Well, diversification began long before the New Economy was ever thought of.
However, other nuclear (9 12) and mitochondrial (13, 14) DNA studies propose an earlier, more gradual diversification, beginning within the Cretaceous 80 to 125 Ma.
This diversification began in the 1980s, as a much younger Jimmy, with the support of his father and uncle, bought six tankers during a slide in oil prices, for $5 million each.
Vascular plants appeared later and their diversification began in the Devonian period (about 400 Ma).
Diversification began in the first decade of the 19th century if not earlier, and increased over time.
Diversification began during the Eocene, when global temperatures peaked and tropical forests occurred at low latitudes.
Contrary to recent suggestions that orchid diversification began in a period of global warming, our results place the onset of diversification of the largest orchid subfamilies (Orchidoideae and Epidendroideae) in a period of global cooling subsequent to the Early Eocene Climatic Optimum.
We performed molecular phylogenetic and dating analyses using two partial mitochondrial genes (ND2 and ND4) of 97 samples of Bassiana spp. Our results reveal a pattern of diversification beginning in the Middle Miocene, with intraspecific diversification arising from 5.7 to 1.7 million years ago in the Upper Miocene-Lower Pleistocene.
In B. platynota, the same pattern is observed: diversification beginning in the Lower and/or Upper Pliocene and dividing populations into four main lineages, one in the South Eastern Highlands (III), two in the Sydney Basin (South: VI and North: V), and one on the NSW North Coast (IV).
Skop studies cell diversification, which begins with cytokinesis, the division of cells in an embryo.
