What characteristic suggests Xiphactinus had a highly specialized oral structure for consumption?

Answer

Its ability to achieve a maximum gape for a 'one-gulp kill'

The consistent evidence pointing toward swallowing prey whole, often involving bulky items, suggests a highly specialized adaptation in the oral structure of Xiphactinus. This adaptation enabled the predator to maximize its gape significantly, facilitating the rapid ingestion of prey—the 'one-gulp kill' strategy. This efficient method avoided the complications associated with crushing large, struggling fish or tearing them apart, implying a skull structure potentially more kinetic than its contemporaries.

What characteristic suggests Xiphactinus had a highly specialized oral structure for consumption?
dietanimalfishXiphactinusPrehistoric