Hm. A quick Wikipedia lookup show that 3 out of 4 conifer orders went extinct since the Jurassic; species diversity is centered in mountains of China, Japan, Mexico and California; many families exist only in the southern hemisphere tho fossils show them once worldwide.
And about leaves: we were talking trees - of course herbs existed hundreds of millions of years earlier.
And about leaves: we were talking trees - of course herbs existed hundreds of millions of years earlier.