What characteristic defined the marine environment *Waimanu* inhabited during the Eocene?

Answer

Warm temperatures, resulting in far milder seas than those present today

The Eocene global climate was warmer, leading to milder sea conditions around New Zealand and Antarctica, supporting a specific type of biomass concentration different from modern cold-water environments.

What characteristic defined the marine environment *Waimanu* inhabited during the Eocene?
dietanimalextinctpenguinWaimanu