Sentence examples for major diversification from inspiring English sources
There was another major diversification between North American and European amphisbaenians 40-56 million years ago. 40-56 million years ago
The fossil history of owls dates to the beginning of the Paleocene Epoch 65.5 million years ago, after which occurred a major diversification by the Eocene Epoch (55.8 to 33.9 million years ago).
The major diversification of modern birds probably took place in the Cretaceous, and it must have started early in that period because fragmentary fossil evidence of foot-propelled divers (Enaliornis) and of an early relative of the flamingos (Gallornis) are known from Lower Cretaceous deposits in Europe.
Obviously these personal accounts would have numerous safeguards, including major diversification.
In the course of evolution, this mechanism has led to major diversification of protein folds and their functionalities.
The origin of cobweb spiders, and hence the cobweb a speciallized trap for pedestrian prey coincides with a major diversification shift in ants.
On the other hand, articulate brachiopods have produced major diversifications, and suffered severe mass extinctions but the articulate Rhynchonellida and Terebratulida, the most diverse present-day groups, appeared at the start of the Ordovician and Carboniferous respectively.
The results presented here show that the major diversifications within the WOX gene family happened before the split between angiosperms and gymnosperms approximately 300 million years ago.
Reconstructing the gene complements, or repertoires, of the last common ancestor of the Bilateria and Metazoa are important goals for evolutionary biology, due to these ancestors having been the starting points for the major diversifications of the animal kingdom.
The other two subsequent divergences ascended to 6.06 and 3.51 Mya respectively, are presumably consequences of the global substitution of C3 to C4 vegetation [ 34], coinciding with the major diversifications of the birds of genus Garrulax [ 35], which are closely related to A. morrisonia.
Ohno (1970), in particular, considered duplication and divergence of genes a critical requirement for major evolutionary diversification: "Natural selection merely modified while redundancy created," he wrote.
