters (66 feet)
Size estimations for *Xenoposeidon* are speculative as they rely on scaling up from a single vertebra compared to better-known species. Two main analogues were utilized to generate a range of possibilities. When comparing *Xenoposeidon*'s structure to the lighter but longer body plan exemplified by *Diplodocus*, the resulting estimate projects a total body length stretching significantly further, reaching approximately 20 meters, which is equivalent to 66 feet. It is important to note that this lighter estimate corresponds with a substantially lower projected mass (around 2.8 tonnes) compared to the estimate derived from using the bulkier *Brachiosaurus* analogue.
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