Did you know that bees existed 199 million years ago when dinosaurs walked the earth?
"Insects constitute the most abundant terrestrial invertebrates found in the Jurassic fossil record. Groups include the odonates (damselflies and dragonflies), coleopterans (beetles), dipterans (flies), and hymenopterans (bees, ants, and wasps). The discovery of Jurassic bees—which today are dependent upon flowering plants (angiosperms)—suggests either the early presence of angiosperms or that bees were originally adapted to other strategies. " Encyclopædia Britannica 2011
In plain Engish this means fossils of bees have been found from the Jurassic time. This suggests that flowering plants also existed in Jurassic times.
Hymenopteran means any member of the third largest and most beneficial to humans of all insect orders. They are beneficial as pollinators of both wild and cultivated flowering plants and as makers of honey.
Amber, fossilized tree resin, has also been found with bees in it, from 100 million years ago. The amber specimen came from a mine in the Hukawng Valley of northern Myanmar (Burma).