During which epochs did *Arsinoitherium* thrive, according to fossil dating?
Answer
Late Eocene and early Oligocene epochs
*Arsinoitherium* existed during a specific window of time characterized by warmer, wetter global climates before significant cooling. The fossil record places its active period spanning the late Eocene and extending into the early Oligocene epochs. Quantitatively, this timeframe correlates roughly to the span between 36 and 27 million years ago. This placement is crucial as its eventual disappearance aligns with the climate shifts that concluded the Oligocene.

Related Questions
What was the maximum estimated weight for the bulky *Arsinoitherium*?To which extinct order does *Arsinoitherium* belong, classifying it separately from true rhinos?During which epochs did *Arsinoitherium* thrive, according to fossil dating?What likely covered the substantial, two-pronged horns of *Arsinoitherium*?Where are the fossils of *Arsinoitherium* primarily recovered, indicating its primary habitat?Which distant mammalian relatives share an evolutionary neighborhood with *Arsinoitherium*?What was the probable dietary preference of *Arsinoitherium* given its habitat and teeth structure?What is the likely origin of the name *Arsinoitherium*?What non-defensive/display function might the basal structure of the horns have provided in its swampy habitat?What primary environmental factor led to the disappearance of *Arsinoitherium* from the fossil record?