Something too rarely posted on #FossilFriday: #Pollen
E.g. from the late #Oligocene to early #Miocene of #Thailand
Fresh #OpenAccess paper coauthored by my former colleagues.
Malaikanok & al. https://doi.org/10.1093/botlinnean/boac075

Pic1: paratropical #Eotrigonobalanus (extinct)
Pic2: cycle-cup oak (#Quercus sect. #Cyclobalanopsis; today tropical-subtropical)
Pic3: holm oak (sect. Ilex, same subgenus; tropical to cold-temperate)
Pic4: white oak (sect. Quercus, other subgenus, today extratropical in Eurasia)