Middle Miocene terrestrial climate reconstructions from fossil plant remains. 197 sites are reconstructed from across the globe. These are presented with latitude-longitude co-ordinates (both modern and palaeo), published minimum and maximum ages of each site and a 1/0 column to denote those sites relating to the mid Miocene climatic optimum. Reconstructed variables are: bio1 (mean annual temperature in °C), bio8 (mean temperature of the wettest quarter in °C), bio10 (mean temperature of the warmest quarter in °C), bio11 (mean temperature of the coldest quarter in °C), bio12 (mean annual precipitation in mm), bio14 (Precipitation of Driest Month in mm), bio17 (Precipitation of Driest Quarter in mm), bio18 (Precipitation of Warmest Quarter in mm) and bio19 (Precipitation of coldest Quarter in mm). bios are presented as an optima with 0.5 and 0.95 uncertainty