Eocene–Oligocene mammalian faunal turnover in the Hampshire Basin, UK: calibration to the global time scale and the major cooling event

Pacific marine records resolve stepwise earliest Oligocene ice growth, while the Hampshire Basin mammal record separates regional turnover, a roughly 350 kyr hiatus and later Asian immigrant appearances; the records are complementary, not proof of one simple causal chain.

Palaeotherium medium is sampled in the late Eocene at La Débruge, and separate British range data place regional Palaeotherium loss near the Grande Coupure without dating a global extinction instant.

The profile uses Palaeotherium at genus rank within Palaeotheriidae, while ecological detail is explicitly restricted to the sampled species P. medium.

This profile represents western European study records from La Débruge and the Hampshire Basin rather than a complete genus-wide occurrence distribution.