What environmental condition characterized the seas where Xiphactinus thrived and required substantial prey?

Answer

Warm, shallow seas

The environment supporting such a gigantic predator was characterized by specific thermal and depth conditions prevalent during the Late Cretaceous period. The text specifies that Xiphactinus thrived in the warm, shallow seas of that time. This type of habitat typically supported the abundant marine ecosystem required to sustain the substantial dietary needs of a fish reaching the magnitude of Xiphactinus, allowing it access to sizable prey species.

What environmental condition characterized the seas where Xiphactinus thrived and required substantial prey?
dietanimalfishXiphactinusPrehistoric