What is the commonly estimated adult length range for Xiphactinus specimens?
Answer
11 to 13 feet (3.4 to 4 meters)
The physical dimensions of adult *Xiphactinus* specimens are frequently estimated to fall between 11 and 13 feet in length, equating to roughly 3.4 to 4 meters. While the largest known fragments suggest that some individuals might have approached 16 feet, the 11 to 13 foot measurement is cited as the common adult size that cemented its reputation as a terror and dominant fish predator within the Western Interior Seaway ecosystem during the Late Cretaceous.

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