This is funny, those are likely fossilized Cycads..they just look like beehives.

anyway even if they were beehives...

"Estimates of the age of crown angiosperms are in the range (130-)140-180(-210) mybp (e.g. Doyle 2001; Sanderson & Doyle 2001; Wikström et al. 2001; Soltis et al. 2002a; Aoki et al. 2004; Sanderson et al. 2004; Bell et al. 2005; Leebens-Mack et al. 2005), although some estimates based on molecular data are substantially older and the whole issue of dating is a subject of intense discussion"

According to this, there is evidence for angiosperms at least 130 mybp, but very possibly much earlier than this, 210 or more.

All this aside there is no reason bees couldnt have developed before flowering plants, so your arguement proves exactly nothing. It just another example of garbage argument used by creationists who dont really understand science.