In Barbados, coral levels don’t grow above sea level. Preserved coral on land means that sea levels have fell and Barbados is lifting up.
Meaning glaciers advanced and retreated during the quaternary.
Pollen:
Uniformitarianism - the same plants have been found throughout the quaternary so the climate must have been similar
There is no pollen found before 12,000 years ago in Scottishlake deposits. This is because Scotland was covered in ice. So evidence for life was restricted to interglacial periods.
Beetles:
Preserved better than other insects due to chitin outer wings
Common in Pleistocene - finished with start of recent interglacial
Arctic, alpine, boreal and temperate species found - respond qucikly to climate change
Small so better preserved
vertebrate:
Bones found in river sands, lake deposits and caves from interglacial periods
During most recent glacial period in Britain, there is fossil evidence of mammoths, woolly rhino and reindeer
As climate warmed grasses are replaced by conifers and then deciduous trees
Also the introduction of badgers, foxes and lions
Woolly mammoths and woolly rhino were adapted to cold climates. They had a large surface area to volume ratio so lost less heat.